[Bug 85320] New: GPU hangs using hardware acceleration

[Bug 85320] New: GPU hangs using hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

            Bug ID: 85320
           Summary: GPU hangs using hardware acceleration
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: ken20001@ukr.net

With new kernel 3.18RC1 trying hardware acceleraton I discovered GPU hangs.
Running 'mpv -vo vdpau --hwdec vdpau filename' starts to play movie and all it
seems ok. But if we try to rewind forward/backward first it, playing, hangs.
Than all system hangs. Switching to another VT in dmesg appears:

[drm:r600_ib_test] *ERROR* radeon: fence wait failed (-35).
[drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on GFX ring (-35).

Switching back to VT7 we can watch that image appears and disappears.
Restarting ligtdm service allowed me to log in to account. But anyway all
system switched to XRender and no OpenGL until I fully reboot.

mpv --version
mpv git-f5a19f6 (C) 2000-2014 mpv/MPlayer/mplayer2 projects
 built on 2014-10-18T11:58:42
ffmpeg library versions:
   libavutil       54.7.100
   libavcodec      56.1.100
   libavformat     56.4.101
   libswscale      3.0.100
   libavfilter     5.1.100
   libavresample   2.1.0

vdpauinfo 0.1-1
mesa-vdpau-drivers 10.4~git1410211930.ef280c~gd~t
libgl1-mesa-glx 10.4~git1410211930.ef280c~gd~t

Kubuntu 14.04.1
Linux: 3.18RC1 x86_64
Graphics: Radeon HD2600 XT

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[Bug 85320] GPU hangs using hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

Eugene <ken20001@ukr.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|medium                      |high
                 CC|                            |ken20001@ukr.net
           Hardware|Other                       |x86-64 (AMD64)
                 OS|All                         |Linux (All)
           Severity|normal                      |major

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[Bug 85320] GPU hangs using hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #1 from Alex Deucher <agd5f@yahoo.com> ---
If this is a regression can you narrow down which component (kernel, mesa,
etc.) caused the problem and bisect?  Please also attach your xorg log and
dmesg output.

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[Bug 85320] GPU hangs using hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #2 from Eugene <ken20001@ukr.net> ---
I suspect this is the same as:
https://bugs.freedesktop.org/show_bug.cgi?id=85323

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[Bug 85320] GPU hangs using hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #3 from Eugene <ken20001@ukr.net> ---
(In reply to Alex Deucher from comment #1)
> If this is a regression can you narrow down which component (kernel, mesa,
> etc.) caused the problem and bisect?  Please also attach your xorg log and
> dmesg output.

And yes, I would do bisect if somebody explain how to. But I don't know.

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[Bug 85320] GPU hangs using hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #4 from Eugene <ken20001@ukr.net> ---
Created attachment 108252
  --> https://bugs.freedesktop.org/attachment.cgi?id=108252&action=edit
Xorg.log

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[Bug 85320] GPU hangs using hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #5 from Eugene <ken20001@ukr.net> ---
Created attachment 108253
  --> https://bugs.freedesktop.org/attachment.cgi?id=108253&action=edit
dmesg

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[Bug 85320] GPU hangs using hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #6 from Alex Deucher <agd5f@yahoo.com> ---
Google for "git bisect howto".  There are lots of good tutorials.

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[Bug 85320] GPU hangs using hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #7 from Eugene <ken20001@ukr.net> ---
(In reply to Alex Deucher from comment #6)
> Google for "git bisect howto".  There are lots of good tutorials.
What exactly I shoud bisect, mesa ? Where to get it ?

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[Bug 85320] GPU hangs using hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #8 from Alex Deucher <agd5f@yahoo.com> ---
(In reply to Eugene from comment #7)
> (In reply to Alex Deucher from comment #6)
> > Google for "git bisect howto".  There are lots of good tutorials.
> What exactly I shoud bisect, mesa ? Where to get it ?

Can you narrow down whether it was a mesa update or a kernel update that caused
the regression?  You'll need to do that first.  Once you've figured that out,
you can bisect the appropriate component (mesa or kernel).  Mesa git info is
here:
http://cgit.freedesktop.org/mesa/mesa/
kernel git info:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/

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[Bug 85320] GPU hangs using hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #9 from Eugene <ken20001@ukr.net> ---
The thing is that Linux 3.18 is the first kernel with which hardwear
acceleration for HD2600 became possible. So I don't think the regression takes
place.

