< a copy of https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-
video-intel/+bug/1162046/comments/10 >


The fix arrived with the updates today.
Most of the corruption is gone. Almost all the frames now get though undamaged.
Thanks for the fix.

BUT

Some of the video frames still get damaged when drawn.
However, it does depend on the video content (and possibly on (absolute) window 
positions)

I attach a short captured dvb-t video to be played with mplayer2 using Xv output
and a picture with the example fbrun dialogue positions.

Steps:
Fluxbox with a round-cornered theme.
mplayer2 with the testcase.ts file, pause it as soon as it starts
fbrun #1, so it's bottom-left corner perfectly matches with the mplayer2's 
bottom-left corner
fbrun #2 somewhere in the video area, preferably far from the fbrun #1
unpause mplayer.

I observed damage between fbrun #2 and the right edge of the Xv video.

Notes:
fbrun's windows don't seem to be resizeable, mplayer opens a window 1:1 to the 
input (so, exactly defined again)

It seems to depend a bit on the position of the Xv window on the screen.
It does rarely work when the Xv is close to screen edges
 => preferably position the Xv window somewhat in the middle of the screen.

PS:
Alternatively you can start mplayer with "-fixed-vo -loop 0" as arguments for 
mplayer instead of pausing/unpausing
That will give you a continuous loop in the same Xv window.

-- 
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which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/1170117

Title:
   [gm45] Xv video corruption when obstructed by shaped windows (corner
  case)

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