[Bug 94511] rv730 agp reproducable uvd gpu hangs in fullscreen

[Bug 94511] rv730 agp reproducable uvd gpu hangs in fullscreen

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https://bugs.freedesktop.org/show_bug.cgi?id=94511

            Bug ID: 94511
           Summary: rv730 agp reproducable uvd gpu hangs in fullscreen
           Product: Mesa
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: roman.elshin@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 122250
  --> https://bugs.freedesktop.org/attachment.cgi?id=122250&action=edit
dmesg

With some movies gpu hangs are quite reproducable while playing with "mpv
hwdec=vdpau vo=vdpau" in fullscreen (1920x1200), in the same time "mpv
hwdec=vdpau vo=opengl" work fine there.
For me it is quite easy to reproduce this with such encoded video:
ffmpeg -i big_buck_bunny_1080p_surround.avi -vf scale=1024:576 -c:v libx264
-preset medium -x264-params keyint_min=23 -c:a copy output_1024_576.mkv
Mostly it requires less then one minutes of playing in full screen for GPU
hangs.
I suppose that problem is rv730 specific, as I can not reproduce it with rv740
(but it PCIe and work with CPU which is mutch faster).

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[Bug 94511] rv730 agp reproducable uvd gpu hangs in fullscreen

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https://bugs.freedesktop.org/show_bug.cgi?id=94511

--- Comment #1 from Roman Elshin <roman.elshin@gmail.com> ---
Created attachment 122251
  --> https://bugs.freedesktop.org/attachment.cgi?id=122251&action=edit
Xorg.log

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[Bug 94511] rv730 agp reproducable uvd gpu hangs in fullscreen

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https://bugs.freedesktop.org/show_bug.cgi?id=94511

Roman Elshin <roman.elshin@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #122250|0                           |1
        is obsolete|                            |

--- Comment #2 from Roman Elshin <roman.elshin@gmail.com> ---
Created attachment 122252
  --> https://bugs.freedesktop.org/attachment.cgi?id=122252&action=edit
dmesg ssh

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[Bug 94511] rv730 agp reproducable uvd gpu hangs in fullscreen

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https://bugs.freedesktop.org/show_bug.cgi?id=94511

--- Comment #3 from Christian König <deathsimple@vodafone.de> ---
Most likely the name of the problem here is AGP.

We already tried a couple of different workarounds but it is quite hard to get
fully stable with UVD.

Try to disable AGP with radeon.agpmode=-1 and see if that helps.

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[Bug 94511] rv730 agp reproducable uvd gpu hangs in fullscreen

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https://bugs.freedesktop.org/show_bug.cgi?id=94511

--- Comment #4 from Roman Elshin <roman.elshin@gmail.com> ---
No it does not change it, I think it more likely size alignments related issue.
If I change monitors video mode to 1366x768 (16/9 same as video 1024/576) it
works in fullscreen too. More clearly would be a 1920x1080, but I was unable to
set cvt 1920 1080 60 mode (screen corruption).

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[Bug 94511] rv730 agp reproducable uvd gpu hangs in fullscreen

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https://bugs.freedesktop.org/show_bug.cgi?id=94511

--- Comment #5 from Christian König <deathsimple@vodafone.de> ---
Ok, well that's a bit strange.

Does "mpv vo=vdpau" works? E.g. VDPAU output, but with software decoding?

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[Bug 94511] rv730 agp reproducable uvd gpu hangs in fullscreen

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https://bugs.freedesktop.org/show_bug.cgi?id=94511

--- Comment #6 from Roman Elshin <roman.elshin@gmail.com> ---
Strange, but mpv --vo=vdpau works.

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[Bug 94511] rv730 agp reproducable uvd gpu hangs in fullscreen

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https://bugs.freedesktop.org/show_bug.cgi?id=94511

--- Comment #7 from Roman Elshin <roman.elshin@gmail.com> ---
with 1920x1080 it also hangs (hwdec=vdpau vo=vdpau).

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[Bug 94511] rv730 agp reproducable uvd gpu hangs in fullscreen

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https://bugs.freedesktop.org/show_bug.cgi?id=94511

--- Comment #8 from Christian König <deathsimple@vodafone.de> ---
A complete shoot in the dark, but please try to disable semaphores by just
returning false from uvd_v2_2_semaphore_emit() in
drivers/gpu/drm/radeon/uvd_v2_2.c.

Otherwise I'm running out of ideas what that could be.

The only other explanation I have is that the added load of UVD+displaying at a
certain resolution is crashing the GFX block. But I have no idea why that
should happen.

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[Bug 94511] rv730 agp reproducable uvd gpu hangs in fullscreen

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https://bugs.freedesktop.org/show_bug.cgi?id=94511

--- Comment #9 from Roman Elshin <roman.elshin@gmail.com> ---
bool uvd_v2_2_semaphore_emit(struct radeon_device *rdev,
                             struct radeon_ring *ring,
                             struct radeon_semaphore *semaphore,
                             bool emit_wait)
{
        return false;
}

Same things.

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[Bug 94511] rv730 agp reproducable uvd gpu hangs in fullscreen

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https://bugs.freedesktop.org/show_bug.cgi?id=94511

GitLab Migration User <gitlab-migration@fdo.invalid> changed:

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

--- Comment #10 from GitLab Migration User <gitlab-migration@fdo.invalid> ---
-- 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/mesa/mesa/issues/581.

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