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[Bug 85320] GPU hangs using hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #10 from Eugene <ken20001@ukr.net> ---
Recently I checked Mesa 10.1.3 stable. The same result: system hangs, display
becomes dark. No possibility to switch to any VT.
So, as I understood, this is not a regression. This is just new feature (for my
graphics adapter) that comes with Linux 3.18. And it is very unstable.

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[Bug 85320] [RV630] GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|GPU hangs using hardware    |[RV630] GPU hangs using UVD
                   |acceleration                |hardware acceleration

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[Bug 85320] [RV630] GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #11 from Christian König <deathsimple@vodafone.de> ---
You need the bleeding edge Mesa code to get video accerleration working on
HD2600.

But even then the hardware on the HD2600 is so buggy that it is really tricky
to get this working right.

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[Bug 85320] [RV630] GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #12 from Eugene <ken20001@ukr.net> ---
Anyway I'm ready to test anything that possible.

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[Bug 85320] [RV630] GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #13 from Eugene <ken20001@ukr.net> ---
I was able to save logs after playing video with VLC with VDPAU and hardware
decoding turned on. There are also backtrace in Xorg log file. Please, look in
attachment.

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[Bug 85320] [RV630] GPU hangs using UVD hardware acceleration

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[-- Attachment #1.1: Type: text/plain, Size: 576 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=85320

Eugene <ken20001@ukr.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #108252|0                           |1
        is obsolete|                            |

--- Comment #14 from Eugene <ken20001@ukr.net> ---
Created attachment 108772
  --> https://bugs.freedesktop.org/attachment.cgi?id=108772&action=edit
Xorg.log file with backtrace

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[Bug 85320] [RV630] GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

Eugene <ken20001@ukr.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #108772|Xorg.log file with          |Xorg.log with backtrace
        description|backtrace                   |

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[Bug 85320] [RV630] GPU hangs using UVD hardware acceleration

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[-- Attachment #1.1: Type: text/plain, Size: 557 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=85320

Eugene <ken20001@ukr.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #108253|0                           |1
        is obsolete|                            |

--- Comment #15 from Eugene <ken20001@ukr.net> ---
Created attachment 108773
  --> https://bugs.freedesktop.org/attachment.cgi?id=108773&action=edit
dmesg log

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[Bug 85320] [RV630] GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #16 from Eugene <ken20001@ukr.net> ---
Created attachment 108774
  --> https://bugs.freedesktop.org/attachment.cgi?id=108774&action=edit
syslog

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[Bug 85320] [RV630] GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

Eugene <ken20001@ukr.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #108773|dmesg log                   |dmesg
        description|                            |

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[Bug 85320] [RV630] GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #17 from Daniele <daniele.rogora@gmail.com> ---
I see the same happening here with a HD4200 (RS880) GPU.

I tried with:

- kernel 3.18rc3
- latest radeon ucode firmware files from the 23rd of August
- updated mesa, xserver and libs from the oibaf ubuntu ppa

I observed the same behavior: video starts well for a second, then the image
freeze (but mouse cursor is still alive) and I can't do anything, not even
switching to another vt. After a while the screen becomes black.

In the meantime I can hear the sound of the video correctly, and indeed if I
log in with ssh from another pc everything is working well; still xserver
doesn't work until a reboot is performed.

I attach a piece of the dmesg log taken from the ssh session right after the
video was played where the GPU hang is reported. Xorg doesn't log any error.

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[Bug 85320] [RV630] GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #18 from Daniele <daniele.rogora@gmail.com> ---
Created attachment 109807
  --> https://bugs.freedesktop.org/attachment.cgi?id=109807&action=edit
dmesg log, gpu hangs

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[Bug 85320] [RV630] GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #19 from Eugene <ken20001@ukr.net> ---
This is quite strange cause my xorg log shows a lot of error messages.

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[Bug 85320] [RV630] and RS880 GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

D Rhodes <l-1@dbr.me.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[RV630] GPU hangs using UVD |[RV630] and RS880 GPU hangs
                   |hardware acceleration       |using UVD hardware
                   |                            |acceleration

--- Comment #20 from D Rhodes <l-1@dbr.me.uk> ---
There was a VDPAU fix in MPV 0.6.1 that fixed this kind of lockup on my
hardware: RS880G.

My videos are all 1080i50 H.264 recordings from DVB-S2 broadcasts of various
channels. Since they are just chunks of transport stream, I think that lockups
when starting a video and when seeking would be similar.

Also I have ~oibaf MESA from 4th October, the first with the VAAPI state
tracker, and I tested that too. Here is a summary of what I found, with MPV
0.6.1

--hwdec=vdpau --vo=vdpau does not lock up the GPU but...

--hwdec=vdpau --vo=vdpau --deinterlace locks the GPU immediately.

I assume deinterlace will not work until there is a proper workaround for the
frame based output. UVD is not useful for me without deinterlace.

--hwdec=vaapi --vo=vaapi locks up the GPU quite often when starting to play a
video, similar to vdpau on MPV 0.6.0

--hwdec=vaapi --vo=opengl does not lock up the GPU but there is quite a lot of
coloured or speckled picture corruption on my video.

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[Bug 85320] [RV630] and RS880 GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #21 from Eugene <ken20001@ukr.net> ---
There is a VLC and using it with HW acceleration turned on also locks up GPU.

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #22 from Daniele <daniele.rogora@gmail.com> ---
My previous tests were done with VLC and Gstreamer.

I tried with MPV 0.6.2 as well but GPU still hangs for me. 

The video I use is a 1080p, so no deintetlacing needed, I never tried to use
it.

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--- Comment #23 from Eugene <ken20001@ukr.net> ---
Also tried mpv 0.6.2 and also GPU hangs.

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--- Comment #24 from Daniele <daniele.rogora@gmail.com> ---
Ok I've just learnt something interesting: suspending kwin desktop effects make
everything work flawlessy here.

I tried mpv, vlc and even the flash plugin and hw accel works well; I tried
also seeking in the video without any problem.

Now we should find out if the problems is only there with kwin or even with
other desktop environments.

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--- Comment #25 from Daniele <daniele.rogora@gmail.com> ---
Update: there are still some videos (taken with my smartphone) causing the GPU
to hang as it did before, both with VLC and mpv, but I confirm that I can now
play youtube with hw acceleration.

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--- Comment #26 from Eugene <ken20001@ukr.net> ---
Linux 3.19RC1. Nothing's changed.

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Eugene <ken20001@ukr.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[RV630] and RS880 GPU hangs |[RV630] and [RS880] GPU
                   |using UVD hardware          |hangs using UVD hardware
                   |acceleration                |acceleration

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--- Comment #27 from Elvis Fox <foks.ua@gmail.com> ---
Created attachment 111184
  --> https://bugs.freedesktop.org/attachment.cgi?id=111184&action=edit
UVD hang  on RV620

Can confirm the same thing on RV620.
dmesg log attached

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--- Comment #28 from Elvis Fox <foks.ua@gmail.com> ---
As for me, disabling kwin effect does not change anything

Also looked briefly through the attachments, it seems that me and Daniele are
reporting different issue than OP.

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--- Comment #29 from Christian König <deathsimple@vodafone.de> ---
(In reply to Eugene from comment #26)
> Linux 3.19RC1. Nothing's changed.

You don't need to test every new kernel version. I'm going to leave a note here
if I find time to work on this issue.

On the other hand if you want to get your hands dirty and try a fe things than
I can give you dirrections on what could it be (but you need to get into the
code yourself).

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--- Comment #30 from Eugene <ken20001@ukr.net> ---
(In reply to Christian König from comment #29)
> (In reply to Eugene from comment #26)
> > Linux 3.19RC1. Nothing's changed.
> 
> You don't need to test every new kernel version. I'm going to leave a note
> here if I find time to work on this issue.
> 
> On the other hand if you want to get your hands dirty and try a fe things
> than I can give you dirrections on what could it be (but you need to get
> into the code yourself).

Thanks, it would be great if you'll decide to work on this issue. If you'll
need any any additional info, any test I'm ready to help with it. It's a pity
but I'm not a programmer, so I can't write a code. But any other things that
would help I'll do all I can.

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

Eugene <ken20001@ukr.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[RV630] and [RS880] GPU     |[RV620][RV630][RS880] GPU
                   |hangs using UVD hardware    |hangs using UVD hardware
                   |acceleration                |acceleration

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--- Comment #31 from Maxim Kachur <mcdebugger@duganet.ru> ---
I think I have the same on RS880 here (HD4290).
Mesa 10.3.5, libdrm 2.4.58, kernel 3.18.1, R600_rlm.bin + RS780_uvd.bin
firmware from August 2014.
Testing with mplayer + vdpau.

