I had to add the "FramebufferCompression" "off" to the monitor section (see below). While the issue sometimes only occurred when watching two videos in parallel and making some overly (KDE kicker tooltip) appear over them, it doesn't occur anymore even when watching 4 videos + overlay. IOW, issue closed for me. (Kubuntu 8.04.2 BTW)
Section "Monitor" Identifier "Configured Monitor" Option "FramebufferCompression" "off" Option "Ignore" "false" EndSection -- [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