Comment 0 for bug 2025195

Revision history for this message
AceLan Kao (acelankao) wrote :

[Impact]
The HDMI monitor doesn't work, no events while plug/unplug then cable.

[Fix]
From the bug report[1], skip the return workaround the issue, so I created the DMI quirk to list affected platforms.

Intel is submitting patches[2][3] to fix the issue, but it requires to
backport huge drm structure changes, too. As there is no regression
found with this workaround, it's safer to use the DMI quirk to handle
this issue, and wait Intel's fix[2][3] to be available in v6.5 kernel.

1. https://gitlab.freedesktop.org/drm/intel/-/issues/7709
2. https://patchwork.freedesktop.org/series/117641/
3. https://patchwork.freedesktop.org/series/114200/

[Test]
Verified by me, FE, and ODM.

[Where problems could occur]
I have no idea what might happen, so only make the workaround avaiable on the listed platforms. So far, no regressions have been observed with plug/unplug, switch modes, reboot, and suspend tests.