Foveated rendering options break streamer (Quest 3, Win 11)

[clarencefoy]

Description

I have a Quest 3, using it wired over USB. There's no eye tracking with the Q3. I find the area of the foveated rendering to be too small. I often 'look around' within my headset and thus end up looking at the blurry periphery of the foveated rendering.

Connecting over USB gives me an easy gigabit of bandwidth for the video, which makes me think I should be able to make the 'sharp' area of the stream reasonably big.

Initially I tried disabling foveated rendering. This made latency increase from 50ms to 150ms, which was too much.

Then I tried changing the center region width and height. It is set to 0.450 width and 0.400 height by default.

Changing this value in any way at all, in any direction, causes the stream to return to a grey or black screen.

I have only ever used this version, as I started playing around with this last week. This is version 20.11.1

General Troubleshooting

• [x ] I carefully followed the instructions in the README and successfully completed the setup wizard
• [x ] I read the ALVR GitHub Wiki

Environment

Hardware

CPU:

Intel 12800HX

GPU:

Mobile 3070ti

GPU Driver Version:
566.14

Audio:
Some Realtek thing

Installation

ALVR Version:
20.11.1

ALVR Settings File:

{
  "server_version": "20.11.1",
  "drivers_backup": null,
  "openvr_config": {
    "eye_resolution_width": 2592,
    "eye_resolution_height": 2688,
    "target_eye_resolution_width": 2592,
    "target_eye_resolution_height": 2688,
    "tracking_ref_only": false,
    "enable_vive_tracker_proxy": false,
    "aggressive_keyframe_resend": false,
    "adapter_index": 0,
    "codec": 0,
    "h264_profile": 0,
    "refresh_rate": 120,
    "use_10bit_encoder": false,
    "use_full_range_encoding": true,
    "encoding_gamma": 1.0,
    "enable_hdr": false,
    "force_hdr_srgb_correction": false,
    "clamp_hdr_extended_range": false,
    "enable_pre_analysis": false,
    "enable_vbaq": false,
    "enable_hmqb": false,
    "use_preproc": false,
    "preproc_sigma": 4,
    "preproc_tor": 7,
    "amd_encoder_quality_preset": 2,
    "rate_control_mode": 0,
    "filler_data": false,
    "entropy_coding": 1,
    "force_sw_encoding": false,
    "sw_thread_count": 0,
    "controller_is_tracker": false,
    "controllers_enabled": true,
    "body_tracking_vive_enabled": false,
    "body_tracking_has_legs": false,
    "enable_foveated_encoding": true,
    "foveation_center_size_x": 0.45,
    "foveation_center_size_y": 0.4,
    "foveation_center_shift_x": 0.4,
    "foveation_center_shift_y": 0.1,
    "foveation_edge_ratio_x": 4.0,
    "foveation_edge_ratio_y": 5.0,
    "enable_color_correction": true,
    "brightness": 0.0,
    "contrast": 0.0,
    "saturation": 0.5,
    "gamma": 1.0,
    "sharpening": 0.5,
    "linux_async_compute": false,
    "linux_async_reprojection": false,
    "nvenc_quality_preset": 1,
    "nvenc_tuning_preset": 2,
    "nvenc_multi_pass": 1,
    "nvenc_adaptive_quantization_mode": 1,
    "nvenc_low_delay_key_frame_scale": -1,
    "nvenc_refresh_rate": -1,
    "enable_intra_refresh": false,
    "intra_refresh_period": -1,
    "intra_refresh_count": -1,
    "max_num_ref_frames": -1,
    "gop_length": -1,
    "p_frame_strategy": -1,
    "nvenc_rate_control_mode": -1,
    "rc_buffer_size": -1,
    "rc_initial_delay": -1,
    "rc_max_bitrate": -1,
    "rc_average_bitrate": -1,
    "nvenc_enable_weighted_prediction": false,
    "capture_frame_dir": "/tmp",
    "amd_bitrate_corruption_fix": false,
    "use_separate_hand_trackers": false,
    "_controller_profile": 1,
    "_server_impl_debug": false,
    "_client_impl_debug": false,
    "_server_core_debug": false,
    "_client_core_debug": false,
    "_conncection_debug": false,
    "_sockets_debug": false,
    "_server_gfx_debug": false,
    "_client_gfx_debug": false,
    "_encoder_debug": false,
    "_decoder_debug": false
  },
  "client_connections": {
    "6590.client": {
      "display_name": "Quest 3",
      "current_ip": null,
      "manual_ips": [
        "127.0.0.1"
      ],
      "trusted": true,
      "connection_state": "Disconnected",
      "cabled": false
    }
  },
  "session_settings": {
    "video": {
      "bitrate": {
        "gui_collapsed": false,
        "mode": {
          "ConstantMbps": 1000,
          "Adaptive": {
            "gui_collapsed": false,
            "saturation_multiplier": 0.95,
            "max_bitrate_mbps": {
              "enabled": false,
              "content": 100
            },
            "min_bitrate_mbps": {
              "enabled": false,
              "content": 5
            },
            "max_network_latency_ms": {
              "enabled": false,
              "content": 8
            },
            "encoder_latency_limiter": {
