[Bug 69395] New: [DPM] Forcing lowest power state when no display is attached is bad because of OpenCL

[Bug 69395] New: [DPM] Forcing lowest power state when no display is attached is bad because of OpenCL

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=69395

          Priority: medium
            Bug ID: 69395
          Assignee: dri-devel@lists.freedesktop.org
           Summary: [DPM] Forcing lowest power state when no display is
                    attached is bad because of OpenCL
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: darkbasic@linuxsystems.it
          Hardware: Other
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Radeon
           Product: DRI

Actually I can't use my HD 7950 with KDE becuase of

https://bugs.freedesktop.org/show_bug.cgi?id=69341
https://bugs.freedesktop.org/show_bug.cgi?id=64297

so I attached my display the Intel HD 4000.

I still do bitcoin mining (OpenCL) on the 7950 and I notice it doesn't switch
to higher power states anymore (everything works flawlessly if I attach the
display to the 7950). Forcing the card to the lowest power state if no display
is attached is a bad behavious because of GPGPU computing.

I'm using Linux 3.12-pre (drm-next).

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[Bug 69395] [DPM] Forcing lowest power state when no display is attached is bad because of OpenCL

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https://bugs.freedesktop.org/show_bug.cgi?id=69395

--- Comment #1 from Alex Deucher <agd5f@yahoo.com> ---
Please attach your dmesg output when the radeon card is doing bitmining.

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[Bug 69395] [DPM] Forcing lowest power state when no display is attached is bad because of OpenCL

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=69395

--- Comment #2 from darkbasic <darkbasic@linuxsystems.it> ---
Created attachment 85884
  --> https://bugs.freedesktop.org/attachment.cgi?id=85884&action=edit
dmesg while bitmining

Here it is.

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[Bug 69395] [DPM] Forcing lowest power state when no display is attached is bad because of OpenCL

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=69395

--- Comment #3 from Alex Deucher <agd5f@yahoo.com> ---
What does the dpm debugfs output show when you are bitmining?  e.g.,
cat /sys/kernel/debug/dri/64/radeon_pm_info

Also does manually forcing the performance level to high help?  E.g.,
echo high > /sys/class/drm/card0/device/power_dpm_force_performance_level

Note, you may need to adjust the paths above depending on your system.

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[Bug 69395] [DPM] Forcing lowest power state when no display is attached is bad because of OpenCL

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=69395

--- Comment #4 from Alex Deucher <agd5f@yahoo.com> ---
Created attachment 85885
  --> https://bugs.freedesktop.org/attachment.cgi?id=85885&action=edit
possible fix

Does this patch help?

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[Bug 69395] [DPM] Forcing lowest power state when no display is attached is bad because of OpenCL

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=69395

--- Comment #5 from darkbasic <darkbasic@linuxsystems.it> ---
When mining I get lowest power level (power level 0).
Of course if I echo "high" into power_dpm_force_performance_level I get power
level 2 (the highest).
I will try attached patch tomorrow, thanks.

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[Bug 69395] [DPM] Forcing lowest power state when no display is attached is bad because of OpenCL

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=69395

--- Comment #6 from darkbasic <darkbasic@linuxsystems.it> ---
The fix worked, thanks.
I hope you can help me with my KDE issue too: it's a pity having to use the
Intel HD 4000 which doesn't even support my monitor's resolution (2560x1600).

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[Bug 69395] [DPM] Forcing lowest power state when no display is attached is bad because of OpenCL

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=69395

Mike Lothian <mike@fireburn.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mike@fireburn.co.uk

--- Comment #7 from Mike Lothian <mike@fireburn.co.uk> ---
Has this been pushed upstream?

Will this also fix the muxless render provider scenario too?

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[Bug 69395] [DPM] Forcing lowest power state when no display is attached is bad because of OpenCL

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=69395

--- Comment #8 from Mike Lothian <mike@fireburn.co.uk> ---
Or maybe I should ask does this big affect more than just SI?

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[Bug 69395] [DPM] Forcing lowest power state when no display is attached is bad because of OpenCL

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https://bugs.freedesktop.org/show_bug.cgi?id=69395

--- Comment #9 from Alex Deucher <agd5f@yahoo.com> ---
It's in my 3.13-next branch:
http://cgit.freedesktop.org/~agd5f/linux/log/?h=drm-next-3.13-wip

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[Bug 69395] [DPM] Forcing lowest power state when no display is attached is bad because of OpenCL

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https://bugs.freedesktop.org/show_bug.cgi?id=69395

--- Comment #10 from Vedran Miletić <vedran@miletic.net> ---
Was this fixed?

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[Bug 69395] [DPM] Forcing lowest power state when no display is attached is bad because of OpenCL

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https://bugs.freedesktop.org/show_bug.cgi?id=69395

Martin Peres <martin.peres@free.fr> changed:

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

--- Comment #11 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/381.

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