Ubuntu

Screen dialog won't remember brightness setting

Reported by Dmitry Kann on 2011-10-08
120
This bug affects 31 people
Affects Status Importance Assigned to Milestone
gnome-settings-daemon
Unknown
Medium
gnome-control-center (Ubuntu)
Low
Unassigned

Bug Description

If I set some Brightness value lower than 100%, on the next logon it is reset again to 100%.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome-control-center 1:3.2.0-0ubuntu6
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic-pae 3.0.4
Uname: Linux 3.0.0-12-generic-pae i686
NonfreeKernelModules: fglrx
ApportVersion: 1.23-0ubuntu2
Architecture: i386
Date: Sat Oct 8 17:45:04 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110921.2)
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
usr_lib_gnome-control-center:
 deja-dup 20.0-0ubuntu3
 gnome-bluetooth 3.2.0-0ubuntu1
 indicator-datetime 0.3.0-0ubuntu3

Dmitry Kann (yktooo) wrote :
Sebastien Bacher (seb128) wrote :

Thank you for your bug report, can't confirm the issue though... it could be hardware specific? Somebody have the bug should send it to GNOME

Changed in gnome-control-center (Ubuntu):
importance: Undecided → Low
Dmitry Kann (yktooo) wrote :

Yes, I think it is hardware specific. I think it mostly applies to laptops. I personally have an iMac, and its brightness can only be adjusted by software.

I attach the screenshot of the Screen Settings dialog. The Brightness slider is focused.

Sebastien Bacher (seb128) wrote :

could you send the bug to bugzilla.gnome.org? it would be better if somebody having the issue would send it to the code writer

Dmitry Kann (yktooo) wrote :

@Sebastien: Done, the bug is filed here: https://bugzilla.gnome.org/show_bug.cgi?id=661586
How can I assign this bug to the above GNOME bug?

Sebastien Bacher (seb128) wrote :

Thank you for sending the bug to GNOME

Changed in gnome-control-center (Ubuntu):
status: New → Triaged
Changed in gnome-control-center:
importance: Undecided → Unknown
status: New → Unknown
Changed in gnome-control-center:
importance: Unknown → Medium
status: Unknown → New
Changed in gnome-control-center:
importance: Medium → Wishlist
Junaid P V (mjunaidpv) wrote :

Me too facing this problem, it does not remember screen brightness setting and Bluetooth setting.

Usually I dim screen brightness to very low and turn off Bluetooth always. I am using same machine since ubuntu 10.04 and now only in 11.10 this problem appeared.

T J Schemkes (tj-schemkes) wrote :

I have the same problem as mjunaidpv.

Ravi Kumar (kumarravi-kumar267) wrote :

Any one have a fix for this. Me and most of friends are affected by this bug. It pains in my eyes because every time I reboot Ubuntu the brightness is set to 100%. Please any provide patch or a fix, please!

Dmitry Kann (yktooo) wrote :

@Ravi: I set brightness to the minimum automatically by adding the following command to the Startup Applications:

pkexec /usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 1

Works just fine. But it still would be nice to have the bug fixed.

Changed in gnome-control-center:
status: New → Invalid
Jo Vik (jovik-pl+launchpad) wrote :

Same problem with Ubuntu 12.04 x64.

I don't think it's a wishlist or low priority bug, since it directly affects all users. Most of us are patient, but this bug won't help solving bug#1 (aka Microsoft market share)

Joseph Judistira (jjdstr) wrote :

Not sure if it will help anyone else, but for me this is fixed after I edit my /etc/default/grub file so that the GRUB_CMDLINE_LINUX_DEFAULT line looks like the following (and also running update-grub plus rebooting afterward):

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor"

My laptop now keeps its brightness settings properly.

Jani Uusitalo (uusijani) wrote :

Follow upstream's duplicate trail.

affects: gnome-control-center → gnome-settings-daemon
Changed in gnome-settings-daemon:
importance: Wishlist → Unknown
status: Invalid → Unknown
Changed in gnome-settings-daemon:
importance: Unknown → Medium
status: Unknown → In Progress
gdp77 (gdp77) wrote :

I verify this problem. (12.04 x64 here installed on toshiba l655 laptop).

It critically affects battery life, so its importance is not jut "low". Battery life is lower when using ubuntu compared to windows 7, so I think that it should be fixed as soon as possible.

heroandtn3 (heroandtn3) wrote :

I also have this problem, someone should fix it.

ashjas (ashjas) wrote :

this bug is all over the internet... this affects a lot of ubuntu users.. ubuntu is making such a great progress.. but a bug as simple as the screen brightness is not fixable? my m/c Asus N56VJ.

and the one that gave the solution to change that grub line.. firstly it doesnt effect any change at all.. and in that state i cant suspend. i have been in such a pain that one solution creates another problem and i am always searching all over the internet to fix these silly bugs instead of using my new machine for doing some fruitful work!

Kindly Please canonical, take note of this bug and please fix this.

Changed in gnome-settings-daemon:
status: In Progress → Unknown
Dixon Xavier (dixoncx) wrote :

Any update..?

Upstream bug reports:
https://bugzilla.gnome.org/show_bug.cgi?id=661586
https://bugzilla.gnome.org/show_bug.cgi?id=649423
shows RESOLVED with a patch in 'systemd'.

chris (ign-christian) wrote :

I'm experiencing this bug using Ubuntu 12.04.4 and kernel 3.14 rc6, but that's not happen with kernel 3.2 (original Precise kernel).

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