I can confirm this on a Dell Inspiron 6400 (1505). Brightness can go down, but not all the way and when I try to increase it, it just goes up a bit for a second and then returns to the old value. This happens only with the keyboard keys, when I use the Power Management software it all works OK. I am using Gutsy tribe 5 with all available updates installed, upgraded over Feisty.
** Attachment added: "What is the output with gnome-power-manager --verbose --no-daemon" http://launchpadlibrarian.net/9461079/output -- Cannot increase display brightness with hotkeys https://bugs.launchpad.net/bugs/140839 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs