[Bug 116251] New: radeon 5a427809cd9143bef89ee3110f45e84f37484218 "drm/radeon: disable runtime pm on PX laptop" makes dGPU never stop

[Bug 116251] New: radeon 5a427809cd9143bef89ee3110f45e84f37484218 "drm/radeon: disable runtime pm on PX laptop" makes dGPU never stop

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=116251

            Bug ID: 116251
           Summary: radeon 5a427809cd9143bef89ee3110f45e84f37484218
                    "drm/radeon: disable runtime pm on PX laptop" makes
                    dGPU never stop
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.5.1
          Hardware: Intel
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: eugene.shalygin@gmail.com
        Regression: No

Clevo P177SM, these two GPUs:

00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor
Integrated Graphics Controller (rev 06)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Neptune XT [Radeon HD 8970M] (rev ff)

With kernel 4.5.1 the Radeon card is always on. Reverting
5a427809cd9143bef89ee3110f45e84f37484218 fixes the problem.

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[Bug 116251] radeon 5a427809cd9143bef89ee3110f45e84f37484218 "drm/radeon: disable runtime pm on PX laptop" makes dGPU never stop

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=116251

Eugene Shalygin <eugene.shalygin@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Regression|No                          |Yes

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[Bug 116251] radeon 5a427809cd9143bef89ee3110f45e84f37484218 "drm/radeon: disable runtime pm on PX laptop" makes dGPU never stop

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=116251

--- Comment #1 from Michel Dänzer <michel@daenzer.net> ---
Duplicate of bug 115321.

(In reply to Eugene Shalygin from comment #0)
> With kernel 4.5.1 the Radeon card is always on. Reverting
> 5a427809cd9143bef89ee3110f45e84f37484218 fixes the problem.

I did warn Greg KH about this regression, but it looks like he backported the
change anyway. :(

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[Bug 116251] radeon 5a427809cd9143bef89ee3110f45e84f37484218 "drm/radeon: disable runtime pm on PX laptop" makes dGPU never stop

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=116251

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexdeucher@gmail.com

--- Comment #2 from Alex Deucher <alexdeucher@gmail.com> ---
Please attach your full dmesg output.

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[Bug 116251] radeon 5a427809cd9143bef89ee3110f45e84f37484218 "drm/radeon: disable runtime pm on PX laptop" makes dGPU never stop

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=116251

--- Comment #3 from Eugene Shalygin <eugene.shalygin@gmail.com> ---
Created attachment 212691
  --> https://bugzilla.kernel.org/attachment.cgi?id=212691&action=edit
dmesg

dmesg with the commit reverted

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[Bug 116251] radeon 5a427809cd9143bef89ee3110f45e84f37484218 "drm/radeon: disable runtime pm on PX laptop" makes dGPU never stop

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=116251

--- Comment #4 from Alex Deucher <alexdeucher@gmail.com> ---
Created attachment 212711
  --> https://bugzilla.kernel.org/attachment.cgi?id=212711&action=edit
possible fix

Please apply this patch on top of the patches from bug 115321.

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[Bug 116251] radeon 5a427809cd9143bef89ee3110f45e84f37484218 "drm/radeon: disable runtime pm on PX laptop" makes dGPU never stop

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=116251

--- Comment #5 from Eugene Shalygin <eugene.shalygin@gmail.com> ---
With the quirk it works, thank you.

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[Bug 116251] radeon 5a427809cd9143bef89ee3110f45e84f37484218 "drm/radeon: disable runtime pm on PX laptop" makes dGPU never stop

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=116251

Kertesz Laszlo <laszlo.kertesz@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |laszlo.kertesz@gmail.com

--- Comment #6 from Kertesz Laszlo <laszlo.kertesz@gmail.com> ---
The issue is present on Dell Latitude E6540 (Debian Testing installed).

00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor
Integrated Graphics Controller (rev 06)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Mars
XTX [Radeon HD 8790M] (rev ff)

Some more discussions about this here:
https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/open-source-amd-linux/867738-kernel-4-5-radeon-runpm-not-working-properly-on-debian-testing

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[Bug 116251] radeon 5a427809cd9143bef89ee3110f45e84f37484218 "drm/radeon: disable runtime pm on PX laptop" makes dGPU never stop

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=116251

--- Comment #7 from Alex Deucher <alexdeucher@gmail.com> ---
The patch has been reverted:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bfaddd9fc8ac048b99475f000dbef6f08297417f
and will be reverted in stable branches as well.

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[Bug 116251] radeon 5a427809cd9143bef89ee3110f45e84f37484218 "drm/radeon: disable runtime pm on PX laptop" makes dGPU never stop

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=116251

Eugene Shalygin <eugene.shalygin@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |CODE_FIX

--- Comment #8 from Eugene Shalygin <eugene.shalygin@gmail.com> ---
Works in 4.6.0

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