My experience with Acer TravelMate 5335 (video Intel GMA 4500M) and ubuntu 11.04:
SOLUTION 1 (bad): renounce to graphic acceleration and add "nomodeset" into boot (typeing "e" on grub start) or in GRUB_CMDLINE_LINUX_DEFAULT option into "/etc/default/grub". at least you can boot without an external VGA monitor and try to solve SOLUTION 2 (quiet bad): try to install previous kernels like 2.6.35 (there is an italian debian experience at http://forum.debianizzati.org/viewtopic.php?t=43209&p=132402) SOLUTION 3 (less bed): add the following commad into "/etc/rc.local" : setpci -s 00:02.0 F4.B=00 The kernel bug remains still there but your monitor will turn on boot before loading x server. But the game "tux racing" turns again the monitor off. Hibernating too (someone say, haven't tried yet) I don't know if it is a linux bug or an ubuntu bug, surely this interests debian distributions too. sorry for my english. good luck. Ale -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/740893 Title: Kernel 2.6.38-7 completely dims screen on Intel GMA 4500M To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/740893/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs