Comment 15 for bug 129109

No, as I said I am using a thinkpad X60s.

I killed my running gnome-power-manager and ran

    gnome-power-manager --no-daemon --verbose

After letting my computer sit idle for a couple minutes (with the screen open), I came back to g-p-m spewing messages and the brightness meter stuck on the screen. I'm attaching the g-p-m log output.

Although g-p-m's log has lots of "emitting button-pressed : brightness-up" messages, I did not touch my computer to get it into this state.

This seems to be very easy to reproduce, so let me know if there's anything else you would like me to try.