Screen flashes randomly when adjusting Brightness in System Settings -> Screen

[Sean Sosik-Hamor]

Netbook: HP Mini 1120NR

When adjusting the Brightness using System Settings -> Screen the screen will flash randomly. It flashes between full dim, full bright, and a random brightness value or the brightness value of the slider as you drag it.

Sometimes the slider does not move when you drag it; it pops into place when you release it.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome-control-center 1:3.1.91-0ubuntu4
ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
Uname: Linux 3.0.0-10-generic i686
NonfreeKernelModules: wl
Architecture: i386
Date: Wed Sep 7 15:46:34 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu-Netbook 10.10 "Maverick Meerkat" - Beta i386 (20100902.1)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-control-center
UpgradeStatus: Upgraded to oneiric on 2011-09-02 (5 days ago)

[Sean Sosik-Hamor (sciri)]

Attached video to demonstrate bug.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Dylan McCall (dylanmccall)]

This appears to be a lower level issue, maybe attached to how we're talking to the hardware. (Perhaps it's related to how brightness keys change screen brightness at the hardware level without signalling the OS?).

[Dmitry Sandalov (dmitry-sandalov)]

Pressing the "Super" ("Win") key helps me to stop this blinking.

[Sean Sosik-Hamor (sciri)]

I am no longer experiencing this bug in Raring with either nvidia or nouveau drivers.