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[Garry Leach <739983@xxxxxxxxxxxxxxxxxx>]

These lockups seem to happen after 22:00.

I usually start the Mythbuntu system at around 17:00, so that it has
time to do any disk checking, if required, & is then ready for recording
by 17:30.

I usually start watching recorded TV programs from the previous night
(or earlier) after 18:00.

Is there any process, that starts in the latter part of the evening,
that triggers these lock-ups?

Regards, Garry.

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https://bugs.launchpad.net/bugs/739983

Title:
  Lock-up of Myth-frontend while playing recorded TV

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  New

Bug description:
  Dedicated HTPC:
  Mythbuntu 10.10
  MythTV from PPA, version 0.24

  (My desktop PC runs Ubuntu 10.10)

  I am basically an end-user, so my way of expressing things may not be very
   technical.

   On the evenings of both 20/03/2011 & 21/03/11, the recording (different
   for each night) that I was watching stopped playing, but left the image on
   the screen (similar to pause).  The keyboard & mouse were also locked-up.
   I left it for 30 minutes, but nothing changed.  The only way to shut the
   computer down was by holding the power button for about 6 seconds (I
   expect that reset would also have worked).

   On both evenings, & prior to the failure, I had watched several recordings
   without incident.

   I don't know how to reproduce the problem, other than keep watching
   recordings until some factor causes one to lock-up.

   I recently upgraded to Mythbuntu 10.10, then used the PPA system to
   upgrade to Myth 0.24; I have downloaded all proposed updates since then.

   Up until 11/03/2011, I was using Mythbuntu 9.10.  This was quite stable
   for over 12 months usage (as were previous versions).  I had had problems
   with Ubuntu 10.04, so didn't want to go to Mythbuntu 10.04.

   However, I wanted to have the better shut-down screen (part of
   Consolekit?), & I hoped that there may be some Myth improvements.

   On 12/03/2011, I upgraded to Mythbuntu 10.04.  There were lots of problems
   with this, including that I could not delete recordings made on that day
   (apart from using file manager).  Another problem: WatchTV crashed the
   Myth forntend back to the desktop.

   So on 13/03/2011, I upgraded to 10.10.  This was not much better.

   So I researched the PPA facility & upgraded to stable Myth 0.24.  While
   doing this, I noticed (somewhere) a button to do something to the
   database, so I clicked on that.

   Whether it was the installation process for 0.24, or the database review,
   the system now worked as it should.

   However, I didn't have the logout screen that I wanted (& had seen on a
   live CD of 10.10).  On 19/03/11, a friend helped me fix the logout screen
   (ticking the Prompt on Logout field on the Session & Start-up screen).

   Since then, Myth frontend does not start automatically.  Should it be
   listed in Session & Start-up?

   I have copied an extract of the backend log file (covering the 30 minutes
   on 21/03/2011 when the screen locked-up) & attached that below.  (There
   was no frontend log file).

  I reported this bug to the MythTV team (ticket #9681), but they
  responded to say that it was not MythTV, but an OS problem.

   My hardware is 2.5 years old, with more than adequate "capacity" to handle
   Myth (both front & back-ends); the PC is dedicated to MythTV & is not used for anything else.

   Thanks in advance, Garry.