This seems to be a problem with the way battery brightness and AC brightness are calculated relative to each other. See my duplicate bug #206228. If you cycle between AC and Battery power by pulling the plug in and out, the brightness level of both will steadily decrease until battery brightness is at minimum and AC brightness is two clicks above this. My guess is that there is a calculation error where AC brightness is calculated relative to battery brightness when, in fact it should only go one way (if at all). Both levels should just be stored and not calculated relative to each other.
There are other bugs in the power manager related to this one that I discovered, but that's for another bug report. -- [hardy] Brightness level on battery is not consistent with user adjustments https://bugs.launchpad.net/bugs/203108 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
