Reconfirming, happens for me in Ubuntu 8.10, Kubuntu 8.10, Mint 8.10 and Xubuntu 8.10. It also occurs when I use (Ctrl+)Alt+Fx to switch to tty. Switching *between* ttys works fine, but switching to and from tty - from and to X - reverts brightness to 100% which seems to be my default. Ergo, as soon as X "blanks" the screen (changes mode?), it's reset.
This happens with the intel, nv and proprietary nvidia drivers, tested on two different laptops (Advent 4211, Acer Aspire 9815). $ apt-cache policy acpi acpi: Installed: 1.1-1ubuntu1 Candidate: 1.1-1ubuntu1 Version table: *** 1.1-1ubuntu1 0 500 http://archive.ubuntu.com intrepid/main Packages 100 /var/lib/dpkg/status $ uname -a Linux tleilax 2.6.27-10-generic #1 SMP Fri Nov 21 12:00:22 UTC 2008 i686 GNU/Linux -- Backlight brightness level reverts to default after lid re-open https://bugs.launchpad.net/bugs/247475 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