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--- Comment #32 from Maxim Kachur <mcdebugger@duganet.ru> ---
Created attachment 111799
  --> https://bugs.freedesktop.org/attachment.cgi?id=111799&action=edit
journalctl dump for uvd/vdpau crash

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--- Comment #33 from russianneuromancer@ya.ru ---
Same issue with RS880M. Sometimes hang on very beginning (before first frame
appear on the screen) and sometimes after one/few/many attempts to rewind.

Tested with Linux 3.19, latest Mesa snapshot from Oibaf PPA, and mpv 0.8.

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--- Comment #34 from Erik <mytrackeracount@gmail.com> ---
Same issue with a HD4290 (RS880). My motherboard has AM3+ socket so is not
obsolete hardware, it's support uvd2 and the last AMD procesors. It would be
nice to fix it. If you need some help i can dirty my hands too :)

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Taner <tanertas@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tanertas@yahoo.com

--- Comment #35 from Taner <tanertas@yahoo.com> ---
Created attachment 114623
  --> https://bugs.freedesktop.org/attachment.cgi?id=114623&action=edit
Failed UVD playback session with RS780 mainboard

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--- Comment #36 from Taner <tanertas@yahoo.com> ---
Comment on attachment 114623
  --> https://bugs.freedesktop.org/attachment.cgi?id=114623
Failed UVD playback session with RS780 mainboard

I can confirm the same happening my bleeding edge Arch linux system with my
RS780/HD3200 mainboard.

Kernel 3.19.2
Mesa 10.5.1
libdrm 2.4.60
xf86-video-ati 7.5.0

I tried UVD acceleration with mpv, vdr/softhddevice and flashplugin via vdpau
output enabled. Screen freezes if I seek forward/back and If I adjust playback
window size (eg. going to fullscreen).

I can switch the VT consoles after X session freezes. I can create a new
working X session after killing the previous freezed X session but playback
video using GPU is not possible anymore. I have to reboot the system.

dmesg attached.

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--- Comment #37 from Christian König <deathsimple@vodafone.de> ---
Created attachment 115398
  --> https://bugs.freedesktop.org/attachment.cgi?id=115398&action=edit
Something to test

Just an idea I had recently what this issue could be. Please test the attached
patch and see if it works or not.

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--- Comment #38 from Erik <mytrackeracount@gmail.com> ---
I patched a 4.0.1 kernel on a Debian 8 for testing ..... i will test it with
several movies :)

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--- Comment #39 from Nicola Mori <nicolamori@aol.com> ---
(In reply to Christian König from comment #37)
> Created attachment 115398 [details] [review]
> Something to test
> 
> Just an idea I had recently what this issue could be. Please test the
> attached patch and see if it works or not.

The patch made things on my system even worse. Before, playing a movie with VLC
and VDPAU enabled resulted in random screen freezes after some time, while with
the patched kernel the freeze happens immediately as I start playing, all the
times.

Tested with Mobility Radeon HD3400 (RV620) on ArchLinux 64 bit with linux-ck
4.0.1, mesa 10.5.4, mesa-vdpau 10.5.4 and libvdpau 1.1.

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--- Comment #40 from Erik <mytrackeracount@gmail.com> ---
I got a black screen at the beggining, and console show this:

Radeon 0000:01:05.0 ring 5 stalled for more than .....secs

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Christian König <deathsimple@vodafone.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #115398|0                           |1
        is obsolete|                            |
                 CC|                            |deathsimple@vodafone.de

--- Comment #41 from Christian König <deathsimple@vodafone.de> ---
Created attachment 115475
  --> https://bugs.freedesktop.org/attachment.cgi?id=115475&action=edit
More to test.

Interesting, attached is another patch you could test.

It just disables using UVD semaphores for now.

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--- Comment #42 from Erik <mytrackeracount@gmail.com> ---
Works like a charm :)

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--- Comment #43 from Daniele <daniele.rogora@gmail.com> ---
I confirm that your last patch makes things work here too

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--- Comment #44 from Nicola Mori <nicolamori@aol.com> ---
The new patch works also for me. A couple of questions, Christian: does the
patch remove some features? Do you think to mainline it or rather implement a
different fix now that the problem seems to be better defined? Thanks.

