0
votes
0answers
47 views

Changing Brightness Xubuntu [13.10]

I cannot change the screen brightness on Xubuntu 13.10. I am running a Toshiba Satellite Laptop, using the proprietary fglrx AMD drivers, and have tried the acpi_vender etc. kernel parameters (do not ...
0
votes
0answers
46 views

Adjust screen brightness in Ubuntu 12.04 LTS (Packard Bell Easynote R4622 laptop)

I have a Packard Bell R4622 laptop running Ubuntu 12.04 LTS 32 bit. I turned the brightness down with the function keys because the screen was too bright, but now it is too dark and I cannot turn it ...
0
votes
0answers
109 views

Cannot control display brightness with HP ProBook 4545s (Radeon HD7420G) - Ubuntu 13.10

I need help because the notebook is always running at maximum light. 8( This HP Probook 4545s has AMD Radeon HD 7420G (HD7500M/7600M series) graphics and the video driver for the AMD graphics ...
0
votes
0answers
70 views

Xubuntu Brightness not working

I am trying to gain the ability to change the brightness on my Toshiba Satellite laptop running Xubuntu. I have xbacklight, and am running xfce4-power-manager with the --no-daemon flag. It's not ...
0
votes
1answer
96 views

Brightness in ubuntu 12.04

Well this is a common problem as i have seen through my google searches but i didn't manage to find any satisfactory solution so far. I got my laptop recently which came with windows 8 pre-installed.I ...
0
votes
1answer
153 views

No brightness control in Ubuntu 12.04, Lenovo V570

I have been struggling now for an inordinate amount of time trying to get the brightness adjustment working in Ubuntu. I am running Ubuntu 12.04 on a Lenovo V570 Laptop. I have tried all of the ...
0
votes
0answers
50 views

Screen Brightness on Acer AspireV: bar appears, brightness doesn't change

Using 12.04 on an Acer Aspire V5-561-9410. When I use the function keys to modify screen brightness (or use any solutions I've found here to this problem like the one found here or here), I see the ...
0
votes
0answers
36 views

Ubuntu 13.10: Medion Aykoya P6630 Brighness changing issues

So I have tried a few things already with sudo gedit /etc/default/grub and changed the GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux ...
1
vote
0answers
23 views

Brightness determined by eveness and oddness of level numbers

I have a Lenovo G500s laptop on which I installed Ubuntu 13.10, and I am having problems with my brightness, which does not rise and fall gradually but instead alternates between the maximum and ...
0
votes
1answer
115 views

My laptop boots with full screen brightness and full keyboard backlight

I meets a problem that my laptop boots with full screen brightness and full keyboard backlight. According to a post on Ubuntu forum for Macbook (http://ubuntuforums.org/showthread.php?t=1987790), it ...
0
votes
0answers
105 views

How do I adjust screen brightness / backight on a Toshiba Satellite C50D?

I know this is a known bug, it been asked and answered thousands of times before. I've spent the past couple of months searching for a solution and all have failed. My Fn keys won't adjust brightness ...
0
votes
0answers
73 views

Which program handles the screen backlight in 13.10?

What is the name of the program that handles the screen backlight in laptops in 13.10? Where are the settings for that program? I need to switch the brightness file that it uses. I have 3 brightness ...
0
votes
1answer
329 views

13.10 brightness flickering MSI Wind U100

Vanilla install of Ubuntu 13.10 on my MSI Wind U100. Intel graphics card I think. Auto brightness flickers up and down, brightness hud display top-right also flickers. Interrupts input so need to ...
0
votes
0answers
71 views

Display brightness goes all the way up or all the way down when I make slight adjustement

I just fresh installed Ubuntu 13.10 on a MSI MS-16362 laptop. When ever I try to increase the display brightness with Fn + F5 or decrease it with Fn + F4, the brightness amount either goes through ...
1
vote
0answers
176 views

reduce laptop screen brigtness below minimum

This is not duplicate of http://superuser.com/questions/560445/dim-screen-past-the-minimum-on-ubuntu . I have already tried the solution mentioned in the above article. my laptop configuration is dell ...
0
votes
0answers
43 views

dumb power setting ensure dim screen all the time

It's quite dim, but when I unplug, it gets brighter. Funnily enough, when the battery gets critical it goes dim again, and if I plug it in in a dim state it finally gets bright with the power plug ...
1
vote
1answer
62 views

Setting which brightness determines screen brightness

I'm having an issue running Kubuntu 13.04 with brightness, something that seems common. In particular, brightness can be found in these 2 directories: /sys/class/backlight/acpi_video0/brightness ...
3
votes
0answers
166 views

Fn key combination *suddenly* stopped working for brightness only

I've looked at most of the questions relating to enabling hardware brightness control under Ubuntu with the Acer Aspire S3 laptop; initially these fixes worked, under the initially installed kernel ...
0
votes
0answers
103 views

Screen Brightness regulation after hibernation 13.10

I'm new to Ubuntu 13.10 and pretty much satisfied with it. My first problem was that there was no brightness regulation at all, then I added the line "GRUB_CMDLINE_LINUX_DEFAULT="quiet splash ...
1
vote
2answers
276 views

Laptop brightness

I have just installed Ubuntu 13.10 and trying to adjust my laptop screen brightness. My laptop Dell studio 1558 has a key to change the screen brightness, though I reduced brightness to zero, I still ...
0
votes
0answers
104 views

Screen brightness control doesn't work after update

I just installed Xubuntu 12.04 on my Toshiba Satellite laptop. Out of the box, everything worked fine. I could change the screen brightness with the fn keys, and it changed automatically when ...
0
votes
0answers
504 views

Ubuntu Brightness Not Working

I am using 12.04 in my dell inspiron 3521.It has got AMD radeon 7600 and intel graphics.Brightness control was working perfectly. After wiping the pre installed 12.04,I installed new 12.04 ...
1
vote
2answers
170 views

How can I stop my Dell Inspiron laptop from dimming the screen when I plug in the AC adapter?

I'm using a Dell Inspiron N5110 laptop with Ubuntu 13 and I find that every time I plug the power in to charge, the screen brightness dims. If I go into the brightness settings window the brightness ...
0
votes
0answers
330 views

Automatic Screen Brightnes

i know this question have been asked many times but i really cant get it to work. I just installed Ubuntu 13.10 on my Lenovo G580 laptop and i'm trying to manage screen brightness when on battery or ...
0
votes
0answers
104 views

Problems with Ubuntu 13.04 (wifi and screen brightness) on HP 2000-2b59WM

I use Linux for over 2 years on my desktop computer, so far I never had many problems and it always worked fine for my needs as an engineering student. Going straight to the point, there is no ...
1
vote
0answers
700 views

Brightness at 100% since updating from Kubuntu 13.04 to 13.10

since I've updated to Kubuntu 13.10 my brightness level is at 100%. I already googled around and tried different tips, but none of them worked. I've edited /etc/default/grub to ...
-1
votes
1answer
262 views

Brightness stuck at 100% on an Acer Aspire 5742Z

I had done a ton of reading on problems similar to this and have done some digging in my sys/class files to find my brightness controls. I found two possibles, one from Acer and one from Intel, both ...
0
votes
0answers
249 views

Brightness minimum level turns backlight off

I have an Acer Aspire S3-391 ultrabook. It's Sandy Bridge i3-2377M CPU with appropriate integrated graphics. 320GB hard drive with 20GB cache SSD. I have Windows installed on the hard drive and Ubuntu ...
2
votes
2answers
2k views

Cannot change brightness setting using function buttons or using the brightness control bar on HP laptop

I faced this problem when I brought a new HP Laptop , hoping to install Ubuntu(Linux) but when i booted from a Live DVD the brightness was set at max and wouldnt be changed from the function keys or ...
1
vote
1answer
569 views

My brightness control buttons are not working on my Packard Bell netbook

I have a Packard Bell DOT S netbook. First I installed Ubuntu on it. I noticed that I couldn't use my brightness control buttons (F11 F12). I saw the little bar like it is changing its brightness, but ...
0
votes
1answer
413 views

How to make FN keys change brightness on Gateway m7315u?