              "enabled": true,
              "content": {
                "max_saturation_multiplier": 0.9
              }
            },
            "decoder_latency_limiter": {
              "enabled": true,
              "content": {
                "gui_collapsed": false,
                "max_decoder_latency_ms": 30,
                "latency_overstep_frames": 90,
                "latency_overstep_multiplier": 0.99
              }
            }
          },
          "variant": "ConstantMbps"
        },
        "adapt_to_framerate": {
          "enabled": false,
          "content": {
            "framerate_reset_threshold_multiplier": 2.0
          }
        },
        "history_size": 256,
        "image_corruption_fix": false
      },
      "preferred_codec": {
        "variant": "H264"
      },
      "foveated_encoding": {
        "enabled": true,
        "content": {
          "force_enable": false,
          "center_size_x": 0.45,
          "center_size_y": 0.4,
          "center_shift_x": 0.4,
          "center_shift_y": 0.1,
          "edge_ratio_x": 4.0,
          "edge_ratio_y": 5.0
        }
      },
      "color_correction": {
        "enabled": true,
        "content": {
          "brightness": 0.0,
          "contrast": 0.0,
          "saturation": 0.5,
          "gamma": 1.0,
          "sharpening": 0.5
        }
      },
      "max_buffering_frames": 2.0,
      "buffering_history_weight": 0.9,
      "optimize_game_render_latency": true,
      "encoder_config": {
        "gui_collapsed": false,
        "rate_control_mode": {
          "variant": "Cbr"
        },
        "filler_data": false,
        "h264_profile": {
          "variant": "High"
        },
        "entropy_coding": {
          "variant": "Cavlc"
        },
        "use_10bit": false,
        "use_full_range": true,
        "encoding_gamma": 1.0,
        "enable_hdr": false,
        "force_hdr_srgb_correction": false,
        "clamp_hdr_extended_range": false,
        "nvenc": {
          "gui_collapsed": false,
          "quality_preset": {
            "variant": "P1"
          },
          "tuning_preset": {
            "variant": "LowLatency"
          },
          "multi_pass": {
            "variant": "QuarterResolution"
          },
          "adaptive_quantization_mode": {
            "variant": "Spatial"
          },
          "low_delay_key_frame_scale": -1,
          "refresh_rate": -1,
          "enable_intra_refresh": false,
          "intra_refresh_period": -1,
          "intra_refresh_count": -1,
          "max_num_ref_frames": -1,
          "gop_length": -1,
          "p_frame_strategy": -1,
          "rate_control_mode": -1,
          "rc_buffer_size": -1,
          "rc_initial_delay": -1,
          "rc_max_bitrate": -1,
          "rc_average_bitrate": -1,
          "enable_weighted_prediction": false
        },
        "amf": {
          "gui_collapsed": true,
          "quality_preset": {
            "variant": "Speed"
          },
          "enable_vbaq": false,
          "enable_hmqb": false,
          "use_preproc": false,
          "preproc_sigma": 4,
          "preproc_tor": 7,
          "enable_pre_analysis": false
        },
        "software": {
          "force_software_encoding": false,
          "thread_count": 0
        }
      },
      "force_software_decoder": false,
      "mediacodec_extra_options": {
        "gui_collapsed": false,
        "key": "",
        "value": {
          "Float": 0.0,
          "Int32": 0,
          "Int64": 0,
          "String": "",
          "variant": "Int32"
        },
        "content": [
          [
            "operating-rate",
            {
              "Float": 0.0,
              "Int32": 2147483647,
              "Int64": 0,
              "String": "",
              "variant": "Int32"
            }
          ],
          [
            "priority",
            {
              "Float": 0.0,
              "Int32": 0,
              "Int64": 0,
              "String": "",
              "variant": "Int32"
            }
          ],
          [
            "vendor.qti-ext-dec-low-latency.enable",
            {
              "Float": 0.0,
              "Int32": 1,
              "Int64": 0,
              "String": "",
              "variant": "Int32"
            }
          ]
        ]
      },
      "transcoding_view_resolution": {
        "Scale": 1.0,
        "Absolute": {
          "width": 2592,
          "height": {
            "set": false,
            "content": 1072
          }
        },
        "variant": "Absolute"
      },
      "emulated_headset_view_resolution": {
        "Scale": 1.0,
        "Absolute": {
          "width": 2592,
          "height": {
            "set": false,
            "content": 1072
          }
        },
