[Bug 2085944] Re: drm/xe: Fix LNL getting wedged after idling

This bug is awaiting verification that the linux/6.11.0-17.17 kernel in
-proposed solves the problem. Please test the kernel and update this bug
with the results. If the problem is solved, change the tag
'verification-needed-oracular-linux' to 'verification-done-oracular-
linux'. If the problem still exists, change the tag 'verification-
needed-oracular-linux' to 'verification-failed-oracular-linux'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


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** Tags added: kernel-spammed-oracular-linux-v2 verification-needed-oracular-linux

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https://bugs.launchpad.net/bugs/2085944

Title:
drm/xe: Fix LNL getting wedged after idling

Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Oracular:
Fix Committed

Bug description:
filed upstream as
https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/2902

[Impact]

Leaving a system with Lunar Lake idle for an hour or so will end up
with the display driver getting wedged requiring a reboot.

This is fixed upstream by this commit:

commit 22ef43c78647dd37b0dafe2182b8650b99dbbe59
Author: Badal Nilawar <badal.nilawar@intel.com>
Date: Thu Oct 17 16:44:10 2024 +0530

    drm/xe/guc/ct: Flush g2h worker in case of g2h response timeout

but in order to apply cleanly, we also need a set of three patches
which are already in v6.11.5

[Test case]

Boot a patched kernel on LNL, leave it idle for a couple of
hours/overnight and check that it's still working normally.

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