[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=97639

Michel Dänzer  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |WONTFIX

--- Comment #14 from Michel Dänzer  ---
Thanks for the follow-up. Resolving as WONTFIX, since we can't know if it's
fixed.

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=97639

--- Comment #13 from nuc...@hotmail.com ---
Hi, I don't know I have since switched my graphics card long ago

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=97639

--- Comment #12 from Michel Dänzer  ---
Is this still happening with current drivers?

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

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

https://bugs.freedesktop.org/show_bug.cgi?id=97639

--- Comment #11 from Michel Dänzer  ---
Alternatively, you can generate a diff between 4.8-rc8 and current drm-next-4.9
with

 git diff v4.8-rc8..8036617e92e3fad49eef9bbe868b661c58249aff

and apply that to 4.8.

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

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

https://bugs.freedesktop.org/show_bug.cgi?id=97639

--- Comment #10 from Michel Dänzer  ---
Can you just try the drm-next-4.9 tree? It's based on 4.8-rc8, so should be
pretty stable in general.

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

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

https://bugs.freedesktop.org/show_bug.cgi?id=97639

--- Comment #9 from nucrap at hotmail.com ---
Thanks, would you be so kind and compose me a patch with all commits that I
need and that I can apply on top of the kernel v4.8 sources (which I am
currently using)? So that I can test if the issue is fixed.

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

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https://bugs.freedesktop.org/show_bug.cgi?id=97639

--- Comment #8 from Alex Deucher  ---
yes, 4.9.

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

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https://bugs.freedesktop.org/show_bug.cgi?id=97639

--- Comment #7 from nucrap at hotmail.com ---
Ah I see, Linux v4.9 right?

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

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https://bugs.freedesktop.org/show_bug.cgi?id=97639

--- Comment #6 from nucrap at hotmail.com ---
Thanks. In which version will this commit be included?

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

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https://bugs.freedesktop.org/show_bug.cgi?id=97639

--- Comment #5 from Michel Dänzer  ---
https://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-next-4.9=325cbba19a32b172300fc87cd4da7c45c4f9e0ba
(and the changes before / after that one) may help for this.

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

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https://bugs.freedesktop.org/show_bug.cgi?id=97639

--- Comment #4 from nucrap at hotmail.com ---
Any ideas? This is extremely annoying :/

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

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https://bugs.freedesktop.org/show_bug.cgi?id=97639

--- Comment #3 from nucrap at hotmail.com ---
Created attachment 126362
  --> https://bugs.freedesktop.org/attachment.cgi?id=126362=edit
dmesg

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

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https://bugs.freedesktop.org/show_bug.cgi?id=97639

--- Comment #2 from Michel Dänzer  ---
Please attach the corresponding dmesg output.

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

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https://bugs.freedesktop.org/show_bug.cgi?id=97639

Michel Dänzer  changed:

   What|Removed |Added

 Attachment #126306|text/x-log  |text/plain
  mime type||

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

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https://bugs.freedesktop.org/show_bug.cgi?id=97639

--- Comment #1 from nucrap at hotmail.com ---
Forgot one info:
xf86-video-amdgpu v1.1.0 (glamor)

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[Bug 97639] Intermittent flickering artifacts with AMD R7 260x

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

https://bugs.freedesktop.org/show_bug.cgi?id=97639

Bug ID: 97639
   Summary: Intermittent flickering artifacts with AMD R7 260x
   Product: DRI
   Version: unspecified
  Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
  Severity: normal
  Priority: medium
 Component: DRM/AMDgpu
  Assignee: dri-devel at lists.freedesktop.org
  Reporter: nucrap at hotmail.com

Created attachment 126306
  --> https://bugs.freedesktop.org/attachment.cgi?id=126306=edit
my Xorg.0.log

Hi, I am using an MSI R7 260x OC with the new amdgpu driver. Everything seems
to run fine (I have yet to experience any crashes), however there constantly
flicker some artifacts on my screen.
In the Xorg.0.log I have noticed many suspicious error messages similar to
this:

AMDGPU(0): amdgpu_dri2_flip_event_handler: Pageflip completion event has
impossible msc 100169 < target_msc 100170

Looking at the description in the source code, it fits the bug I experience:
> Check for too small vblank count of pageflip completion, taking wraparound
> into account. This usually means some defective kms pageflip completion,
> causing wrong (msc, ust) return values and possible visual corruption.

I saw there was a similar bug (bug#91540), but it has been marked as fixed some
time ago.

My config:
Linux v4.7.2 (amdgpu, cik and powerplay enabled)
xf86-video-ati v7.7.0
mesa v12.0.1
xorg-drivers v1.17
xserver v1.17.4
KDE Plasma 5 (kwin)

If you need any further info please ask.

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