        "variant": "Absolute"
      },
      "preferred_fps": 120.0,
      "adapter_index": 0,
      "clientside_foveation": {
        "enabled": false,
        "content": {
          "mode": {
            "Static": {
              "level": {
                "variant": "High"
              }
            },
            "Dynamic": {
              "max_level": {
                "variant": "High"
              }
            },
            "variant": "Dynamic"
          },
          "vertical_offset_deg": 0.0
        }
      }
    },
    "audio": {
      "game_audio": {
        "enabled": true,
        "content": {
          "gui_collapsed": false,
          "device": {
            "set": true,
            "content": {
              "NameSubstring": "Headphones (Realtek(R) Audio)",
              "Index": 0,
              "variant": "NameSubstring"
            }
          },
          "mute_when_streaming": true,
          "buffering": {
            "gui_collapsed": true,
            "average_buffering_ms": 50,
            "batch_ms": 10
          }
        }
      },
      "microphone": {
        "enabled": false,
        "content": {
          "gui_collapsed": true,
          "devices": {
            "Custom": {
              "sink": {
                "NameSubstring": "",
                "Index": 0,
                "variant": "NameSubstring"
              },
              "source": {
                "NameSubstring": "",
                "Index": 0,
                "variant": "NameSubstring"
              }
            },
            "variant": "Automatic"
          },
          "buffering": {
            "gui_collapsed": true,
            "average_buffering_ms": 50,
            "batch_ms": 10
          }
        }
      }
    },
    "headset": {
      "position_recentering_mode": {
        "Local": {
          "view_height": 1.5
        },
        "variant": "LocalFloor"
      },
      "rotation_recentering_mode": {
        "variant": "Yaw"
      },
      "controllers": {
        "enabled": true,
        "content": {
          "gui_collapsed": false,
          "tracked": true,
          "hand_skeleton": {
            "enabled": true,
            "content": {
              "steamvr_input_2_0": false
            }
          },
          "multimodal_tracking": false,
          "hand_tracking_interaction": {
            "enabled": false,
            "content": {
              "only_touch": false,
              "pinch_touch_distance": 0.0,
              "pinch_trigger_distance": 0.25,
              "curl_touch_distance": 2.0,
              "curl_trigger_distance": 2.5,
              "joystick_deadzone": 40.0,
              "joystick_offset_horizontal": 0.0,
              "joystick_offset_vertical": 0.0,
              "joystick_range": 1.0,
              "activation_delay": 50,
              "deactivation_delay": 100,
              "repeat_delay": 100
            }
          },
          "steamvr_pipeline_frames": 3.0,
          "haptics": {
            "enabled": true,
            "content": {
              "gui_collapsed": true,
              "intensity_multiplier": 1.0,
              "amplitude_curve": 1.0,
              "min_duration_s": 0.01
            }
          },
          "emulation_mode": {
            "Custom": {
              "serial_number": "ALVR Controller",
              "button_set": {
                "gui_collapsed": false,
                "element": "/user/hand/left/input/a/click",
                "content": []
              }
            },
            "variant": "Quest2Touch"
          },
          "extra_openvr_props": {
            "gui_collapsed": true,
            "element": {
              "TrackingSystemName": "",
              "ModelNumber": "",
              "SerialNumber": "",
              "RenderModelName": "",
              "WillDriftInYaw": false,
              "ManufacturerName": "",
              "TrackingFirmwareVersion": "",
              "HardwareRevisionString": "",
              "AllWirelessDongleDescriptions": "",
              "ConnectedWirelessDongle": "",
              "DeviceIsWireless": false,
              "DeviceIsCharging": false,
              "DeviceBatteryPercentage": 0.0,
              "FirmwareUpdateAvailable": false,
              "FirmwareManualUpdate": false,
              "FirmwareManualUpdateURL": "",
              "HardwareRevisionUint64": 0,
              "FirmwareVersion": 0,
              "FPGAVersion": 0,
              "VRCVersion": 0,
              "RadioVersion": 0,
              "DongleVersion": 0,
              "BlockServerShutdown": false,
              "CanUnifyCoordinateSystemWithHmd": false,
              "ContainsProximitySensor": false,
              "DeviceProvidesBatteryStatus": false,
              "DeviceCanPowerOff": false,
              "FirmwareProgrammingTarget": "",
              "DeviceClass": 0,
              "HasCamera": false,
              "DriverVersion": "",
              "FirmwareForceUpdateRequired": false,
              "ViveSystemButtonFixRequired": false,
              "ParentDriver": 0,
              "ResourceRoot": "",
              "RegisteredDeviceType": "",
              "InputProfilePath": "",
              "NeverTracked": false,
              "NumCameras": 0,
              "CameraFrameLayout": 0,
              "CameraStreamFormat": 0,
              "AdditionalDeviceSettingsPath": "",
              "Identifiable": false,
              "BootloaderVersion": 0,
              "AdditionalSystemReportData": "",
              "CompositeFirmwareVersion": "",
              "FirmwareRemindUpdate": false,
              "PeripheralApplicationVersion": 0,
              "ManufacturerSerialNumber": "",
              "ComputedSerialNumber": "",
              "EstimatedDeviceFirstUseTime": 0,
              "ReportsTimeSinceVSync": false,
              "SecondsFromVsyncToPhotons": 0.0,
              "DisplayFrequency": 0.0,
              "UserIpdMeters": 0.0,
              "CurrentUniverseId": 0,
              "PreviousUniverseId": 0,
              "DisplayFirmwareVersion": 0,
              "IsOnDesktop": false,
              "DisplayMCType": 0,
              "DisplayMCOffset": 0.0,
              "DisplayMCScale": 0.0,
              "EdidVendorID": 0,
              "DisplayMCImageLeft": "",
              "DisplayMCImageRight": "",
              "DisplayGCBlackClamp": 0.0,
              "EdidProductID": 0,
              "DisplayGCType": 0,
              "DisplayGCOffset": 0.0,
              "DisplayGCScale": 0.0,
              "DisplayGCPrescale": 0.0,
              "DisplayGCImage": "",
              "LensCenterLeftU": 0.0,
              "LensCenterLeftV": 0.0,
              "LensCenterRightU": 0.0,
              "LensCenterRightV": 0.0,
              "UserHeadToEyeDepthMeters": 0.0,
              "CameraFirmwareVersion": 0,
              "CameraFirmwareDescription": "",
              "DisplayFPGAVersion": 0,
              "DisplayBootloaderVersion": 0,
              "DisplayHardwareVersion": 0,
              "AudioFirmwareVersion": 0,
              "CameraCompatibilityMode": 0,
              "ScreenshotHorizontalFieldOfViewDegrees": 0.0,
              "ScreenshotVerticalFieldOfViewDegrees": 0.0,
              "DisplaySuppressed": false,
              "DisplayAllowNightMode": false,
              "DisplayMCImageWidth": 0,
              "DisplayMCImageHeight": 0,
              "DisplayMCImageNumChannels": 0,
              "SecondsFromPhotonsToVblank": 0.0,
              "DriverDirectModeSendsVsyncEvents": false,
              "DisplayDebugMode": false,
              "GraphicsAdapterLuid": 0,
              "DriverProvidedChaperonePath": "",
              "ExpectedTrackingReferenceCount": 0,
              "ExpectedControllerCount": 0,
              "NamedIconPathControllerLeftDeviceOff": "",
              "NamedIconPathControllerRightDeviceOff": "",
              "NamedIconPathTrackingReferenceDeviceOff": "",
              "DoNotApplyPrediction": false,
              "DistortionMeshResolution": 0,
              "DriverIsDrawingControllers": false,
              "DriverRequestsApplicationPause": false,
              "DriverRequestsReducedRendering": false,
              "MinimumIpdStepMeters": 0.0,
              "AudioBridgeFirmwareVersion": 0,
              "ImageBridgeFirmwareVersion": 0,
              "ImuFactoryGyroBias": {
                "gui_collapsed": false,
                "content": [
                  0.0,
                  0.0,
                  0.0
                ]
              },
              "ImuFactoryGyroScale": {
                "gui_collapsed": false,
                "content": [
                  0.0,
                  0.0,
                  0.0
                ]
              },
              "ImuFactoryAccelerometerBias": {
                "gui_collapsed": false,
                "content": [
                  0.0,
                  0.0,
                  0.0
                ]
              },
              "ImuFactoryAccelerometerScale": {
                "gui_collapsed": false,
                "content": [
                  0.0,
                  0.0,
                  0.0
                ]
              },
              "ConfigurationIncludesLighthouse20Features": false,
              "AdditionalRadioFeatures": 0,
              "ExpectedControllerType": "",
              "HmdTrackingStyle": 0,
              "DriverProvidedChaperoneVisibility": false,
              "HmdColumnCorrectionSettingPrefix": "",
              "CameraSupportsCompatibilityModes": false,
              "SupportsRoomViewDepthProjection": false,
