Questions related to screen brightness.

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2answers
3k views

Brightness control Issue Samsung RV520 in Ubuntu 12.04

I am unable to change and reduce the Screen brightness of my laptop Samsung RV520, it has only one graphics card Nvidia's GT520M, although brightness control appears by pressing FN+UP/DOWN ...
0
votes
1answer
702 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 ...
1
vote
1answer
747 views

Brightness Keys on Samsung X360

I recently installed 12.04 64 on my Samsung X360 and most of the hot keys work (Volume, disable mousepad, num/scroll locks, display, battery). However, when adjusting brightness, there is only two ...
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votes
2answers
4k views

Brightness options in Ubuntu 12.04 desktop missing

I am unable to change the brightness of my desktop screen using this path. System settings{top right corner of the screen)>Under Personal Brightness & lock.No option to change brightness is ...
1
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1answer
2k views

Toshiba L745 Brightness Problem, Fn Keys doesn't works

Has someone solved the brightness problem in Toshiba Laptops? I have a Toshiba L745-s4210 laptop with an Intel HD 3000 graphic card, after install ubuntu all works out of the box except the keys to ...
19
votes
12answers
74k views

How to control Brightness

I didn't install anything myself, but only Ubuntu 12.04 LTS on an Acer 4741g. I use Fn+left/right to change the brightness, but failed. How can I control the brightness levels?
1
vote
2answers
4k views

Brightness controls not working on a Sony Vaio VPCY2

The brightness control are not working on Ubuntu 12.04 64-bit , Sony Vaio VPCY2 ( Intel video card) . I've tried both ways Fn+F5/F6 and from Brightness/Lock menu (under Settings) - I can slide the ...
1
vote
5answers
2k views

Asus K53S F5 F6 brightness keys not working

On my Asus K53S i7, the F5 and F6 keys, for brightness controls, don't work. In Ubuntu 11.10 and in 12.04 (by upgrading mode). I don't know if there is some relationship with the first problem, but ...
0
votes
1answer
1k views

G210M Screen brightness control issue

I have a Sony VAIO VPCCW15FG laptop with NVIDIA G210M graphics card. I can't adjust the screen brightness! If I use the Fn shortcuts the brightness notification shows-up and there the brightness ...
2
votes
3answers
3k views

Backlight Issue - Samsung RV509 Notebook

I installed Ubuntu 12.04 today on my Samsung RV509 Notebook (Nvidia Geforce 315M) and the backlight brightness controls don't work on it. I did some digging around the web and found the samsung tools ...
5
votes
1answer
15k views

Brightness controls doesn't work on a MacBook Pro 5.5 (ubuntu 12.04 LTS) [duplicate]

Possible Duplicate: Brightness controls doesn't work on a MacBook Pro 5.5 I recently installed Ubuntu 12.04 LTS on my MacBook pro 5.5 (mid 2009). I have a problem with the brightness ...
0
votes
2answers
2k views

Cannot change brightness on an Acer Aspire 5745-dg [closed]

I have an acer aspire 5745dg laptop and i have also a very serious problem!! My brightness is always at maximun and I cannot change it with the fn keys or from the power management and my battery ...
0
votes
1answer
647 views

Laptop Brightness indicator

I have developed a brightness indicator for unity in python. I change the brightness using the following system call: echo 4 > /sys/class/backlight/acpi_video0/brightness [value = 0 to 9] ...
0
votes
0answers
138 views

How to enable screen brightness control? [duplicate]

Possible Duplicate: Fn+f2/f3 do not change brightness on my hp dv7-6135dx I have an HP pavilion dv7, I can't control the screen brightness not using special keys and not using the option in ...
2
votes
2answers
7k views

How do i make screen dimming work in ubuntu 12.04 (beta 2)

I recently installed Ubuntu 12.04 (beta 2) on my HP mini 110-4117, but I cant control screen brightness. The Fn + F2 , Fn + F3 keys don't work. System Settings > Brightness and Lock doesn't provide ...
9
votes
6answers
3k views

Brightness setting not remembered on an Asus X54H

So I set the screen brightness using either the function keys or the brightness & lock app. After a reboot or plugging in A/C the brightness goes back to max. When I take A/C off brightness is ...
5
votes
3answers
1k views

Brightness keys adjust brightness too many times

Every time I hit a brightness key on my laptop's keyboard, it adjusts the brightness by three steps instead of one. How can I fix it so that it only adjusts one step at a time? I am using an Acer ...
0
votes
0answers
45 views

how to adjust the Brightness control in Ubuntu 12.04? [duplicate]

Possible Duplicate: There's an issue with an Alpha/Beta Release of Ubuntu, what should I do? I have Vaio Sony laptop Nvidia , and when I use Fn F5,F6 I can see the volume in the screen ...
1
vote
2answers
3k views

Problem with brightness Sony Vaio NVIDIA graphics

Recently I have installed Ubuntu 11.10 on my laptop (Sony Vaio VPCF22MOE). My graphics card is NVIDIA GeForce GT 540M. After ubuntu installation I installed NVIDIA Driver Version which is 295.33. I ...
1
vote
1answer
1k views

Ubuntu Refuses to Change Backlight Brightness

I've attempted to change the Backlight Brightness, by both the keyboard setting and directly in the screen settings. Both show that I've changed the brightness down to minimum neither actually changed ...
2
votes
0answers
357 views

How to tell gnome which file to use to change backlight brightness? [closed]

I have a Dell Inspiron M5010 and I am unable to change my backlight brightness with the F-Keys and it also does not work with gnome brightness widget. I am able to change backlight brightness ...
1
vote
1answer
651 views

Minimum brightness level is brighter than the levels just above it

I'm using a macbook pro 8,1. When I use the brightness keys on the keyboard, decreasing the brightness works until it reaches the lowest brightness level. At that point (when on the lowest level), the ...
0
votes
4answers
6k views

How do I adjust the brightness on a Toshiba Satellite L750/L755?

Can you please help me ? I tried everything I found and nothing worked. For example, I modified grub configuration file, installed xbacklight and tried setpci command.
1
vote
1answer
1k views

HP 6735s Brightness hotkey problem; where is brightness panel?

I have installed ubuntu 11.10 on my laptop hp 6735s. The screen is often too dark and i want to make it brighter, although the hotkeys Fn+F7/F8 are not working. I have tried some things: Firstly it ...
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votes
3answers
4k views

fn keys for brightness not working on an hp 6735s

I use ubuntu 11.10 on hp 6735s, fn keys work for sound adjustment, but for brightness %98 of the times not working, I mean till now only maybe three or four times it worked. always I must set the ...
3
votes
0answers
1k views

Thinkpad brightness steps error using FN+Home/End [closed]

I've met the following problem: normally my T400 (Lenovo Thinkpad) has 16 steps of brightness, and Windows utilizes it correctly. After a fresh install & minor tweaks Mint 12 (which is based on ...
0
votes
1answer
239 views

Brightness of screen to dark, no regulation possible

I have installed on a Laptop Ubuntu 11.10 (Oneiric Ocelot), it's working fine, but the screen is mutch to dark and no regulation is possible. Grafic card: ATI Mobility Radeon X1350.
2
votes
2answers
5k views

Acer aspire one d270 can not set brightness

I hope you can help me figure out how to set the brightness at my netbook. Following problem appears since I installed ubuntu 11.10 on my acer: I am not able to adjust the brightness by FN Keys nor ...
4
votes
2answers
5k views

fn + arrow keys don't adjust actual brightness on an Acer Aspire 5740

I have an Aspire 5740 with an Intel Core i3, and Fn + arrow keys still call up the brightness adjuster, but have no effect on actually changing the brightness. The slider moves, but the brightness ...
0
votes
1answer
552 views

screen brightness flickering

After installing ubuntu 11.10 screen started flickering between two brightness levels i gues its not hardware issue because everything worked perfectly fine on windows which i have been using before ...
3
votes
2answers
3k views

Adjust brightness and contrast on an Acer Aspire as5750?

I have an acer aspire as5750. With the intel hd 3000 graphics. When i use the adjustment function keys the dial moves but it doesn't translate to the screen diming. Same with the dial in linux ...
4
votes
1answer
3k views

Minimum Brightness Level too Bright/High on an Asus UL-50

the minimum brightness level is too bright for me. I did take a look at the following post: Decrease Backlight Below Minimum but the solution mentioned did not work for me. Before using ubuntu, I ...
0
votes
1answer
3k views

How to make xfce (xubuntu-desktop) have no brightness-levels?

