Bug#801457: vlc: Segmentation fault playing a DVD with vdpau

2015-10-25 Thread Rémi Denis-Courmont
reassign 801457 mesa-vdpau-drivers
thanks

Hello,

On Sunday 11 October 2015 02:20:59 Arthur Marsh wrote:
> When I removed the vdpau libraries for the GPU in use (r600 libraries for
> RS780 GPU), the video played alright, but did give these error messages:
> 
> Failed to open VDPAU backend libvdpau_r600.so: cannot open shared object
> file: No such file or directory [mpeg2video @ 0x7fffc81b8660] ac-tex
> damaged at 1 0
> [mpeg2video @ 0x7fffc81b8660] skipped MB in I frame at 24 9
> [mpeg2video @ 0x7fffc81b8660] skipped MB in I frame at 17 18
> [mpeg2video @ 0x7fffc81b8660] ac-tex damaged at 32 25
> [mpeg2video @ 0x7fffc81b8660] ac-tex damaged at 13 32
(...)

The libavcodec software MPEG2 Video decoder is complaining that the bit stream 
is corrupt.

The R600 driver is probably not robust against invalid bit stream and just 
crashes instead. This is ostensibly a bug in the R600 driver (or in Mesa 
VDPAU), arguably a security issue too...

As to why this occurs while playing a DVD, I don´t. Either there is some 
physical problem, or the content is malformatted (some DVDs are deliberately 
made to crash open-source players, though typically rather targetting 
libdvdnav).

-- 
Rémi Denis-Courmont
http://www.remlab.net/



Bug#760043: weston-terminal: exits under load

2014-08-31 Thread Rémi Denis-Courmont
Package: weston
Version: 1.5.0-2
Severity: grave
Justification: causes non-serious data loss

Dear Maintainer,

When the Weston terminal outputs really fast, it pseudo-randomly ends
up vanishing and the process exits. For me, this is reproducible about
every third time running ls -lR /. 

On the console that started the compositor:

[11:54:52.890] launching '/usr/lib/weston/weston-desktop-shell'



Error sending request: Resource temporarily unavailable
child 7795 exited

From a quick investigation, this appears to be an unhandled error
without the libwayland-client marshaller. I guess that write congestion
on the socket to the compositor is not handled; if that is the case,
it is somewhat surprisingly and disturbingly naive.

Feel free to reassign to wayland.

Best regards,

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16.0-basile (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages weston depends on:
ii  adduser 3.113+nmu3
ii  libc6   2.19-10
ii  libcairo2   1.12.16-3
ii  libcolord2  1.2.1-1
ii  libdbus-1-3 1.8.6-2
ii  libdrm2 2.4.56-1
ii  libegl1-mesa10.2.6-1
ii  libegl1-mesa-drivers10.2.6-1
ii  libgbm1 10.2.6-1
ii  libgl1-mesa-glx [libgl1]10.2.6-1
ii  libgles2-mesa   10.2.6-1
ii  libglib2.0-02.40.0-5
ii  libglu1-mesa [libglu1]  9.0.0-2
ii  libinput0   0.2.0-2
ii  libjpeg88d1-1
ii  liblcms2-2  2.6-3
ii  libmtdev1   1.1.5-1
ii  libpam0g1.1.8-3.1
ii  libpango-1.0-0  1.36.6-1
ii  libpangocairo-1.0-0 1.36.6-1
ii  libpixman-1-0   0.32.6-3
ii  libpng12-0  1.2.50-2
ii  libsystemd-login0   208-8
ii  libudev1208-8
ii  libwayland-client0  1.5.0-1
ii  libwayland-cursor0  1.5.0-1
ii  libwayland-egl1-mesa [libwayland-egl1]  10.2.6-1
ii  libwayland-server0  1.5.0-1
ii  libx11-62:1.6.2-3
ii  libx11-xcb1 2:1.6.2-3
ii  libxcb-composite0   1.10-3
ii  libxcb-render0  1.10-3
ii  libxcb-shape0   1.10-3
ii  libxcb-shm0 1.10-3
ii  libxcb-xfixes0  1.10-3
ii  libxcb-xkb1 1.10-3
ii  libxcb1 1.10-3
ii  libxcursor1 1:1.1.14-1
ii  libxkbcommon0   0.4.1-2

Versions of packages weston recommends:
ii  libgl1-mesa-dri  10.2.6-1

weston suggests no packages.

-- no debconf information


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Bug#672972: Wheezy: VLC player can't play videos

2013-02-06 Thread Rémi Denis-Courmont
On Wed, 06 Feb 2013 11:18:19 +0100, Michel Dänzer daen...@debian.org
wrote:
 The fact that it works just fine when plain X11 output is forced in the

 preferences proves that X11 would work fine, but is not attempted with
 default
 settings.
 
