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["Thomas A. F. Thorne" <713551@xxxxxxxxxxxxxxxxxx>]

I switched to a new machine.  Ran a similar set of code and everything
was OK.  I was using the same USB TV Recorder and the same version of
MythBuntu.  My apologies for not replying to this thread earlier.

I beleiver this can be rejected on the basis that it was a hardware
fault with my system.

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https://bugs.launchpad.net/bugs/713551

Title:
  Xorg freeze; system locks and accepts no input, keyboard lights go out
  when key is touched

Status in MythTV:
  New
Status in nvidia-graphics-drivers-173 package in Ubuntu:
  New

Bug description:
  Binary package hint: xorg

  I have a rather old machine running a MythTV backend using a WinTV
  NOVA T USB2 (93000 Rev B8A2) and it seems that randomly the system
  will lock up completely.  I have done my best to work out if the
  freeze occurs when recording or performing some function of the
  mythtv-backend but based on the logs it seems that it can occur during
  a recording, during a database update or when there is no activity at
  all.

  I do have BOINC installed and running but disabling that so it does
  not run at startup didn't seem to stop the problem; as the freeze
  occurs randomly every few days I had to wait about a week but the
  system did lock up without BOINC running at all.  My next fiddle was
  to change the priority of the mythtvbackend process to be -3; this
  seemed to reduce the frequency of the freeze occurring but it may have
  been psychological as the occurance rate is so drawn out anyway.

  One thing which triggered a freeze was using the ubuntu-bug program,
  before the report that I am using to make this bug entry the system
  froze while ubuntu-bug was off collecting information about the
  problem.  Again the mythtvbackend was running so I cannot discount
  this just being coincidence.

  Another symptom, which may just be how the thing works, is that the
  NOVA T USB2 strays in "warm" mode during the crash and if I use the
  PC's reset button to restart the system.  When the system comes up
  like this the NOVA T is unresponsive and the red light on the from of
  it remains lit.  If I power down the machine or pull the USB cord out
  from the NOVA T then plug it back in after several seconds while the
  bios boot splash screen is going then the red LED extinguishes and the
  device works fine once Ubuntu has booted.

  This is all a little scattered and probably unhelpful but I have tried
  to hunt down answers to this problem myself and have run out of ideas
  what to do next.  Please do let me know if there are any further
  diagnostics that may be helpful.

  lsb_release -rd
  Description:	Ubuntu 10.04.1 LTS
  Release:	10.04

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: xorg 1:7.5+5ubuntu1
  ProcVersionSignature: Ubuntu 2.6.32-28.55-generic 2.6.32.27+drm33.12
  Uname: Linux 2.6.32-28-generic i686
  NonfreeKernelModules: nvidia
  Architecture: i386
  CheckboxSubmission: 5d0602330b5d44cd5ded7b4846756bb0
  CheckboxSystem: daed2f3d6643b4a84b4520a2427f8c2b
  Date: Sat Feb  5 08:45:59 2011
  InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-28-generic root=UUID=f8cbb2f7-5b7c-46db-94bc-1802d312a175 ro quiet splash
  ProcEnviron:
   LANG=en_GB.utf8
   SHELL=/bin/bash
  SourcePackage: xorg
  Symptom: display
  Title: Xorg freeze
  dmi.bios.date: 08/16/2004
  dmi.bios.vendor: Phoenix Technologies, LTD
  dmi.bios.version: 6.00 PG
  dmi.board.name: MS-6570E
  dmi.board.vendor: MICRO-STAR INTERNATIONAL CO., LTD
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd08/16/2004:svn:pn:pvr:rvnMICRO-STARINTERNATIONALCO.,LTD:rnMS-6570E:rvr:cvn:ct3:cvr:
  system:
   distro:             Ubuntu
   codename:           lucid
   architecture:       i686
   kernel:             2.6.32-28-generic
  --- 
  Architecture: i386
  CheckboxSubmission: 5d0602330b5d44cd5ded7b4846756bb0
  CheckboxSystem: daed2f3d6643b4a84b4520a2427f8c2b
  CurrentDmesg:
   [   26.607216] agpgart-nvidia 0000:00:00.0: AGP 3.0 bridge
   [   26.607241] agpgart-nvidia 0000:00:00.0: putting AGP V3 device into 8x mode
   [   26.607326] nvidia 0000:01:00.0: putting AGP V3 device into 8x mode
   [   29.232041] eth0: no IPv6 routers present
   [  104.758599] ondemand governor failed, too long transition latency of HW, fallback to performance governor
  DistroRelease: Ubuntu 10.04
  InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
  NonfreeKernelModules: nvidia
  Package: nvidia-graphics-drivers-173 (not installed)
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-28-generic root=UUID=f8cbb2f7-5b7c-46db-94bc-1802d312a175 ro quiet splash
  ProcEnviron:
   LANG=en_GB.utf8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.32-28.55-generic 2.6.32.27+drm33.12
  Tags: lucid lucid
  Uname: Linux 2.6.32-28-generic i686
  UserGroups: adm admin cdrom dialout lpadmin mythtv plugdev sambashare
  dmi.bios.date: 08/16/2004
  dmi.bios.vendor: Phoenix Technologies, LTD
  dmi.bios.version: 6.00 PG
  dmi.board.name: MS-6570E
  dmi.board.vendor: MICRO-STAR INTERNATIONAL CO., LTD
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd08/16/2004:svn:pn:pvr:rvnMICRO-STARINTERNATIONALCO.,LTD:rnMS-6570E:rvr:cvn:ct3:cvr:
  system:
   distro:             Ubuntu
   codename:           lucid
   architecture:       i686
   kernel:             2.6.32-28-generic
  --- 
  Architecture: i386
  CheckboxSubmission: 5d0602330b5d44cd5ded7b4846756bb0
  CheckboxSystem: daed2f3d6643b4a84b4520a2427f8c2b
  DistroRelease: Ubuntu 10.04
  InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
  NonfreeKernelModules: nvidia
  Package: nvidia-graphics-drivers-173 (not installed)
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-28-generic root=UUID=f8cbb2f7-5b7c-46db-94bc-1802d312a175 ro quiet splash
  ProcEnviron:
   LANG=en_GB.utf8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.32-28.55-generic 2.6.32.27+drm33.12
  Tags: lucid lucid
  Uname: Linux 2.6.32-28-generic i686
  UserGroups: adm admin cdrom dialout lpadmin mythtv plugdev sambashare
  dmi.bios.date: 08/16/2004
  dmi.bios.vendor: Phoenix Technologies, LTD
  dmi.bios.version: 6.00 PG
  dmi.board.name: MS-6570E
  dmi.board.vendor: MICRO-STAR INTERNATIONAL CO., LTD
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd08/16/2004:svn:pn:pvr:rvnMICRO-STARINTERNATIONALCO.,LTD:rnMS-6570E:rvr:cvn:ct3:cvr:
  system:
   distro:             Ubuntu
   codename:           lucid
   architecture:       i686
   kernel:             2.6.32-28-generic

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