I want to have a smoother experience. With xubuntu-desktop I have just about 6 brightnessteps with my laptop. But in Gnome when the desktop darkens, it happens without steps like in mac. Is it ...
3
votes
1answer
1k views

How do you make the keyboard brightness button adjust at smaller intervals? [duplicate]

Possible Duplicate: How to increase brightness in smaller steps? I have a Lenovo Thinkpad T60 running Oneiric. According to the files in /sys/class/backlight, I should be able to adjust the ...
1
vote
2answers
4k views

Unable to adjust screen brightness on Gateway NV54

i have ubuntu 11.10 installed on gateway nv54. I want to install drivers for video card because the Screen brightness not changing.. But "Additional Drivers" not detecting anything. Graphics: Mobile ...
1
vote
0answers
360 views

Screen Brightness Doesn't Change. Gateway NV54 [duplicate]

Possible Duplicate: Unable to adjust screen brightness on Gateway NV54 I have a gateway nv54 and the screen brightness does not Change. So I installed indicator brightness but this did not ...
2
votes
0answers
283 views

Can't calibrate color manager on THINKPAD SL 500 UBUNTU 11.10 [closed]

Im unable to calibrate my screen on ubuntu 11.10 (THINKPAD SL 500). The calibrate button is disabled.
22
votes
5answers
11k views

Decrease Backlight Below Minimum

I have this laptop that doesn't handle the backlight very well. In /etc/default/grub, I have added a acpi_backlight=vendor function to get it to work at all. Which is cool, and the backlight now ...
3
votes
2answers
2k views

No brightness control, HP dv3500 laptop / GeForce GPU

I feel almost stupid asking a brightness question with all the similar ones out there, but I haven't yet found a working solution, so here goes: System HP dv3500 series laptop (dv3550eo - ...
1
vote
1answer
1k views

Brightness keys don't work on a Toshiba Satellite t110

Ok well I have tried close to every single post about this problem that I could find and can not find a perm a fix for it. The fn + brightness up/down buttons do not work at all they show it changing ...
2
votes
2answers
807 views

volume & brightness control

I have just installed ubuntu 11.10 oneiric on my dell studio 1569. I am experiencing a strange problem with brightness control, volume control etc: my hotkeys are enabled and, apparently, when I use ...
11
votes
11answers
7k views

How to increase brightness in smaller steps?

Is there a way to adjust lighting step ? I have Lenovo L520, and Fn + Light Up or Down adjusts by 20%, how can I adjust the step to 10% ? it will help me fine tune lighting at my dark room.
0
votes
2answers
770 views

Annoying Screen Flickers on MSI U120

My screen brightness changes on my MSI U120 when I log in. I can fix this by switching workspaces, and the screen will stay at a constant brightness. Changing the brightness using the function keys ...
0
votes
3answers
3k views

Cannot change screen brightness on my lenovo z 570?

I am not able to change the screen brightness on lenovo z570. Even the function keys for the brightness are also not working. Any idea ?
8
votes
2answers
2k views

Brightness setting is reset to maximum at login

My laptop's screen brightness is auto set to maximum at login (= at the login screen already). Even after I have adjusted it to lower it is again set to maximum after annother login. Is there a way ...
1
vote
1answer
350 views

can't configure Nvidia on my Sony Vaio VPCEH2C1E/W

i have recently bought a Sony Vaio VPCEH2C1E/W laptop on which i installed Ubuntu 11.10 64bit OS type the graphic card is 512 MB NV GeForce 410M for which I chose (version current) [Recommended] if I ...
13
votes
4answers
8k views

Brightness control on Awesome windowing manager

I have just installed Awesome WM and I have no options to change the screen brightness, and also its shortcut doesn't working. Any one can help?
2
votes
1answer
1k views

Brightness controls doesn't work on a MacBook Pro 5.5

I recently installed Ubuntu on my MacBook pro 5.5 (mid 2009). I have a problem with the brightness control. The thing is, when I try to reduce the brightness of my display which would help my battery ...
6
votes
2answers
2k views

2 folders in Sys/Class/Backlight?

ISSUE: Backlight brightness does not change. More Detail: Brightness will not change, using both 'System Settings->Screen', or Fn keys (Brightness bar shows and moves, but screen brightness does not ...
5
votes
3answers
3k views

Can't adjust brightness on a HP Pavillion Dv3

I can not adjust the screen brightness on my HP Pavillion Dv3-2154ca, using Ubuntu 11.10. My Fn-f7/f8 keys don't work (they just show a changing screen brightness bar, with no effect), and adjusting ...