Public bug reported:

When playing a video in totem the time apps spend in I/O wait (reported in the 
System Monitor applet) slowly climbs upward, eventually the system becomes 
almost completely unresponsive.

Shutting down totem can stop the problem.  If left long enough the time
spent in wait gets to 100% and the time it takes for the system to
stabilize increases, taking several minutes.

Switching out of X and to a terminal (say Ctrl-Alt-F1)  does not fix the
problem but once I go back I can see that while I was out of X the
system was idle instead of in wait.  So actually displaying to the video
card may have something to do with it.

I have tried this with and without 3D effects (Beryl) and Beryl seems to
make it worse but it happens without it so it doesn't seem to be
directly related.

I am running Ubuntu Feisty fully up to date.

I have a Dell XPS system with a Intel Pentium D at 2.7GHz, GeForce 6800
video card. I am using the restricted nVidia drivers.

** Affects: totem (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

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Playing video in totem causes high I/O wait time
https://bugs.launchpad.net/bugs/113003
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Desktop Bugs, which is a bug contact for totem in ubuntu.

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