0
votes
0answers
11 views

Ubuntu 12.04 - backlight adjustment

I was trying to look at solutions that would enable me to adjust the backlight intensity using the function buttons. I tried editing the grub file in /etc/default/grub but that didn't help. I ...
2
votes
4answers
329 views

Backlight issues with Asus X551MAV-EB01-B

I've got a fresh install of trusty (xubuntu if that matters, I don't think it should) on a Asus X551MAV-EB01-B. My function keys for brightness don't work. Here's what I know so far: If I pass ...
1
vote
0answers
79 views

Keyboard Backlight not working

I'm using Ubuntu 12.04 on a Toshiba Satellite P775-S7100. The keyboard backlight was working initially, but after reinstalling the same version of Ubuntu it stopped working, and as far as I can tell, ...
1
vote
0answers
36 views

Ubuntu 12.04 boots to blank screen without backlight after upgrade on ASUS A72J [duplicate]

I had a working version of Ubuntu 12.04 in dual boot with Windows 7 on my ASUS A72J. However, after installing the last ~350 upgrades (I had not used Ubuntu in a long time) using the normal updating ...
0
votes
0answers
220 views

Samsung NP900X3G issues on Ubuntu 12.04 ( keyboard backlight, multitouch…)

I recently got the newest member of the Samsung Ativ Book 9 Family NP900X3G and I'm having the same issues that have been reported for the previous models but none of the fixes worked for me. ...
1
vote
0answers
49 views

Key Repeat functionality doesn't work on certain keys (Ubuntu 12.04)

I'm running Ubuntu 12.04 on a Macbook Pro and key repeat (when I hold down a key) is not working for any of the brightness buttons (keyboard backlight and screen brightness). Is there any way to ...
0
votes
1answer
211 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
1answer
163 views

How can control my brightness of the display on hp nseries laptop

I just bought a new laptop and i have installed windows 8 and ubuntu 12.04 on it. And while using ubuntu i am not able to control my brightness with the dedicated keys or the softwares such as ...
0
votes
0answers
41 views

Screen flashes back and forth between black and lit screen, not at boot, totally random

Currently using HP/Compaq 6220 laptop with 12.04 lts installed. Sometimes after the system warms up and is running, it will randomly flash the screen to black, back to the screen, back to black, and ...
0
votes
0answers
171 views

Keyboard backlight problem on asus ux32vd

I have running Ubuntu 12.04 with kernel 3.8 I have tried many suggestions, although, the backlight is still not working. If I try to use the most simple solution: echo | sudo tee ...
1
vote
0answers
512 views

No laptop backlight when using AMD driver recommended by Steam

When I install the fglrx-experimental-13 driver that Steam recommends for my laptop (ATI Mobility Radeon HD 5000 Series) I have no backlight when I log in, but an external monitor works. I've tried a ...
0
votes
1answer
221 views

Backlight controls stop working once X starts

I'm using a Lenovo Thinkpad X120e with Ubuntu 12.04 LTS 64-bit and a Gnome 3.4 (gnome-shell) desktop environment. I have installed the latest proprietary AMD drivers (From their website) for the AMD ...
0
votes
1answer
335 views

How can I avoid maximum brightness settings upon every boot?

Whenever I boot Ubuntu the display and keyboard brightness are reset to maximum. Since I almost never need such high brightness settings, every boot includes an aftermath of excessive key pressing. ...
2
votes
1answer
148 views

Console: switching off a built-in backlight

I'm trying to find out how to power off the backlight in a device I'm using with a built-in screen. I believe that DPMS works with the screen, but X is not installed, so I can't use xset. I thought ...
3
votes
5answers
2k views

Last couple of fglrx drivers on Ubuntu 12.04 have backlight support broken

I've been keeping up with latest fglrx releases on AMD's website and it appears that both the last stable (13.4) and beta (13.6) drivers have brightness broken in Ubuntu 12.04 with all the latest ...
1
vote
1answer
322 views

Make a script run at startup

First of all,sorry for my bad English. Im using Xubuntu 12.04 on Acer Aspire One D270.My Screen brightness hotkeys (Fn+L/R) dont work.I installed xbacklight but it always shows "No outputs have ...
3
votes
1answer
6k views

How to use xbacklight with brightness keys in a VAIO

I have a Sony VAIO VPCCW15FL, with Ubuntu 12.04 installed. Sadly, the brightness keys do not work out of the box, although the brightness meter reacts to the brightness up/down keypresses. ...
2
votes
2answers
620 views

switcheroo to discrete turns off backlight on laptop screen

AMD cedar/ Intel ironlake hybrid graphics. Custom kernel 3.8.3. Free radeon xorg drivers. When I switch from integrated to discrete, I do a killall lightdm and X doesn't automatically respawn like it ...
0
votes
2answers
3k views

Sony Vaio-Brightness Settings not Changing

I've searched for this problem but I cant find a straight answer. If I go into /etc/class/backlight, there's nothing there. Could someone help? I have the Nvidia Driver installed, and the Fn keys ...
1
vote
0answers
1k views

Brightness not working Acer Aspire One 756-2623 [duplicate]

Brightness not working Acer Aspire One 756-2623 with Ubuntu 12.04. Also the mousepad right-click isn't working ether. I'm completely new to Ubuntu and Linux in general. How do I fix it?
4
votes
1answer
1k views

How can light sensor be enabled for control brightness and keyboard back-light automatically?

