Brightness goes to 100% on mouse move

[scribu]

After upgrading from Ubuntu 8.10 to 9.04 I started getting full brightness apparently at random.

It seems to be triggered after I start moving the mouse after a certain period of time. What happens is that the brightness goes to the minumum setting and then quickly goes to 100%.

I have uninstalled the smartdimmer package. I can still control the brightness using hotkeys. The only difference is that I don't see a notification in the upper-right corner.

I am using an Acer Emachines 510 laptop.

ProblemType: Bug
Architecture: i386
Dependencies:

DistroRelease: Ubuntu 9.04
Package: smartdimmer None [modified: /var/lib/dpkg/info/smartdimmer.list]
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: nvclock
Uname: Linux 2.6.28-11-generic i686
UnreportableReason: This is not a genuine Ubuntu package