I can confirm this bug: I am running Ubuntu 10.10, firefox 3.6.13 with Adobe flash plugin 10,2,152,27 installed. My laptop is an HP Pavilion dv6700, 32 bit. My primary laptop display runs in 1280x800, my external monitor runs in 1360x768 to the right. If the browser is in the right window and I try to view a youtube video, it appears in my laptop screen. If, however, I rearrange my screen so that the monitor is on the left and my laptop screen is on the right, the fullscreen flash video appears on the monitor screen. Fullscreen flash seems to prefer the monitor on the left.
If, however, I go into System -> Appearance -> Visual Effects and select NONE, then this problem disappears: fullscreen flash youtube video will appear in the proper monitor. This bug seems to be related to the Visual Effect feature on the desktop. The priority of this should be raised to at least medium, and the same behaviour has been noted by multiple sources on the ubuntu forum (see http://ubuntuforums.org/showthread.php?t=973631&page=2) ** Tags added: flash visual-effects -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/479625 Title: Fullscreen always on primary display with TwinView -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs