Tagged Questions

0
votes
0answers
8 views

Dell laptop ambient light sensor

Has anybody here been an owner of a Dell laptop (in my case, the Latitude E4300) with an integrated ambient light sensor and perhaps knows how to get it working in Ubuntu? I have the feature enabled ...
1
vote
1answer
54 views

How to install Intel Media Accelerator Driver in Ubuntu 12?

I have always been windows user, this is the first time i have switched to anything other than windows. The problem is that the display is very very dark and i know it has nothing to do with my ...
3
votes
2answers
84 views

Fade in after inactive mode

Using Brightness & Lock I can set the time when the computer will go to inactive mode: Turn screen off when inactive for [1 minute]. After the time set, the screen fades out and then it ...
0
votes
0answers
86 views

Brightness setting in Lenov Thinkpad Edge E530 after update to kernel 3.8 not working

I used to run Dream Studio Unity (ivy bridge version) on sandy bridge on Thinkpad Edge E530 (B960 proc.), which worked OK, but after it updated itself to kernel 3.8 no more enables to set display ...
0
votes
0answers
15 views

Switch off display as minimum display brightness

How can I switch off the display when I reach the lowest brightness level with the brightness hotkeys? I filed a bug about switching off the display on Launchpad long ago, but I hope there is a ...
5
votes
0answers
765 views

Brightness Control in ubuntu 13.04-64bit not working in Toshiba T110

I'm new to this forum and thought I'd try it out. So, much like every edition since about 11.10 brightness control doesn't work "out-of-the-box". I have a Toshiba Satellite T110-12P and although I've ...
1
vote
2answers
960 views

brightness not working on 13.04 upgrade on dell xps 13 ultrabook

Just upgraded from 12.10 to 13.04 on Dell xps13 ultrabook and the display is very dim and cannot be changed using f'n keys or from system settings. This ultrabook uses Intel's ivybridge mobile. ...
3
votes
1answer
122 views

How do I decrease the display brightness an Acer 5830TG?

I am facing a problem with display brightness in ubantu or other versions of linux. Runing a linux distro as live or HDD installation or inside installation, display brightness is automatically set to ...
3
votes
0answers
129 views

Maximum brightness is not maximum brightness

On my dual boot laptop I noticed that maximum brightness in Ubuntu and Windows 8 is totally different. In Windows 8 the screen is much much brighter at maximum level than it is at Ubuntu maximum ...
0
votes
0answers
152 views

Not able to change brightness [12.04]

I can't change my brighness via the default ubuntu tool or my FN keys, or even xbacklight. I'm running Ubuntu 12.04 on a laptop with a dual graphics (AMD HD6770M+Intel). I've the drivers set up ...
2
votes
0answers
255 views

Display problem when adjusting brightness in ubuntu 12.04

Recently I installed Ubuntu 12.04 on my Dell 1554 laptop. I was adjusting my screen brightness when this happened : this has become a recurring problem which is really annoying. I also want to ...
1
vote
0answers
275 views

screen does not wake up after suspend/ brightness will not adjust

My computer is one of these: http://www.newegg.com/Product/Product.aspx?Item=N82E16834230467 Asus Zenbook UX32A-DB51 Just bought it yesterday. Set to "suspend" when I close the lid, but when I open it ...
0
votes
0answers
119 views

Dark screen when wake / Unable to control screen brightness [closed]

Running Ubuntu 11.04 on Lenovo ThinkPad with an Nvida graphics card. The unit goes to sleep when the lid is shut. (The unit goes to suspend mode (not to disk/hibernate), AC gets turned off, running ...
1
vote
0answers
56 views

Bluetooth switch increases monitor's brightness. Do I have to report a bug?

I have Ubuntu 12.04 and I have a particular issue. I have a hardware switch for bluetooth on my laptop. Every twice I use it, the brightness of my display increases. Very annoying! What should I do? ...
7
votes
2answers
847 views

Does redshift need an active internet connection to work?

