Comment 57 for bug 257827

I just installed the first lucid beta and this just became an issue for me. From 7.04 to 9.10, I have been able to use my full range of brightness settings with fn + f6/f7 on my Fujitsu Lifebook. Now, I see a horizontal bar indicator that only cycles through the top end of the brightness setting.

/proc/acpi/video/OVGA/LCD/brightness says I have 8 levels of brightness, but the lowest I can set is 6. Also, I found a thread indicating this 'file' could be edited to set levels, but I am unable to save changes to it.

In the same directory, the file EDID contains only "<not supported>".
 the file info contains:
device_id: 0x0400
type: UNKNOWN
known by bios: no

and the file state contains:
state: 0x1f
query: 0x00

If any of that might be useful.