Bug#945055: linux: CPU runs at considerably higher temperatures)
Control: found -1 3.16.81-1
Control: found -1 4.19.87-1
Control: found -1 5.4-1~exp1
Control: found -1 5.5~rc5-1~exp1
Control: tags -1 + patch
Control: forwarded -1 https://gitlab.freedesktop.org/drm/intel/issues/614
Hey.
The offending patch is apparently:
drm/i915/gen8+: Add RC6 CTX corruption WA
which is contained in:
$ git log --oneline --all | grep "drm/i915/gen8+: Add RC6 CTX
corruption WA"
5013e6d917ac drm/i915/gen8+: Add RC6 CTX corruption WA
2248a28384fe drm/i915/gen8+: Add RC6 CTX corruption WA
d4360736a7c0 drm/i915/gen8+: Add RC6 CTX corruption WA
255ed51599de drm/i915/gen8+: Add RC6 CTX corruption WA
1a5a64e0bde8 drm/i915/gen8+: Add RC6 CTX corruption WA
00194ecfb32c drm/i915/gen8+: Add RC6 CTX corruption WA
284d38667f7e drm/i915/gen8+: Add RC6 CTX corruption WA
7e34f4e4aad3 drm/i915/gen8+: Add RC6 CTX corruption WA
$ git describe --contains 5013e6d917ac 2248a28384fe d4360736a7c0
255ed51599de 1a5a64e0bde8 00194ecfb32c 284d38667f7e 7e34f4e4aad3
v3.16.77~12
v5.5-rc1~28^2~19
v5.3.11~20
v4.19.84~28
v4.14.154~28
v4.9.201~2
v4.4.201~2
v5.4-rc8~28^2~1
The issue seems to affect *all* the i915/gen8+ GPUs, preventing them to
enter sleep states.
It seems a patch is available at
https://gitlab.freedesktop.org/drm/intel/issues/614
and according to
https://gitlab.freedesktop.org/drm/intel/issues/953#note_385488 these
seem to be the final versions(?).
Apparently it's however kinda stuck to get them in a stable release
(not really sure why), so could you possibly cherry pick the patch,
since that issue is really a major showstopper for all affected people.
Cheers,
Chris.
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