It looks like your system is reporting strange numbers for number of brightness levels. In first screen-shot (and attached lshal output), you can see that there is only *one* level reported, while second screen shot shows very large number of brightness levels. I would suspect this is problem of your HW (buggy BIOS?) or kernel/hal which is reporting wrong levels.
** Changed in: kde-guidance (Ubuntu) Status: New => Incomplete -- [amd64 gutsy] kde-guidance-powermanager brightness controls missing https://bugs.launchpad.net/bugs/139205 You received this bug notification because you are a member of Kubuntu Team, which is a bug contact for kde-guidance in ubuntu. -- kubuntu-bugs mailing list [EMAIL PROTECTED] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs