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

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

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

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

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

--- Comment #9 from Roman Elshin  ---
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

--- Comment #8 from Christian K�nig  ---
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 #7 from Roman Elshin  ---
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 #6 from Roman Elshin  ---
Strange, but mpv --vo=vdpau works.

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

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--- Comment #5 from Christian K�nig  ---
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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--- Comment #4 from Roman Elshin  ---
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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--- Comment #3 from Christian K�nig  ---
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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Roman Elshin  changed:

   What|Removed |Added

 Attachment #122250|0   |1
is obsolete||

--- Comment #2 from Roman Elshin  ---
Created attachment 122252
  --> https://bugs.freedesktop.org/attachment.cgi?id=122252=edit
dmesg ssh

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

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--- Comment #1 from Roman Elshin  ---
Created attachment 122251
  --> https://bugs.freedesktop.org/attachment.cgi?id=122251=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

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 at lists.freedesktop.org
  Reporter: roman.elshin at gmail.com
QA Contact: dri-devel at lists.freedesktop.org

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