Brightness control not working after latest update

[bcbc]

After today's update my brightness controls aren't working anymore. After checking the System Settings, Brightness and Lock there is no longer any brightness slider bar shown for manual setting either. So my screen is fixed on full brightness. I'll attach screen shots showing the difference before and after the update.

== Regression details ==
Discovered in version: 3.3.91-0ubuntu1
Last known good version: 3.3.90-0ubuntu4

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: gnome-settings-daemon 3.3.91-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-18.28-generic 3.2.9
Uname: Linux 3.2.0-18-generic x86_64
ApportVersion: 1.94-0ubuntu1
Architecture: amd64
CheckboxSubmission: dd7f729683fa7fd3f2e256ba311e86cb
CheckboxSystem: d00f84de8a555815fa1c4660280da308
Date: Mon Mar 5 21:36:12 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20111006)
SourcePackage: gnome-settings-daemon
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[Rainer Rohde (rainer-rohde)]

Same here.

The brightness controls on my MacBook Pro stopped working. The pop-up
that usually shows the brightness level does not longer pop up, and the
keys that adjust the brightness don't work anymore.

As a side note, the keys that control the keyboard backlight still work,
however the pop-up indicator does not change which each keypress, no
longer indicating the keyboard light level as it did only yesterday.

[DK (dkretz)]

A brief video of the behavior.

[Seth Forshee (sforshee)]

I've reproduced this on a MacBook Air 4,1. Everything is fixed if I back out g-s-d to 3.3.90-0ubuntu4.

[Seth Forshee (sforshee)]

Attaching g-s-d debug output from working and non-working versions.

[Zdenko Janov (zdendo)]

Yes, I have problem with it too. My temporary solution is:

sudo setpci -s 00:02.0 F4.B=xx

where 00:02.0 is my device (maybe works for you too) and xx is value in hex from 0 to ff - it works fine for me

I am create short script for console and for gui too, and create alias to ~/.bashrc for run that script. For now it is fastest changing brightness on my HP ProBook 4510s

[Launchpad Janitor (janitor)]

This bug was fixed in the package gnome-settings-daemon - 3.3.91-0ubuntu2

---------------
gnome-settings-daemon (3.3.91-0ubuntu2) precise; urgency=low

  * debian/patches/git_power_logic.patch: fix logic error, should restore
    the screen controls (lp: #947748)
 -- Sebastien Bacher <email address hidden> Wed, 07 Mar 2012 11:46:50 +0100

[Achilles12 (cvg1-cool-man)]

Thanks Sebastian. The fix works perfectly fine.

[Kirill Vaynberg (bigemotenator)]

Works like a charm! Thanks for saving my eyes so promptly =)

[DK (dkretz)]

Like to add my thanks as well!

[Rainer Rohde (rainer-rohde)]

Thanks for fixing this!

At the same time, the issue with the keyboard backlight indicator was also fixed. :)

[Rainer Rohde (rainer-rohde)]

Well, it seems as if the bug's back. In addition, I am also not able to adjust the volume nor the keyboard backlight via my laptop's function keys.

System Settings > Brightness and Lock does not display the brightness settings.

[Rainer Rohde (rainer-rohde)]

Please disregard above post; the brightness settings are back again.

[Mathieu Cossette (mcossette)]

No they are not !! working... it is always been the problem...

[Mathieu Cossette (mcossette)]

Brightness keys no working - Ubuntu 12.04LTS Beta 2 with all the latest updates ..

[Pedro Monteiro (pedronuno777)]

Still not working.
I can set the brightness level with brightness keys and in System Setting > Brightness and Lock but the actual brightness level does not change - Ubuntu 12.04 LTS with all the latest updates

[Pedro Monteiro (pedronuno777)]

This only happens when AMD fglrx drivers are installed.

[Pedro Monteiro (pedronuno777)]

Now it works with fglrx drivers.
fixed by running: sudo aticonfig --initial
hope it helps someone

[Achilles12 (cvg1-cool-man)]

I also had similar problem. It was solved by reinstalling the linux
firmware drivers using synaptic

On 4/27/12, Pedro Monteiro <email address hidden> wrote:
> Now it works with fglrx drivers.
> fixed by running: sudo aticonfig --initial
> hope it helps someone
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/947748
>
> Title:
> Brightness control not working after latest update
>
> Status in “gnome-settings-daemon” package in Ubuntu:
> Fix Released
>
> Bug description:
> After today's update my brightness controls aren't working anymore.
> After checking the System Settings, Brightness and Lock there is no
> longer any brightness slider bar shown for manual setting either. So
> my screen is fixed on full brightness. I'll attach screen shots
> showing the difference before and after the update.
>
> == Regression details ==
> Discovered in version: 3.3.91-0ubuntu1
> Last known good version: 3.3.90-0ubuntu4
>
> ProblemType: Bug
> DistroRelease: Ubuntu 12.04
> Package: gnome-settings-daemon 3.3.91-0ubuntu1
> ProcVersionSignature: Ubuntu 3.2.0-18.28-generic 3.2.9
> Uname: Linux 3.2.0-18-generic x86_64
> ApportVersion: 1.94-0ubuntu1
> Architecture: amd64
> CheckboxSubmission: dd7f729683fa7fd3f2e256ba311e86cb
> CheckboxSystem: d00f84de8a555815fa1c4660280da308
> Date: Mon Mar 5 21:36:12 2012
> InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20111006)
> SourcePackage: gnome-settings-daemon
> UpgradeStatus: No upgrade log present (probably fresh install)
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/947748/+subscriptions
>

--
Sent from my mobile device

[Elijah Lynn (elijah-lynn)]

Same here on a Lenovo Thinkpad W510. The brightness sliider in settings does not work as well as the hardware keys. I am using Nvidia drivers. What is also interesting is that I rebooted 2 times before now and the hardware keys did not even bring up the brightness slider overlay on the top right, but after the latest reboot it appears it is back but just doesn't do anything.

[Elijah Lynn (elijah-lynn)]

I have all the latest updates and this bug is still present. Should I open a new issue?

[bcbc (bcbc)]

Elijah, open a new issue or look for an existing issue e.g. I think bug 776590 covers this problem.