* [Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1
[not found] <bug-99323-502@http.bugs.freedesktop.org/>
@ 2017-01-09 2:26 ` bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=99323
Michel Dänzer <michel@daenzer.net> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|xorg-driver-ati@lists.x.org |dri-devel@lists.freedesktop
| |.org
Product|xorg |DRI
Component|Driver/Radeon |DRM/Radeon
QA Contact|xorg-team@lists.x.org |
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[not found] <bug-99323-502@http.bugs.freedesktop.org/>
2017-01-09 2:26 ` [Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1 bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=99323
--- Comment #4 from Alex Deucher <alexdeucher@gmail.com> ---
Please attach your dmesg output with radeon.dpm=1 explicitly set.
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2017-01-09 2:26 ` [Bug 99323] White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1 bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=99323
--- Comment #5 from kartik <kapoorkkartik@gmail.com> ---
Created attachment 128884
--> https://bugs.freedesktop.org/attachment.cgi?id=128884&action=edit
explicit dmesg setting with curruption
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From: bugzilla-daemon @ 2017-01-11 9:38 UTC (permalink / raw)
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https://bugs.freedesktop.org/show_bug.cgi?id=99323
--- Comment #6 from kartik <kapoorkkartik@gmail.com> ---
Created attachment 128885
--> https://bugs.freedesktop.org/attachment.cgi?id=128885&action=edit
explicit dmesg without forcing
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https://bugs.freedesktop.org/show_bug.cgi?id=99323
--- Comment #7 from kartik <kapoorkkartik@gmail.com> ---
Created attachment 128886
--> https://bugs.freedesktop.org/attachment.cgi?id=128886&action=edit
Without explictly setting dpm and without curruption
forced high performance mode
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https://bugs.freedesktop.org/show_bug.cgi?id=99323
--- Comment #8 from kartik <kapoorkkartik@gmail.com> ---
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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https://bugs.freedesktop.org/show_bug.cgi?id=99323
--- Comment #9 from Alex Deucher <alexdeucher@gmail.com> ---
Setting it explicitly just adds some additional debugging info in the dmesg
output.
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https://bugs.freedesktop.org/show_bug.cgi?id=99323
Alex Deucher <alexdeucher@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #128816|text/x-log |text/plain
mime type| |
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https://bugs.freedesktop.org/show_bug.cgi?id=99323
--- Comment #10 from Alex Deucher <alexdeucher@gmail.com> ---
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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https://bugs.freedesktop.org/show_bug.cgi?id=99323
--- Comment #11 from kartik <kapoorkkartik@gmail.com> ---
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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https://bugs.freedesktop.org/show_bug.cgi?id=99323
--- Comment #12 from kartik <kapoorkkartik@gmail.com> ---
Forcing dpm to high performance mode resolves the problem for now.
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https://bugs.freedesktop.org/show_bug.cgi?id=99323
Martin Peres <martin.peres@free.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |MOVED
Status|NEW |RESOLVED
--- Comment #13 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
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You can subscribe and participate further through the new bug through this link
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