There is also another solution to this, so far I find it a bit better. What you do is:
blacklist video (add 'video' to /etc/modprobe.d/blacklist) add nmi_watchdog=0 to /boot/grub/menu.lst in the defopts for kernel, then sudo update-grub. With ForceEnablePipeA I could not set my brightness correctly (ThinkPad X40). However, with the latter fix mentioned now, that works well, and I no longer suffer from the unreponsive black screen issue. The glxgears performance is a bit lower than with i810 on 8.04.1, but I guess that's going to improve and besides, glxgears is not a good benchmark :-) The fix is from: http://ni.imasters.pl/content/ubuntu-710-oraz-804-i-problem-z-zamra żaniem-ekranu -- laptop hangs when switching video mode https://bugs.launchpad.net/bugs/127101 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