              "DisplaySupportsMultipleFramerates": false,
              "DisplayColorMultLeft": {
                "gui_collapsed": false,
                "content": [
                  0.0,
                  0.0,
                  0.0
                ]
              },
              "DisplayColorMultRight": {
                "gui_collapsed": false,
                "content": [
                  0.0,
                  0.0,
                  0.0
                ]
              },
              "DisplaySupportsRuntimeFramerateChange": false,
              "DisplaySupportsAnalogGain": false,
              "DisplayMinAnalogGain": 0.0,
              "DisplayMaxAnalogGain": 0.0,
              "DashboardScale": 0.0,
              "IpdUIRangeMinMeters": 0.0,
              "IpdUIRangeMaxMeters": 0.0,
              "HmdSupportsHDCP14LegacyCompat": false,
              "HmdSupportsMicMonitoring": false,
              "DriverRequestedMuraCorrectionMode": 0,
              "DriverRequestedMuraFeatherInnerLeft": 0,
              "DriverRequestedMuraFeatherInnerRight": 0,
              "DriverRequestedMuraFeatherInnerTop": 0,
              "DriverRequestedMuraFeatherInnerBottom": 0,
              "DriverRequestedMuraFeatherOuterLeft": 0,
              "DriverRequestedMuraFeatherOuterRight": 0,
              "DriverRequestedMuraFeatherOuterTop": 0,
              "DriverRequestedMuraFeatherOuterBottom": 0,
              "AudioDefaultPlaybackDeviceId": "",
              "AudioDefaultRecordingDeviceId": "",
              "AudioDefaultPlaybackDeviceVolume": 0.0,
              "AudioSupportsDualSpeakerAndJackOutput": false,
              "AttachedDeviceId": "",
              "SupportedButtons": 0,
              "Axis0Type": 0,
              "Axis1Type": 0,
              "Axis2Type": 0,
              "Axis3Type": 0,
              "Axis4Type": 0,
              "ControllerRoleHint": 0,
              "FieldOfViewLeftDegrees": 0.0,
              "FieldOfViewRightDegrees": 0.0,
              "FieldOfViewTopDegrees": 0.0,
              "FieldOfViewBottomDegrees": 0.0,
              "TrackingRangeMinimumMeters": 0.0,
              "TrackingRangeMaximumMeters": 0.0,
              "ModeLabel": "",
              "CanWirelessIdentify": false,
              "Nonce": 0,
              "IconPathName": "",
              "NamedIconPathDeviceOff": "",
              "NamedIconPathDeviceSearching": "",
              "NamedIconPathDeviceSearchingAlert": "",
              "NamedIconPathDeviceReady": "",
              "NamedIconPathDeviceReadyAlert": "",
              "NamedIconPathDeviceNotReady": "",
              "NamedIconPathDeviceStandby": "",
              "NamedIconPathDeviceAlertLow": "",
              "NamedIconPathDeviceStandbyAlert": "",
              "OverrideContainer": 0,
              "UserConfigPath": "",
              "InstallPath": "",
              "HasDisplayComponent": false,
              "HasControllerComponent": false,
              "HasCameraComponent": false,
              "HasDriverDirectModeComponent": false,
              "HasVirtualDisplayComponent": false,
              "HasSpatialAnchorsSupport": false,
              "ControllerType": "",
              "ControllerHandSelectionPriority": 0,
              "variant": "TrackingSystemName"
            },
            "content": []
          },
          "linear_velocity_cutoff": 0.05,
          "angular_velocity_cutoff": 10.0,
          "left_controller_position_offset": {
            "gui_collapsed": true,
            "content": [
              0.0,
              0.0,
              -0.11
            ]
          },
          "left_controller_rotation_offset": {
            "gui_collapsed": true,
            "content": [
              -20.0,
              0.0,
              0.0
            ]
          },
          "left_hand_tracking_position_offset": {
            "gui_collapsed": true,
            "content": [
              0.04,
              -0.02,
              -0.13
            ]
          },
          "left_hand_tracking_rotation_offset": {
            "gui_collapsed": true,
            "content": [
              0.0,
              -45.0,
              -90.0
            ]
          },
          "button_mappings": {
            "set": false,
            "content": {
              "gui_collapsed": false,
              "key": "/user/hand/left/input/a/click",
              "value": {
                "gui_collapsed": false,
                "element": {
                  "destination": "/user/hand/left/input/a/click",
                  "mapping_type": {
                    "HysteresisThreshold": {
                      "value": 0.5,
                      "deviation": 0.05
                    },
                    "BinaryToScalar": {
