[Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=99323

Martin Peres  changed:

   What|Removed |Added

 Resolution|--- |MOVED
 Status|NEW |RESOLVED

--- Comment #13 from Martin Peres  ---
-- 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/768.

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[Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=99323

--- Comment #12 from kartik  ---
Forcing dpm to high performance mode resolves the problem for now.

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[Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=99323

--- Comment #11 from kartik  ---
The problem disappears after switching to a lower resolution like 1280x1024 or
800x600 but comes back as soon as i revert to 1920x1080. Please look into this
as it seems a large number of previous generation cards are affected by the
issue. Lots of people who'll be trying out any new distro on any older computer
for basic tasks like web browsing, youtube videos, etc are affected.

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[Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=99323

--- Comment #10 from Alex Deucher  ---
Looks like the mclk switching isn't finishing within the vblank period.  Do you
have the problem with any other display modes or just 1920x1080?

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[Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=99323

Alex Deucher  changed:

   What|Removed |Added

 Attachment #128816|text/x-log  |text/plain
  mime type||

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[Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=99323

--- Comment #9 from Alex Deucher  ---
Setting it explicitly just adds some additional debugging info in the dmesg
output.

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[Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99323

--- Comment #8 from kartik  ---
First I Have explicitly set radeon.dpm = 1 which did not solve the problem.
Then I have explicitly set radeon.dpm = 1 and forced High performance mode. It
did not solve the problem either.

Then finally I did not explicitly set radeon.dpm = 1 but it was enabled
implicitly and i forced High performance mode and no more currupton.

Curruption is gone after forcing high performance mode in dpm or disabling dpm
with radeon.dpm = 0 . 

Please look into this.

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[Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99323

--- Comment #7 from kartik  ---
Created attachment 128886
  --> https://bugs.freedesktop.org/attachment.cgi?id=128886=edit
Without explictly setting dpm and without curruption

forced high performance mode

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[Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99323

--- Comment #6 from kartik  ---
Created attachment 128885
  --> https://bugs.freedesktop.org/attachment.cgi?id=128885=edit
explicit dmesg without forcing

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[Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99323

--- Comment #5 from kartik  ---
Created attachment 128884
  --> https://bugs.freedesktop.org/attachment.cgi?id=128884=edit
explicit dmesg setting with curruption

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[Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1

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https://bugs.freedesktop.org/show_bug.cgi?id=99323

--- Comment #4 from Alex Deucher  ---
Please attach your dmesg output with radeon.dpm=1 explicitly set.

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[Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99323

Michel Dänzer  changed:

   What|Removed |Added

   Assignee|xorg-driver-ati at lists.x.org |dri-devel at 
lists.freedesktop
   ||.org
Product|xorg|DRI
  Component|Driver/Radeon   |DRM/Radeon
 QA Contact|xorg-team at lists.x.org   |

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