[Bug 62776] Video stretched when running ATI dual desktop

[KenSentMe]

Public bug reported:

I run Ubuntu Dapper with two screens on a ATI 9800 Pro. To get dual
screen working i used this command:

sudo aticonfig --dtop=horizontal

This way i can use a big desktop on two screens. when i maximise a
screen it maximises to one screen only. Even fglrx works in this setup.

When i play a video in Totem(-Xine in this case, but believe it happened
also in gstreamer) my Totem video is also stretched, so the screen is
twice as wide as normal. This way a 4:3 video becomes 8:3. This happens
in Totem itself and in the firefox-plugin.

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

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Video stretched when running ATI dual desktop
https://launchpad.net/bugs/62776