 In other words, the problem lies with the OpenGL drivers. I have a
 similar
 problem on a laptop also with AMD/ATI chip (although mine has XVideo
 working
 fine so hardly a problem). This apparent regression is probably due to
 VLC
 using shaders for YUV color space conversion since version 2.0.0.
 
 I doubt VLC is at fault here, and I fail to see what else it could do.
 If
 shaders are so slow, the driver should not offer them in the first
place.
 
 Why do you think the problem is that 'shaders are slow'?

That's the main difference between OpenGL in VLC 1.1 and VLC 2.0, version
against which the bug was filed. It's also what I'm experiencing with my
own ATI chip.

In any case, since plain X11 works, I gather that VLC is able to decode
the video just fine and the CPU is powerful enough, even with the extra
color space conversion and resolution scaling for unaccelerated X11 output.

-- 
Rémi Denis-Courmont
Sent from my collocated server


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Bug#672972: Wheezy: VLC player can't play videos

2013-02-05 Thread Rémi Denis-Courmont
reassign 672972 xserver-xorg-video-radeon
retitle 672972 vlc: OpenGL output fails with Radeon HD 4200
thanks

Hello,

In absence of XVideo adapter, VLC will fall back to OpenGL. If OpenGL fails 
too, VLC will fall back to plain X11.

The fact that a few frames are shown proves that VLC is NOT trying to use a 
non-existent XVideo. There would be no frames at all then.

The fact that it works just fine when plain X11 output is forced in the 
preferences proves that X11 would work fine, but is not attempted with default 
settings.

In other words, the problem lies with the OpenGL drivers. I have a similar 
problem on a laptop also with AMD/ATI chip (although mine has XVideo working 
fine so hardly a problem). This apparent regression is probably due to VLC 
using shaders for YUV color space conversion since version 2.0.0.

I doubt VLC is at fault here, and I fail to see what else it could do. If 
shaders are so slow, the driver should not offer them in the first place.

-- 
Rémi Denis-Courmont
http://www.remlab.net/


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Bug#672972: Wheezy: VLC player can't play videos

2012-08-05 Thread Rémi Denis-Courmont
Le dimanche 5 août 2012 23:41:33 Reinhard Tartler, vous avez écrit :
 reassign 672972 xserver-xorg-video-radeon
 retitle 672972 No Xvideo extension on Radeon HD 4200
 stop
 
 Thanks for reporting back, I'm reassigning this bug to the package
 xserver-xorg-video-radeon.

Do you actually read what the VLC developers have to say, or should I stop 
following Debian bugs altogether?

Lack of XVideo driver is perfectly fine. As I said, like what a few hours ago, 
VLC will safely fall back to OpenGL in that case. Also I don't see how you 
infer the lack of XVideo driver from the bug report.

-- 
Rémi Denis-Courmont
http://www.remlab.net/
http://fi.linkedin.com/in/remidenis


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Bug#672972: Wheezy: VLC player can't play videos

2012-08-05 Thread Rémi Denis-Courmont
Le dimanche 5 août 2012 23:21:00 T Elcor, vous avez écrit :
  In any case, please attach the output of the command
  'xvinfo', 'xdpyinfo' and ideally also the file
  /var/log/Xorg.0.log. That would contain enough
  information for the maintainers of the respective
  driver package to investigate the lack of XV further.
 
 'xvinfo' and 'xdpyinfo' don't produce much of an output:
 
 # xvinfo
 No protocol specified
 xvinfo:  Unable to open display :0

You don't have any X server running at all. That's not interesting.

It should be evident, but you need to run xvinfo, glxinfo and xdpyinfo from 
within the X session.

 # xdpyinfo
 No protocol specified
 xdpyinfo:  unable to open display :0.

-- 
Rémi Denis-Courmont
http://www.remlab.net/
http://fi.linkedin.com/in/remidenis


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Bug#672972: Wheezy: VLC player can't play videos

2012-08-05 Thread Rémi Denis-Courmont
Le lundi 6 août 2012 00:07:45 Reinhard Tartler, vous avez écrit :
  Lack of XVideo driver is perfectly fine. As I said, like what a few hours
  ago, VLC will safely fall back to OpenGL in that case. Also I don't see
  how you infer the lack of XVideo driver from the bug report.
 
 Well, in the last mail you told me that the problem here was *broken*
 XVideo support.

I wrote that broken XVideo would be a problem.
I never claimed that it was or was not the specific problem.

Without the verbose VLC logs nor the (valid) xvinfo output, I am personally 
not able to make an informed guess.

-- 
Rémi Denis-Courmont
http://www.remlab.net/
http://fi.linkedin.com/in/remidenis


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