just adding that in case B sometimes the blank screen got back when cosing the switched user session. I solved it: 1. changing the above conf codes in xorg.conf from Option "AGPMode" "8" to Option "AGPMode" 1" 2. completely removing the gnome-screensaver package as suggested here https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/546578
I don't know if these info are useful for debugging action. Hope so. cheers -- black screen when switching between multiple X session https://bugs.launchpad.net/bugs/529882 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