I know this not a new issue concerning brightness, however, I am anxious to get this working. I added acpi_backlight=vendor to the boot parameters which allows me to change the brightness using ...
0
votes
1answer
606 views

Dell Inspiron 5220 Screen Brightness buttons

I've installed Ubuntu 13.04, everything seems fine except using the FN-key to change the laptop's brightness. It just stays permanently on full brightness. Even if I go into System Settings and ...
-1
votes
1answer
308 views

Why does 13.04 cause my laptop screen to go completely black? [closed]

I have been using Ubuntu for several years, but this is the first time I have had a problem like this. When I upgraded from 12.10 to 13.04, every time I boot into Ubuntu and the login screen is ...
0
votes
1answer
2k views

Dell laptop display brightness problem

I am using Dell inspiron 15 and Ubuntu 13.04. I have hot keys on my keyboard to adjust display brightness and they work fine.But the problem is, as soon as I switch on the laptop the brightness is set ...
0
votes
1answer
248 views

Brightness control on Toshiba P855-30D

This seems to be a recurring question, but none of the solutions I found here and there seem to work for me. So here are the facts: Toshiba Satellite P855-30D Nvidia 640M BIOS 1.50 Ubuntu 13.04 64 ...
1
vote
2answers
222 views

Backlight can't be adjusted 13.04

In Ubuntu 12.04 i was able to change the brightness of my laptop screen by using the FN + Rightarrow all i had to do for that was include GRUB_CMDLINE_LINUX_DEFAULT="quiet splash ...
1
vote
2answers
811 views

Unable to change the brightness on my Dell XPS 15 (L502X)

I am using ubuntu 13.04 and I am unable to change the brightness on my laptop and need a bit a help.
1
vote
2answers
3k views

ubuntu 13.04 brightness problem on laptop

I have installed Ubuntu 13.04 and the proprietary AMD catalyst driver 13.4. After installing the driver, the brightness of the screen has turned to the lowest and can not be changed. No matter how I ...
3
votes
4answers
3k views

How to make the brightness keys work on an HP Folio 13?

In my HP Folio 13 laptop with Ubuntu 13.04 the brightness control works with the slider in the system Brightness & Lock settings, but the brightness function keys don't. Also, the brightness level ...
4
votes
1answer
558 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 ...
0
votes
0answers
490 views

Screen brightness doesn't change (Ubuntu 12.04, HP Elitebook 8560w)

I have a HP Elitebook 8560w and I installed Ubuntu 12.04 on it. I can't adjust the screen brightness even though I can use the slider to lower the screen brightness, it doesn't have any effect. I ...
7
votes
7answers
6k views

Brightness function keys not working

I have an ASUS X55A-SPD0204O laptop. The rest of the FN+Fx (where x = number) like sound + - mute, screen turn off, wireless etc. work perfectly. The problem is with the 2 brightness keys. They just ...
1
vote
0answers
194 views

How can I change brightness on Toshiba Satellite c855-21m?

I can't change the settings for brightness. In fact, it doesn't matter if the Fn keys work or not. I would like just to decrease brightness. For example, using brightness-indicator I get a message ...
3
votes
0answers
219 views

Laptop brightness keys have a delayed effect or none

My laptop is a Gateway NV52L03H, Amd Radeon HD 7520G using the AMD FGLRX drivers. Most of my laptop's Fn (function) keys are working properly and as they should. The only one misbehaving are the ...
0
votes
1answer
563 views

Changed Laptop Screen (Thinkpad), FN-Key Brightness control stopped working

I just replaced the broken screen on my Thinkpad Edge 13". Now the brightness-adjustments via the FN keys don't work anymore (the brightness indicator bar goes from Low - Full, but nothing actually ...
0
votes
0answers
247 views

Thinkpad W520 brightness modification requires suspend

I have a Lenovo Thinkpad W520 with 12.10 installed on it. The specifics are: Linux corellia 3.5.0-19-generic #30-Ubuntu SMP Tue Nov 13 17:48:01 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux It works ...
3
votes
2answers
2k views

Brightness Problem Gradually Changing At Every Restart

I am using Ubuntu 12.10. Whenever I restart my Laptop my system brightness is changing.What settings should I make so that brightness doesn't change on every restart
1
vote
2answers
2k views

Regulating brightness using Fn-keys

I have a laptop with the newest Ubuntu-version (12.04). I want to use the FN-Keys to adjust the brightness of my screen, but it doesnt work. Normally it should be FN+left arrow/right arrow. However ...
1
vote
0answers
24 views

Samsung RV520 with 12.04 freezes while having WiFi and brightness control issues [duplicate]

Possible Duplicate: What should I do when Ubuntu freezes? I have a new Samsung RV520 and have just installed Precise Pangolin 12.04 LTS. I am having serious problems now with the wifi ...
1
vote
1answer
552 views

Can't adjust brightness

I have a Toshiba Satellite A105-4244 (Intel Chipset+Integrated Graphics) and I can't adjust the brightness. Neither the buttons nor the system settings/brightness and lock work. Also I tried the ...