                      "off": 0.0,
                      "on": 1.0
                    },
                    "Remap": {
                      "min": 0.0,
                      "max": 1.0
                    },
                    "variant": "Passthrough"
                  },
                  "binary_conditions": {
                    "gui_collapsed": true,
                    "element": "/user/hand/left/input/trigger/touch",
                    "content": []
                  }
                },
                "content": []
              },
              "content": []
            }
          },
          "button_mapping_config": {
            "gui_collapsed": true,
            "click_threshold": {
              "value": 0.5,
              "deviation": 0.05
            },
            "touch_threshold": {
              "value": 0.1,
              "deviation": 0.05
            },
            "force_threshold": 0.8
          }
        }
      },
      "emulation_mode": {
        "Custom": {
          "serial_number": "Unknown"
        },
        "variant": "Quest2"
      },
      "extra_openvr_props": {
        "gui_collapsed": true,
        "element": {
          "TrackingSystemName": "",
          "ModelNumber": "",
          "SerialNumber": "",
          "RenderModelName": "",
          "WillDriftInYaw": false,
          "ManufacturerName": "",
          "TrackingFirmwareVersion": "",
          "HardwareRevisionString": "",
          "AllWirelessDongleDescriptions": "",
          "ConnectedWirelessDongle": "",
          "DeviceIsWireless": false,
          "DeviceIsCharging": false,
          "DeviceBatteryPercentage": 0.0,
          "FirmwareUpdateAvailable": false,
          "FirmwareManualUpdate": false,
          "FirmwareManualUpdateURL": "",
          "HardwareRevisionUint64": 0,
          "FirmwareVersion": 0,
          "FPGAVersion": 0,
          "VRCVersion": 0,
          "RadioVersion": 0,
          "DongleVersion": 0,
          "BlockServerShutdown": false,
          "CanUnifyCoordinateSystemWithHmd": false,
          "ContainsProximitySensor": false,
          "DeviceProvidesBatteryStatus": false,
          "DeviceCanPowerOff": false,
          "FirmwareProgrammingTarget": "",
          "DeviceClass": 0,
          "HasCamera": false,
          "DriverVersion": "",
          "FirmwareForceUpdateRequired": false,
          "ViveSystemButtonFixRequired": false,
          "ParentDriver": 0,
          "ResourceRoot": "",
          "RegisteredDeviceType": "",
          "InputProfilePath": "",
          "NeverTracked": false,
          "NumCameras": 0,
          "CameraFrameLayout": 0,
          "CameraStreamFormat": 0,
          "AdditionalDeviceSettingsPath": "",
          "Identifiable": false,
          "BootloaderVersion": 0,
          "AdditionalSystemReportData": "",
          "CompositeFirmwareVersion": "",
          "FirmwareRemindUpdate": false,
          "PeripheralApplicationVersion": 0,
          "ManufacturerSerialNumber": "",
          "ComputedSerialNumber": "",
          "EstimatedDeviceFirstUseTime": 0,
          "ReportsTimeSinceVSync": false,
          "SecondsFromVsyncToPhotons": 0.0,
          "DisplayFrequency": 0.0,
          "UserIpdMeters": 0.0,
          "CurrentUniverseId": 0,
          "PreviousUniverseId": 0,
          "DisplayFirmwareVersion": 0,
          "IsOnDesktop": false,
          "DisplayMCType": 0,
          "DisplayMCOffset": 0.0,
          "DisplayMCScale": 0.0,
          "EdidVendorID": 0,
          "DisplayMCImageLeft": "",
          "DisplayMCImageRight": "",
          "DisplayGCBlackClamp": 0.0,
          "EdidProductID": 0,
          "DisplayGCType": 0,
          "DisplayGCOffset": 0.0,
          "DisplayGCScale": 0.0,
          "DisplayGCPrescale": 0.0,
          "DisplayGCImage": "",
          "LensCenterLeftU": 0.0,
          "LensCenterLeftV": 0.0,
          "LensCenterRightU": 0.0,
          "LensCenterRightV": 0.0,
          "UserHeadToEyeDepthMeters": 0.0,
          "CameraFirmwareVersion": 0,
          "CameraFirmwareDescription": "",
          "DisplayFPGAVersion": 0,
          "DisplayBootloaderVersion": 0,
          "DisplayHardwareVersion": 0,
          "AudioFirmwareVersion": 0,
          "CameraCompatibilityMode": 0,
          "ScreenshotHorizontalFieldOfViewDegrees": 0.0,
          "ScreenshotVerticalFieldOfViewDegrees": 0.0,
          "DisplaySuppressed": false,
          "DisplayAllowNightMode": false,
          "DisplayMCImageWidth": 0,
          "DisplayMCImageHeight": 0,
          "DisplayMCImageNumChannels": 0,
          "SecondsFromPhotonsToVblank": 0.0,
          "DriverDirectModeSendsVsyncEvents": false,
          "DisplayDebugMode": false,
          "GraphicsAdapterLuid": 0,
          "DriverProvidedChaperonePath": "",