I have A Sony VAIO laptop F-series () Nvidia and it has light sensor. When I was using Windows, this light sensor controlled the brightness and the keyboard backlight automatically due to the ...
3
votes
1answer
949 views

Backlight does not work on Toshiba portege and LTS 12.04 [closed]

I have a Toshiba portege. Since some time I try to enable the backlit function but without success. I found several posts that should solve it, for example: Backlight Issue but it didn't work for me ...
2
votes
1answer
1k views

How to make backlight work on Acer 5732z?

I want to run 12.04 on my Acer Aspire 5732z. I know from research that these computers have issues with the backlight on Ubuntu. So I tried a couple of solutions: The sudo lightdm restart method. I ...
1
vote
1answer
460 views

12.04 backlight issue for Acer Aspire 5734z-4725 running on usb flash drive

I have followed the fix found here: Backlight Issue However I can't use the sudo update-grub2 command as it errors with /usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?) ...
1
vote
1answer
653 views

How to prevent screen from going black (back light is shut down) at startup (laptop) Ubuntu 12.04?

So,in may laptop with Ubuntu 12.04, the startup is like this: 1) I see the Ubuntu logo with the 5 dots on a purple background for a few seconds. 2) The screen goes completely black (no back light), ...
0
votes
2answers
5k views

Where can I find an updated asus-wmi-dkms package for Asus N56V?

I'm trying to use the answer for 166261 question. The suggested package ( install asus-wmi-dkms_0.2_all.deb.gz package (from http://ubuntuforums.org/showpost.php?p=12057336&postcount=49) ) seems ...
3
votes
3answers
21k views

Keyboard backlight not working on an Asus N56V

See this question. The FN keys are not working Using answer in this question I installed the asus-wmi-dkms_0.2_all.deb.gz package Now, using xev I see that the keys emit keycodes (for backlight ...
2
votes
0answers
1k views

Keyboard backlight support for Asus G55VW

The FN+F3 and FN+F4 key combinations are not able to control the keyboard backlight on my Asus G55VW. I could live with a command line solution so I tried the solution proposed here: ...
2
votes
1answer
2k views

GUI changes brightness in wrong /sys/class/backlight/*/brightness

When I use Fn+F6 / F7 (brighness down and up on Toshiba) the brightness notification opens up and responds, but the actual screen brightness remains unchanged. When I go to Settings > Brightness and ...
6
votes
4answers
3k views

Macbook Pro boots with full screen brightness and keyboard backlight

I have dual-booted my Macbook Pro with Ubuntu 12.04 . Whenever i log-in to Ubuntu, it does so with full screen brightness and keyboard backlight at full . How do i get rid of this? How can i tweak the ...
0
votes
1answer
898 views

Backlight problems with 12.04 on my Acer Aspire 4736z

How can I fix a bug that wouldn't let me turn the backlight on after it turns off automatically when I close the lid or when powersave settings kick in? I also can't adjust the brightness of the ...
5
votes
2answers
4k views

How to disable Macbook keyboard backlight

How do I disable the keyboard backlight, by turning it completely off, on a Macbook in 12.04? Whenever I reboot, Ubuntu sets the backlight to 100% brightness, and frustratingly the new function keys ...
1
vote
2answers
5k views

No back light on my Acer Aspire 5734z

I installed Ubuntu (12.04) on my Acer Aspire 5734z and the back light stopped working. I have tried the fix by editing the grub file posted on here a couple of days ago but that hasn't fixed it. I ...
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 ...
0
votes
1answer
515 views

WIll 12.04 have a keyboard backlight indicator?

I have a laptop which has a keyboard with a backlight. This works fine, brightness indicator, volume indicator, but nothing appears on for keyboard backlight. Will 12.04 eventually have a keyboard ...
1
vote
1answer
878 views

Attempting to change Keyboard Backlight levels changes theme

I'm using an Asus G74SX on Ubuntu 12.04. When I try to change my Keyboard Backlight levels my theme seems to change or crash to a backup. P.S. My Screen Brightness won't change if I use the keys or ...