USB device not working after restart, but appears after the laptop is suspended and woken up #5
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I'm confused. while so the modem appears via its PCI interface (only)? On the other hand which means that the modem is usable. |
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I have a possibly related issue: even when |
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Thanks @DDvO for sharing details. After fresh reboot, I don't see the USB device, so I'm not even seeing the modem devices: After fresh reboot: But I see the WWAN as the PCI device still: My kernel also complains about a missing signing certificate during
From my First I was wondering if my ACPI works, but it seems ok: |
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I think the whole issue is in the ACPI reset call. Following the original xmm2usb script, I was able to issue successfully: But the ACPI call is failing: with this error in So I think the suspect/resume basically does what this ACPI call should do. But I still don't know why, the |
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@juhovh I have tried suspending etc and banging on all sorts of the ACPI space with no luck. On the other thread [(https://github.com/xmm7360/xmm7360-usb-modeswitch/issues/2)] there is my DSDT decompiled. I'll keep trying but if I've missed anything obvious it would be nice to know. |
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@neurotensin Do you have a link to the DKMS scripts? I could add them here as well. @kamilsamaj-accolade I'm not really that surprised if ACPI reset doesn't work for all systems, ACPI is occasionally a bit of a mess. The |
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@juvoh I pasted my mini "tutorial" on the other thread - feel free to add it - I also did one for acpi_call ,simply regexp $MODULE_NAME and it works. All though both modules need to add "depmod -A" in the Makefile's "install" clause (after the install), as it's need to get the symbols into the kernel. |
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To make this module work correctly it needs to handle powerstates -I found a curious error message on the other thread If you could add something to module so that when it sleeps/goes off , it doesn't wake up - the module keeps the PCI address but also propagates a wakeup cascade - ideally it would stay off and perhaps the USB interface would be activated as power is restored. |
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Lenovo Thinkpad P53 here. Not having much luck: Device only shows as PCI device. Not /dev/ttyAMA devices found. Suspend/resume not help. |
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@paaland I have the same results - I suspect the P53 has a more enterprise devices has some hotplug/docking features that wakes everything up. But the good news is I have isolated the following:
It might be possible to change the PCI routing in the DSDT to permanently disconnect the 00:53 link so it survives a suspend, but I am no expert, though I know where to look (PD06 or AR06 depending on interrupt choices) I've ordered some Kapton tape as a final backup... |
Hi @juhovh ,
first and foremost, BIG thanks for your project, my WWAN is finally working! I'm just having issues of not seeing the USB device right after reboot, but I have to suspend the laptop and wake it up.
That's what I did:
I followed the steps from @DDvO's issue:
After restart, the module gets loaded correctly, I can see it with:
But I still see the device being in PCI mode:
After I suspend and wake up the laptop, the USB device appears:
and of course the
lspcidoesn't see the device anymore:Just for clarity, I unlocked the FCC and switched to USB with:
Would you know why I don't see it immediately after the restart, please? I'm guessing it's a wrong order of loading modules but I don't know how to troubleshoot that.
Thanks a lot.
Kamil
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