I have the same problem on my ThinkPad X40 (same chipset as reported in this bug), it's reproducible by either a suspend/resume cycle or by leaving the laptop idle long enough to where the backlight is turned off. I can confirm that this is a regression introduced by 9.10, this was working correctly in 9.04.
I have the same problem on my ThinkPad X40 (same chipset as reported in this bug), it's reproducible by either a suspend/resume cycle or by leaving the laptop idle long enough to where the backlight is turned off. I can confirm that this is a regression introduced by 9.10, this was working correctly in 9.04.