Update. Up until today, 13 Aug, I had no more black screens or freezes. I have installed virtualbox 1.6.4 (PUEL) and that has worked well (apart from failed access to USB unless running vbox as root). Still get occasional screen flashes but screen stays on. Today I was zooming a multimap window on firefox and the screen went black. It turned out that I could get to VT1 and I restarted gdm. This did restart X but still no login screen rendering on VT7. I then did telinit 1 on VT1 and this also got back to a login window on a black VT7. Only restart of ubuntu made rendering work normally. This is similar to previous black screens but this time I was able to get to a VT - my keyboard input was recognized. I have enabled usb now (by editing /etc/init.d/mountdevsubfs.sh) due to trying to get virtualbox USB support to work. This may have affected my ability to get to a VT. So my confidence in X on ubuntu (or sidux) is still not high. There is some fundamental, though intermittent, instability in X for my system.
-- X video rendering intermittently fails if DRI or composite is enabled https://bugs.launchpad.net/bugs/226272 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
