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[Bug Watch Updater <979509@xxxxxxxxxxxxxxxxxx>]

** Changed in: mythtv
       Status: Unknown => New

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https://bugs.launchpad.net/bugs/979509

Title:
  mythfrontend crashes on WatchTV

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  Triaged
Status in MythTV:
  New

Bug description:
  When I click on Watch TV mythfrontend quits and a popup in the top
  right of the screen says there was a segmentation fault error code 139
  and restarts mythfrontend.

  This was not the case after a clean install of Mythbuntu 11.10 before
  updating (after installing drivers for capture card described below)
  it would display tv without any sound.

  I am using a Hauppauge WinTV-HVR-950 as the capture card. I followed the instruction near the bottom of http://www.linuxtv.org/wiki/index.ph..._WinTV-HVR-950 . I used the file from here for the pl script http://www.kernel.org/doc/Documentat...ract_xc3028.pl 
  I was not able to get sox -r 48000 -w -c 2 -t ossdsp /dev/dsp1 -t ossdsp /dev/dsp command to work but the rest of it was okay

  
  For ref. similar explanation at  
  http://ubuntuforums.org/showthread.php?t=1954841

  ProblemType: Crash
  DistroRelease: Ubuntu 11.10
  Package: mythtv-frontend 2:0.25.0+fixes.20120410.1f5962a-0ubuntu0mythbuntu3
  ProcVersionSignature: Ubuntu 3.0.0-17.30-generic 3.0.22
  Uname: Linux 3.0.0-17-generic x86_64
  NonfreeKernelModules: nvidia
  .var.log.mythtv.mythavtest.log:
   
  .var.log.mythtv.mythccextractor.log:
   
  .var.log.mythtv.mythcommflag.log:
   
  .var.log.mythtv.mythfilldatabase.log:
   
  .var.log.mythtv.mythjobqueue.log:
   
  .var.log.mythtv.mythlcdserver.log:
   
  .var.log.mythtv.mythmediaserver.log:
   
  .var.log.mythtv.mythmetadatalookup.log:
   
  .var.log.mythtv.mythpreviewgen.log:
   
  .var.log.mythtv.mythshutdown.log:
   
  .var.log.mythtv.mythtranscode.log:
   
  .var.log.mythtv.mythtv.setup.log:
   
  .var.log.mythtv.mythutil.log:
   
  .var.log.mythtv.mythwelcome.log:
   
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  CrashDB: mythbuntu
  Date: Wed Apr 11 22:03:34 2012
  ExecutablePath: /usr/bin/mythfrontend.real
  InstallationMedia: Mythbuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  Installed_mythtv_dbg: 2:0.25.0+fixes.20120410.1f5962a-0ubuntu0mythbuntu3
  ProcCmdline: /usr/bin/mythfrontend.real --syslog local7
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7f2daa33a3f3 <DecoderBase::PosMapFromEnc()+307>:	mov    -0x18(%rcx),%r12
   PC (0x7f2daa33a3f3) ok
   source "-0x18(%rcx)" (0xffffffffffffffe8) not located in a known VMA region (needed readable region)!
   destination "%r12" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
   DecoderBase::PosMapFromEnc (this=0x2091cf0) at decoderbase.cpp:245
   DecoderBase::SyncPositionMap (this=0x2091cf0) at decoderbase.cpp:322
   NuppelDecoder::OpenFile (this=0x2091cf0, rbuffer=<optimized out>, novideo=<optimized out>, testbuf=<optimized out>) at nuppeldecoder.cpp:623
   MythPlayer::OpenFile (this=0x1c249f0, retries=<optimized out>) at mythplayer.cpp:964
   MythPlayer::JumpToProgram (this=0x1c249f0) at mythplayer.cpp:2620
  Title: mythfrontend.real crashed with SIGSEGV in DecoderBase::PosMapFromEnc()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm admin cdrom dialout lpadmin mythtv plugdev sambashare video
  XsessionErrors:
   (update-manager:1814): Gtk-WARNING **: Attempting to add a widget with type aptdaemon+gtk3widgets+AptProgressDialog to a GtkWindow, but as a GtkBin subclass a GtkWindow can only contain one widget at a time; it already contains a widget of type GtkVBox
   (update-manager:1814): Gtk-WARNING **: Attempting to add a widget with type aptdaemon+gtk3widgets+AptProgressDialog to a GtkWindow, but as a GtkBin subclass a GtkWindow can only contain one widget at a time; it already contains a widget of type GtkVBox

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