It seems redshift doesn't run without an active internet connection. If so, is there some way it could be run when there's no connection to the Internet?
9
votes
3answers
2k views

Why does my Thinkpad brightness control skip steps?

The problem: there are 16 brightness levels on my laptop, but pressing hotkeys Fn+Home, Fn+End adjusts brightness 3 steps at a time (e.g. from 0 to 3, or from 15 to 12). I find it important to notice ...
0
votes
0answers
269 views

12.04 3.2.0.27 kernel change display brightness results in flicker and in loop [closed]

Using either the display brightness icon in system software or the Fx keys ( F2, F3 ) results in a loop or race where 'top' shows the following : Xorg at %70 Cpu notify-osd 40% gnome-settings 25% ...
0
votes
1answer
7k views

Ubuntu 12.04 - Brightness controls not working [duplicate]

Possible Duplicate: Screen Brightness not adjustable for Acer Aspire S3 Controls from "Brightness and Lock" were not working so I've tried a solution that involved changing grub, which I'm ...
2
votes
2answers
522 views

Change the brightness adjustment interval

So whenever I hit my dim/brighten keys on the keyboard, a notification bubble pops up with the screen brightness. All that's fine, but I would like to be able to change how much the brightness changes ...
0
votes
1answer
384 views

Why would screen brightness not adjust ofter closing laptop lid?

Brightness adjustment works until I close my laptop. After I close it once I cannot adjust the brightness. I often restart the computer to be able to adjust again. The Fn Keys do not work. The ...
0
votes
2answers
535 views

LCD brightness step on T520 with Ubuntu 11.10

On Lenovo T520 combination Fn + Home/End for increasing/decreasing screen brightness works perfectly out-of-box but with the step = 3. It's too coarse (HW values are 0..15). How to change the step to ...
0
votes
1answer
1k views

brightness settings on Ubuntu 11.10 64bit, Hardware Dell 1555 with ATI Mobility Radeon HD4570

My laptop Dell studio 1555 has Ubuntu 11.10. At every boot I have to set the brightness level as it gets reset to 100%. Could you please help me out to find a way not to change it every time? Thank ...
3
votes
0answers
339 views

Display Brightness [duplicate]

Possible Duplicate: How can I adjust brightness settings when I am on battery? I remember that in Windows you could put a different Display Brightness when I was on battery in my laptop, ...
0
votes
0answers
515 views

Changing brightness doesn't work [duplicate]

Possible Duplicate: How do you change brightness, color and sharpness from command line? Previously (on Ubuntu 11.04) I was able to manually dim my screen further than the Fn-keys would ...
3
votes
3answers
5k views

How do you change brightness, color and sharpness from command line?

I am controlling my PC with SSH and scripting. How can i change the brightness, color and sharpness from command line? Try 1: failed $ sudo redshift -t 5000:5000 -g .5 Cannot list GNOME panel ...
1
vote
2answers
566 views

Display Brightness Scaling is Incorrect on a VAIO CW

My display brightness adjustment is off by a factor of 10, i.e. it's brightest at 10% instead of at 100%, and the difference between 0% and 1% is a little too high. Any way to fix either of these ...
2
votes
2answers
2k views

How to handle brightness trouble on dell inspiron i14R-2265?

Recently I've installed Ubuntu 10.10 32-bit on my Dell Inspiron i14r-2265, but it looks like brightness control is not working. I can change it "programmatically" (FN + brightness key), though actual ...
2
votes
3answers
2k views

How to control display brightness on Intel hardware?

I'm working with a Sony Vaio BZ-12 Notebook and want to know how to manage the brightness of my display, especially when it's in eco-mode. The designated Graphic-Accelerator is the Intel GM45. With ...
16
votes
6answers
7k views

Is there a software utility to adjust screen gamma/brightness/contrast?

I use to work at night and it is eye-hurting to watch at lightbulb-bright screens (I've got two - laptop's built-in panel and an external 18-inch CRT) in a dark environment. So I adjust my screens to ...