I can add another data point for the "FramebufferCompression" "Off" fix. I have a Mac Mini. 8.10 is the first release to come even close to being able to drive a display from it. I've been experiencing screen flickering and black screens as described in the initial report as well. mplayer triggers this behavior more quickly than anything else I've found, usually blacking the screen and requiring a reboot within 5 or 10 minutes of video playing. Other media players trigger the behavior too, but less frequently. Everything causes flickering to happen now and then - including non-media playing, like browsing around the filesystem with nautilus. I also get frequent pipe underrun reports in my X log file.
After adding `Option "FramebufferCompression" "off"ยด to my xorg.conf (as described by rhtme52 above), the system has been stable for several days. The flickering is gone and the display hasn't required a reboot to unblack it since. -- [i945] spontaneous black screen (major pipe-A underrun) https://bugs.launchpad.net/bugs/311895 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