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--- Comment #45 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to Nicola Mori from comment #44)
> The new patch works also for me. A couple of questions, Christian: does the
> patch remove some features? Do you think to mainline it or rather implement
> a different fix now that the problem seems to be better defined? Thanks.

It disables hw semaphores for UVD1, but it's likely they were buggy on that
early hw anyway.  It shouldn't affect UVD functionality.  The driver just uses
a different method for synchronizing between rings.

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--- Comment #46 from Christian König <deathsimple@vodafone.de> ---
(In reply to Nicola Mori from comment #44)
> The new patch works also for me. A couple of questions, Christian: does the
> patch remove some features? Do you think to mainline it or rather implement
> a different fix now that the problem seems to be better defined? Thanks.

Instead of submitting the commands to the hardware directly with semaphores to
sync between the GFX and UVD engines we block until the dependent task is
completed.

That's rather bad in a couple of different cases, for example doing 3D gaming
and video playback at the same time.

What essentially happens is instead of keeping UVD and GFX busy all the same
time (and only occasionally block one engine waiting the other one) you do it
more like this:

1. Run UVD job.
2. Wait for UVD to finish.
3. Run GFX.
4. Wait for GFX to finish.
5. Run UVD
6. Wait for UVD to finish.
....

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--- Comment #47 from Nicola Mori <nicolamori@aol.com> ---
Thanks for the clarification, Christian. Could it also impact other cases, e.g.
a desktop environment with hardware accelerated visual effects? Playing a movie
while resizing or dragging a window should result in a usage pattern of GFX and
UVD that is similar to your example with movie and 3D game. I did some
experiments with my KDE desktop with OpenGL 2.0 and 3.1 visual effects, but I
didn't notice any lag (maybe it's a too light workload to show any issue).

Given the comment by Alex about the possibly buggy UVD1 hardware semaphores,
the overall satisfactory performance of the patch and the old hardware affected
by the bug I would guess that this patch likely is the final fix for this bug.
If so, when will it be mainlined (approx.)? Thanks.

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

--- Comment #48 from Christian König <deathsimple@vodafone.de> ---
(In reply to Nicola Mori from comment #47)
> Thanks for the clarification, Christian. Could it also impact other cases,
> e.g. a desktop environment with hardware accelerated visual effects?

Not really, that is way to less load to cause any real trouble. 3D games on the
other hand are a different story.

> Given the comment by Alex about the possibly buggy UVD1 hardware semaphores,
> the overall satisfactory performance of the patch and the old hardware
> affected by the bug I would guess that this patch likely is the final fix
> for this bug. If so, when will it be mainlined (approx.)?

Alex merged it into hist drm-fixes-4.1 branch and I put a CC stable on it. So
if everything works well it will show up in 4.1 and is then backported to the
stable kernel versions used by distributions.

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[Bug 85320] [RV620][RV630][RS880] GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

zimous <zimous@matfyz.cz> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |zimous@matfyz.cz

--- Comment #49 from zimous <zimous@matfyz.cz> ---
Hello, I have the same problem with RV730.  The "disable semaphores ..." patch
makes it better, but not completely, UVD is still not usable.  Please follow me
to bug #67994 which seems more approprite for RV730.

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[Bug 85320] [RV620][RV630][RS880] GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

Christian König <deathsimple@vodafone.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |arthur.marsh@internode.on.n
                   |                            |et

--- Comment #50 from Christian König <deathsimple@vodafone.de> ---
*** Bug 88152 has been marked as a duplicate of this bug. ***

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[Bug 85320] [RV620][RV630][RS880] GPU hangs using UVD hardware acceleration

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https://bugs.freedesktop.org/show_bug.cgi?id=85320

Christian König <deathsimple@vodafone.de> changed:

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

--- Comment #51 from Christian König <deathsimple@vodafone.de> ---
(In reply to zimous from comment #49)
> Hello, I have the same problem with RV730.  The "disable semaphores ..."
> patch makes it better, but not completely, UVD is still not usable.  Please
> follow me to bug #67994 which seems more approprite for RV730.

Please add a new bug report for this, cause as you already wrote on bug #67994
your bug has different symptoms than this one here.

Closing this bug as the problem seems to be solved now.

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