[Cypress/included] Permission issue with xvfb

[FrankReisenhofer]

We are running on a Jenkins in a CI/CD pipeline cypress tests using the latest docker image "cypress/included".

We get an issue with Xvfb. Any idea what is causing this issue and how to solve it?

Thanks for a hint

[1]

cypress run --component --browser chrome

[STARTED] Task without title.
[FAILED] Xvfb exited with a non zero exit code.
[FAILED]
[FAILED] There was a problem spawning Xvfb.
[FAILED]
[FAILED] This is likely a problem with your system, permissions, or installation of Xvfb.
[FAILED]
[FAILED] ----------
[FAILED]
[FAILED] Error: _XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
[FAILED] _XSERVTransMakeAllCOTSServerListeners: server already running
[FAILED] (EE)
[FAILED] Fatal server error:
[FAILED] (EE) Cannot establish any listening sockets - Make sure an X server isn't already running(EE)
[FAILED]
[FAILED] ----------
[FAILED]
[FAILED] Platform: linux-x64 (Debian - 12.9)
[FAILED] Cypress Version: 14.0.3
Xvfb exited with a non zero exit code.

There was a problem spawning Xvfb.

This is likely a problem with your system, permissions, or installation of Xvfb.

---

Error: _XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
_XSERVTransMakeAllCOTSServerListeners: server already running
(EE)
Fatal server error:
(EE) Cannot establish any listening sockets - Make sure an X server isn't already running(EE)

---

Platform: linux-x64 (Debian - 12.9)
Cypress Version: 14.0.3

[MikeMcC399]

@FrankReisenhofer

Error: _XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
_XSERVTransMakeAllCOTSServerListeners: server already running
(EE)
Fatal server error:
(EE) Cannot establish any listening sockets - Make sure an X server isn't already running(EE)

There are some comments in https://docs.cypress.io/app/continuous-integration/overview#Xvfb about problems with multiple X11 servers which may help you in your environment.

[MikeMcC399]

@FrankReisenhofer

Were you able to resolve your X11 issue under Jenkins? I don't believe that this would be a bug in the Cypress Docker image, so looking for your feedback.

[FrankReisenhofer]

@MikeMcC399 : So far we did not find a working solution. Also with the hints you provided . Main reason might be: We are not running the tests in parallel. But that is the prerequisite in your hint