ubuntu-x-swat team mailing list archive

[Jeff Epstein <607926@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

If video is playing during a video mode change, the player application
will crash, under certain conditions.

To reproduce: Using Lucid, nvidia drivers 195, and compiz. Play any
video in any video player, such as totem or compiz. While the video is
playing, change video mode, either via gnome-display-properties, or
xrandr (in some cases it may be necessary to change video mode twice).
The video player will crash.

What I expect to happen: The video player doesn't crash.

Notes: This only happens if compiz is in use; the bug is not present
with metacity. It only happens if Xv is used for video; if you turn off
Xv via gstreamer-properties, totem will not crash during mode switch
(although vlc still will; presumably, it ignores that particular
setting). This didn't happen under Jaunty with a similar configuration,
and so is a regression. So this looks like some ugly interaction between
Xv, compiz, and nvidia.

Additional note: The player will also crash if it is active during a
suspend-to-RAM/resume operation, presumably because resume involves a
video mode change. In that case, however, there is an additional
problem, which is that after the resume (only if a video player was
running at the time of suspend!), Xorg consumes huge amounts of RAM and
CPU time, and system responsiveness is seriously degraded, requiring a
complete system restart (restarting Xorg does not suffice). I don't know
if this is a different symptom of the same bug or a separate bug.

The error message produced by totem when it crashes is:

The program 'totem' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadAlloc (insufficient resources for operation)'.
  (Details: serial 507 error_code 11 request_code 133 minor_code 19)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

I will be happy to provide more detailed information of any sort.

** Affects: xorg-server (Ubuntu)
     Importance: Undecided
         Status: New

-- 
video players (totem, vlc) crash during video mode change when using Xv and compiz
https://bugs.launchpad.net/bugs/607926
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