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[Bug 571002] Re: Mythtv/XvMC playback problems on Via CN400

 

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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