Comment 5 for bug 376924

There are several other bug reprots with similar symptoms that are now trying this patch.

Dmitriy Geels just added two dupes to this report. He has down some debugging at Bug #350912, I just wanted to make sure his info is carried over (there are more logs and files there, but the following info confirms the behavior the patch in this report fixes):

This laptop has 3 backlight control buttons: dim/bright and 'eco' (which should put laptop into economy mode).
Now, how buttons work (I press buttons not 1 time per second or less):
dmig@dmig-laptop:~$ watch -n 1 cat /proc/acpi/video/VGA1/LCDD/brightness
Every 1,0s: cat /proc/acpi/video/VGA1/LCDD/brightness Sun Mar 29 16:08:54 2009

levels: 0 1 2 3 4 5 6
current: 5

dim button: no changes, gnome brightness popup shows zero level brightness
bright button:
1st press
levels: 0 1 2 3 4 5 6
current: 1
2nd press
levels: 0 1 2 3 4 5 6
current: 4
3rd presslevels: 0 1 2 3 4 5 6
current: 1
4th press
levels: 0 1 2 3 4 5 6
current: 4

eco button:
eco off:
levels: 0 1 2 3 4 5 6
current: 4

eco on: no change
eco off:
backlight blinks twice, then:
levels: 0 1 2 3 4 5 6
current: 2

eco on: no change
eco off: screen blinks 3 times, then level rests on 2