I have same problem.. Mine is Acer Aspire 4736 with Intel GMA 4500M. Linux - 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 2011 i686 i686 i386 GNU/Linux
I run this command under no-backlight condition on terminal (I still can read my screen under flashlight): sudo setpci -s 00:02.0 F4.B=00 and my back light is back! but back light is off again after reboot, need to run that command again :( All I did was add the setpci command into sudoers file (sudo visudo) so i don't need to type password when running setpci, and make a new executable file contains that command, then make new startup entry to run that executable file every startup. Now i have my back light function normally every startup.. Try this guys, who knows it can help you. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/779166 Title: Upgrade to version 11.04, disable the laptop display back light -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
