I currently do not have linux installed on my macbook. I did however try with the natty live cd. The problem appears to have been partially solved, but let me elaborate:
- Hardware is the same as with my original setup (Same Macbook, same external display) - Software is different: Previously I used KDE (Desktop effects explicitly enavbled), on the Live-CD I used Unity (Desktop effects ??? enabled - presumably yes) When using only the internal display, everything is fine. When plug in the external display while sitting at the desktop, the desktop is being expanded to cover both screens. However, the background image is garbled (mostly black, a few distorted traces of the original background image are still visible). Additionally, there appears to be a problem with screen refresh. When I hover over the sidebar (e.g. Firefox) the label will appear, but not disappear when I move the mouse away. Next, I used "Monitors" to disable the internal display and enable the external display only. It took quite some time to switch to that state (10-20 seconds), but after that the display was fine. I then switched back to the dual-head configuration and sure enough, the problems came back. It even went so far that when I unplugged the external display, two windows that were previously open became part of the background image. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/496890 Title: [i945gm] Garbled screen when disabling internal display on macbook -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