          "ExpectedTrackingReferenceCount": 0,
          "ExpectedControllerCount": 0,
          "NamedIconPathControllerLeftDeviceOff": "",
          "NamedIconPathControllerRightDeviceOff": "",
          "NamedIconPathTrackingReferenceDeviceOff": "",
          "DoNotApplyPrediction": false,
          "DistortionMeshResolution": 0,
          "DriverIsDrawingControllers": false,
          "DriverRequestsApplicationPause": false,
          "DriverRequestsReducedRendering": false,
          "MinimumIpdStepMeters": 0.0,
          "AudioBridgeFirmwareVersion": 0,
          "ImageBridgeFirmwareVersion": 0,
          "ImuFactoryGyroBias": {
            "gui_collapsed": false,
            "content": [
              0.0,
              0.0,
              0.0
            ]
          },
          "ImuFactoryGyroScale": {
            "gui_collapsed": false,
            "content": [
              0.0,
              0.0,
              0.0
            ]
          },
          "ImuFactoryAccelerometerBias": {
            "gui_collapsed": false,
            "content": [
              0.0,
              0.0,
              0.0
            ]
          },
          "ImuFactoryAccelerometerScale": {
            "gui_collapsed": false,
            "content": [
              0.0,
              0.0,
              0.0
            ]
          },
          "ConfigurationIncludesLighthouse20Features": false,
          "AdditionalRadioFeatures": 0,
          "ExpectedControllerType": "",
          "HmdTrackingStyle": 0,
          "DriverProvidedChaperoneVisibility": false,
          "HmdColumnCorrectionSettingPrefix": "",
          "CameraSupportsCompatibilityModes": false,
          "SupportsRoomViewDepthProjection": false,
          "DisplaySupportsMultipleFramerates": false,
          "DisplayColorMultLeft": {
            "gui_collapsed": false,
            "content": [
              0.0,
              0.0,
              0.0
            ]
          },
          "DisplayColorMultRight": {
            "gui_collapsed": false,
            "content": [
              0.0,
              0.0,
              0.0
            ]
          },
          "DisplaySupportsRuntimeFramerateChange": false,
          "DisplaySupportsAnalogGain": false,
          "DisplayMinAnalogGain": 0.0,
          "DisplayMaxAnalogGain": 0.0,
          "DashboardScale": 0.0,
          "IpdUIRangeMinMeters": 0.0,
          "IpdUIRangeMaxMeters": 0.0,
          "HmdSupportsHDCP14LegacyCompat": false,
          "HmdSupportsMicMonitoring": false,
          "DriverRequestedMuraCorrectionMode": 0,
          "DriverRequestedMuraFeatherInnerLeft": 0,
          "DriverRequestedMuraFeatherInnerRight": 0,
          "DriverRequestedMuraFeatherInnerTop": 0,
          "DriverRequestedMuraFeatherInnerBottom": 0,
          "DriverRequestedMuraFeatherOuterLeft": 0,
          "DriverRequestedMuraFeatherOuterRight": 0,
          "DriverRequestedMuraFeatherOuterTop": 0,
          "DriverRequestedMuraFeatherOuterBottom": 0,
          "AudioDefaultPlaybackDeviceId": "",
          "AudioDefaultRecordingDeviceId": "",
          "AudioDefaultPlaybackDeviceVolume": 0.0,
          "AudioSupportsDualSpeakerAndJackOutput": false,
          "AttachedDeviceId": "",
          "SupportedButtons": 0,
          "Axis0Type": 0,
          "Axis1Type": 0,
          "Axis2Type": 0,
          "Axis3Type": 0,
          "Axis4Type": 0,
          "ControllerRoleHint": 0,
          "FieldOfViewLeftDegrees": 0.0,
          "FieldOfViewRightDegrees": 0.0,
          "FieldOfViewTopDegrees": 0.0,
          "FieldOfViewBottomDegrees": 0.0,
          "TrackingRangeMinimumMeters": 0.0,
          "TrackingRangeMaximumMeters": 0.0,
          "ModeLabel": "",
          "CanWirelessIdentify": false,
          "Nonce": 0,
          "IconPathName": "",
          "NamedIconPathDeviceOff": "",
          "NamedIconPathDeviceSearching": "",
          "NamedIconPathDeviceSearchingAlert": "",
          "NamedIconPathDeviceReady": "",
          "NamedIconPathDeviceReadyAlert": "",
          "NamedIconPathDeviceNotReady": "",
          "NamedIconPathDeviceStandby": "",
          "NamedIconPathDeviceAlertLow": "",
          "NamedIconPathDeviceStandbyAlert": "",
          "OverrideContainer": 0,
          "UserConfigPath": "",
          "InstallPath": "",
          "HasDisplayComponent": false,
          "HasControllerComponent": false,
          "HasCameraComponent": false,
          "HasDriverDirectModeComponent": false,
          "HasVirtualDisplayComponent": false,
          "HasSpatialAnchorsSupport": false,
          "ControllerType": "",
          "ControllerHandSelectionPriority": 0,
          "variant": "TrackingSystemName"
        },
        "content": []
      },
      "tracking_ref_only": false,
      "enable_vive_tracker_proxy": false,
      "face_tracking": {
        "enabled": false,
        "content": {
          "gui_collapsed": true,
          "sources": {
            "combined_eye_gaze": true,
            "eye_tracking_fb": true,
            "face_tracking_fb": true,
            "eye_expressions_htc": true,
            "lip_expressions_htc": true
          },
          "sink": {
            "VrchatEyeOsc": {
              "port": 9000
            },
            "variant": "VrchatEyeOsc"
          }
        }
      },
      "body_tracking": {
        "enabled": false,
        "content": {
          "gui_collapsed": true,
          "sources": {
            "body_tracking_fb": {
              "enabled": true,
              "content": {
                "full_body": true
              }
            }
          },
          "sink": {
            "VrchatBodyOsc": {
              "port": 9000
            },
            "variant": "FakeViveTracker"
          },
          "tracked": true
        }
      }
    },
    "connection": {
      "stream_protocol": {
        "variant": "Tcp"
      },
      "client_discovery": {
        "enabled": true,
        "content": {
          "auto_trust_clients": false
        }
      },
      "on_connect_script": "",
      "on_disconnect_script": "",
      "avoid_video_glitching": true,
      "packet_size": 1400,
      "stream_port": 9944,
      "web_server_port": 8082,
      "osc_local_port": 9942,
      "server_send_buffer_bytes": {
        "Custom": 100000,
        "variant": "Maximum"
      },
      "server_recv_buffer_bytes": {
        "Custom": 100000,
        "variant": "Maximum"
      },
      "client_send_buffer_bytes": {
        "Custom": 100000,
        "variant": "Maximum"
      },
      "client_recv_buffer_bytes": {
        "Custom": 100000,
        "variant": "Maximum"
      },
      "max_queued_server_video_frames": 1024,
      "statistics_history_size": 256,
      "aggressive_keyframe_resend": false,
      "dscp": {
        "set": false,
        "content": {
          "ClassSelector": 7,
          "AssuredForwarding": {
            "class": 4,
            "drop_probability": {
              "variant": "Low"
            }
          },
          "variant": "ExpeditedForwarding"
        }
      }
    },
    "extra": {
      "steamvr_launcher": {
        "driver_launch_action": {
          "variant": "UnregisterOtherDriversAtStartup"
        },
        "open_close_steamvr_with_dashboard": false
      },
      "capture": {
        "startup_video_recording": false,
        "rolling_video_files": {
          "enabled": false,
          "content": {
            "duration_s": 5
          }
        },
        "capture_frame_dir": "/tmp"
      },
      "logging": {
        "show_notification_tip": true,
        "prefer_backtrace": false,
        "notification_level": {
          "variant": "Warning"
        },
        "client_log_report_level": {
          "enabled": true,
          "content": {
            "variant": "Error"
          }
        },
        "show_raw_events": {
          "enabled": false,
          "content": {
            "hide_spammy_events": false
          }
        },
        "log_to_disk": false,
        "log_tracking": false,
        "log_button_presses": false,
        "log_haptics": false,
        "debug_groups": {
          "server_impl": false,
          "client_impl": false,
          "server_core": false,
          "client_core": false,
          "connection": false,
          "sockets": false,
          "server_gfx": false,
          "client_gfx": false,
          "encoder": false,
          "decoder": false
        }
      },
      "patches": {
        "linux_async_compute": false,
        "linux_async_reprojection": false
      },
      "open_setup_wizard": false
    }
  }
}

SteamVR Version:

2.8.7

Install Type:

• Packaged (exe, deb, rpm, etc)
• [x ] Portable (zip)
• Source

OS Name and Version (winver on Windows or grep PRETTY_NAME /etc/os-release on most Linux distributions):

Windows 11, 22631.3880

This is not a feature request

[The-personified-devil]

Your gpu supports a max encoding resolution of 4096x4096 for h264. If you disable foveated rendering the frame will end up larger than that (with an per eye encoding width of 2592 you end up at a frame width of 5184). I have no clue what the gpu driver does to make the frame fit again, but it's likely causing the lag.

However decreasing the foveation center should not lead to a black screen, but I have no real clue what could be causing that. But you could provide a foveation configuration what you've confirmed leads to a black screen to aid in debugging.

You could try switching to h265 as that has larger encoding size of 8192x8192, so that should fit the uncompressed frame just fine.