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[MarcRandolph <mrand@xxxxxxxxx>]

Glad to hear that resolved your issue.  Thank you for reporting back!

** Changed in: mythtv (Ubuntu)
   Importance: Undecided => Medium

** Changed in: mythtv (Ubuntu)
       Status: Incomplete => In Progress

** Changed in: mythtv (Ubuntu)
    Milestone: None => lucid-updates

-- 
Live tv using PVR-500 unviewable
https://bugs.launchpad.net/bugs/550173
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Status in “mythtv” package in Ubuntu: In Progress

Bug description:
Binary package hint: mythtv

I'm running MythBuntu 8.10 without a problem.
Upgrading to 9.04 or 9.10 causes my livetv to be very distorted and basically unviewable.

Today I attempted a new 10.04 beta install to see if anything has changed. My problem persists.

What I find strange is that when viewing my /dev/videox directly using VLC, I can view the channel perfectly.
However, when I first try to view a channel with MythTV and then try to view it using VLC, I get identical problems on the channel.

On the other input on the same card, if I haven't used/tried that in mythtv yet, I can use VLC again without a problem.
The errors VLC gives (when first viewing the channel with mythtv and then VLC):
[0xb6b01ae0] main input error: ES_OUT_SET_(GROUP_)PCR  is called too late, increasing pts_delay to 816 ms
[0xb6b01ae0] main input error: ES_OUT_RESET_PCR called
[0xb6b08fa8] libmpeg2 decoder error: DpbUnlinkPicture called on an invalid picture
[0xb6b08fa8] libmpeg2 decoder error: DpbUnlinkPicture called on an invalid picture
[0xb6b01ae0] main input error: ES_OUT_SET_(GROUP_)PCR  is called too late, increasing pts_delay to 1196 ms
[0xb6b01ae0] main input error: ES_OUT_RESET_PCR called
[0xb6b08fa8] libmpeg2 decoder error: DpbUnlinkPicture called on an invalid picture
[0xb6b08fa8] libmpeg2 decoder error: DpbUnlinkPicture called on an invalid picture
[0xb6b01ae0] main input error: ES_OUT_SET_(GROUP_)PCR  is called too late, increasing pts_delay to 2471 ms
[0xb6b01ae0] main input error: ES_OUT_RESET_PCR called
[0xb6b08fa8] libmpeg2 decoder error: DpbUnlinkPicture called on an invalid picture
[0xb6b08fa8] libmpeg2 decoder error: DpbUnlinkPicture called on an invalid picture
[0xb6b01ae0] main input error: ES_OUT_SET_(GROUP_)PCR  is called too late, increasing pts_delay to 4932 ms
[0xb6b01ae0] main input error: ES_OUT_RESET_PCR called
[0xb6b08fa8] libmpeg2 decoder error: DpbUnlinkPicture called on an invalid picture
[0xb6b08fa8] libmpeg2 decoder error: DpbUnlinkPicture called on an invalid picture
[0xb6b01ae0] main input error: ES_OUT_SET_(GROUP_)PCR  is called too late, increasing pts_delay to 11157 ms
[0xb6b01ae0] main input error: ES_OUT_RESET_PCR called
[0xb6b08fa8] libmpeg2 decoder error: DpbUnlinkPicture called on an invalid picture
[0xb6b08fa8] libmpeg2 decoder error: DpbUnlinkPicture called on an invalid picture
[0xb6b01ae0] main input error: ES_OUT_SET_(GROUP_)PCR  is called too late, increasing pts_delay to 21711 ms
[0xb6b01ae0] main input error: ES_OUT_RESET_PCR called
[0xb6b08fa8] libmpeg2 decoder error: DpbUnlinkPicture called on an invalid picture
[0xb6b08fa8] libmpeg2 decoder error: DpbUnlinkPicture called on an invalid picture

I would think this is not driver or kernel related, since playing TV directly from VLC works. Once I try mythtv, I can't play TV (decently) using any program from that point, untill a system reboot.

ProblemType: Bug
Architecture: i386
Date: Sun Mar 28 12:44:35 2010
DistroRelease: Ubuntu 10.04
InstallationMedia: Mythbuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
Installed_mythplugins-dbg: 0.0
Installed_mythtv-dbg: 0.0
MythTVDirectoryPermissions: lrwxrwxrwx 1 root root 14 2010-03-28 11:59 /var/lib/mythtv -> /media/mythtv/
NonfreeKernelModules: nvidia
Package: mythtv 0.23.0~trunk23623-0ubuntu1
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-17.26-generic-pae 2.6.32.10+drm33.1
SourcePackage: mythtv
Uname: Linux 2.6.32-17-generic-pae i686