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[Michael Martin-Smucker <mlmartin13@xxxxxxxxx>]

Sorry, my last post probably wasn't terribly helpful.  Here are some
more details (and I'll gladly provide more as needed):

Ubuntu: 10.10
Platform: AMD64
Linux kernel: 2.6.35-22-generic
Graphics card: AMD Radeon x1300
Graphics driver: xserver-xorg-video-radeon 1:6.13.1-1ubuntu5
TV Tuner: SiliconDust HDHomeRun (single tuner)

MythTV info:
MythTV Version   : 26437
MythTV Branch    : branches/release-0-23-fixes
Network Protocol : 23056
Library API      : 0.23.1.201000710-1
QT Version       : 4.7.0
Options compiled in:
 linux debug using_oss using_alsa using_pulse using_jack using_pulseoutput using_backend using_dvb using_firewire using_frontend using_glx_proc_addr_arb using_hdhomerun using_hdpvr using_iptv using_ivtv using_joystick_menu using_libudev using_lirc using_mheg using_opengl_video using_opengl_vsync using_qtdbus using_qtwebkit using_v4l using_x11 using_xrandr using_xv using_xvmc using_xvmc_vld using_xvmcw using_bindings_perl using_bindings_python using_opengl using_vdpau using_ffmpeg_threads using_libavc_5_3 using_live using_mheg

-- 
mythtv crashes on some HD channels, crashes causes user to be logged out
https://bugs.launchpad.net/bugs/660833
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Status in “mythtv” package in Ubuntu: Confirmed

Bug description:
Binary package hint: mythtv

This bug began after updating to 10.10, a workaround if to change the viewing settings from CPU-- to anything that does not invoke XvMC. 

When changing to certain channels myth crashes with no error given and I was just logged out completely. Uninstalling proprietary nvidia drivers also stopped the problem but it returns upon reinstallation of the drivers.

ProblemType: Crash
DistroRelease: Ubuntu 10.10
Package: mythtv-frontend 0.23.1+fixes26437-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
AssertionMessage: *** glibc detected *** /usr/bin/mythfrontend.real: corrupted double-linked list: 0x098173a0 ***
Date: Fri Oct 15 09:05:12 2010
ExecutablePath: /usr/bin/mythfrontend.real
Installed_mythplugins-dbg: 0.0
Installed_mythtv-dbg: 0.0
ProcCmdline: /usr/bin/mythfrontend.real
ProcCwd: /home/michael
ProcEnviron:
 LANG=en_AU.utf8
 SHELL=/bin/bash
Signal: 6
SourcePackage: mythtv
StacktraceTop:
 __kernel_vsyscall ()
 raise () from /lib/libc.so.6
 abort () from /lib/libc.so.6
 ?? () from /lib/libc.so.6
 ?? () from /lib/libc.so.6
Title: mythfrontend.real assert failure: *** glibc detected *** /usr/bin/mythfrontend.real: corrupted double-linked list: 0x098173a0 ***
UserGroups: adm admin cdrom dialout lpadmin mythtv plugdev sambashare vboxusers