After an evening puzzling with this i found the following:
- The startup problems (distorted console) are solved when i use the karmic
2.6.31 based kernel
- The XvMC problems seem to be due to a wrong setting of the playback engine in
mythtv (Standard XvMC i.s.o. Via XvMC). How this setting got changed is beyond
me, perhaps it happened in the database upgrade.
Which means that my main problem, the distorted video, is now solved.
The distorted console with the 2.6.32 based kernel remains.
** Tags added: apport-collected
** Description changed:
I can't seem to get decent playback output using the openchrome xorg driver
in combination with XvMC on my Via Epia SP8000 board (CN400).
Mythtv/XvMC Playback worked fine with Karmic. (and also on an earlier
version, not sure if it was gutsy or jaunty)
The symptoms i see:
- Jerky video playback
- Deinterlace problems (one field shown in top half of the screen, and 2nd
field in the bottom half).
(this seems to be intermittent, thus causing the screen to jump around a
lot).
In general, lucid seems to have problems with this graphics hardware, the
boot splash image is also distorted, and when i remove the 'splash' and 'quiet'
flags from the boot options, it will start booting ok, but halfway through the
process it will jump into a strange mode, much asif the top 2/3 of the screen
shows one deinterlace field, and the bottom 2/3 the other.
(note that this system is connected to a CRT based TV via the composite
output)
Initial Xorg would not display properly either, i had to create a
Xorg.conf file.
mythtv-frontend:
Installed: 0.23.0+fixes24158-0ubuntu2
Candidate: 0.23.0+fixes24158-0ubuntu2
Version table:
*** 0.23.0+fixes24158-0ubuntu2 0
500 http://archive.ubuntu.com/ubuntu/ lucid/multiverse Packages
100 /var/lib/dpkg/status
xserver-xorg-video-openchrome:
Installed: 1:0.2.904+svn827-1
Candidate: 1:0.2.904+svn827-1
Version table:
*** 1:0.2.904+svn827-1 0
500 http://archive.ubuntu.com/ubuntu/ lucid/main Packages
100 /var/lib/dpkg/status
libxvmc1:
Installed: 2:1.0.5-1ubuntu1
Candidate: 2:1.0.5-1ubuntu1
Version table:
*** 2:1.0.5-1ubuntu1 0
500 http://archive.ubuntu.com/ubuntu/ lucid/main Packages
100 /var/lib/dpkg/status
+ ---
+ Architecture: i386
+ DistroRelease: Ubuntu 10.04
+ DkmsStatus: Error: [Errno 2] No such file or directory
+ Package: xserver-xorg-video-openchrome 1:0.2.904+svn827-1
+ PackageArchitecture: i386
+ ProcCmdLine: ro initrd=initrd.img quiet splash nbdport=2002 BOOT_IMAGE=vmlinuz
+ ProcEnviron:
+ LANG=en_US.UTF-8
+ SHELL=/bin/bash
+ ProcVersionSignature: Ubuntu 2.6.31-16.53-generic
+ Tags: lucid lucid
+ Uname: Linux 2.6.31-16-generic i686
+ UserGroups:
+
+ system:
+ distro: Ubuntu
+ codename: lucid
+ architecture: i686
+ kernel: 2.6.31-16-generic
--
Mythtv/XvMC playback problems on Via CN400
https://bugs.launchpad.net/bugs/571002
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which is subscribed to xserver-xorg-video-openchrome in ubuntu.
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