0
votes
0answers
17 views

Function keys not working on Toshiba C-50-B

I purchased a Toshiba C-50-B-P-0010 about a week back, it did not come pre-installed with any OS. I have installed Ubuntu 14.04. The function keys are not responding properly. If i press F3 which is ...
0
votes
0answers
52 views

How do I get the OSD for brightness hotkeys on Kubuntu 14.04 KDE 4.13?

I am using KDE SC 4.13.2 on Kubuntu 14.04 (64-bit). The screen brightness changes with the brightness hotkeys on my keyboard (Lenovo G500) but the OSD showing the brightness level does not appear. The ...
2
votes
2answers
297 views

14.04 Asus g56jr Fn + Brightness control

I have recently installed Ubuntu on my new Asus G56Jr laptop. I noticed that despite all the other Fn+fX keys are working, the screen brightness does not. I have already tried editing the grub, as ...
0
votes
0answers
40 views

Brightness not changing Dell 15r SE and ubuntu 12.04

With my current laptop I can't change my brightness anymore I tried xbacklight -set 50 (nothing happened) and also changed this line grub_cmdline_linux_default= "quiet splash" to ...
0
votes
0answers
44 views

HDAJackRetask issue

I have hp pavillion m6 running Ubuntu 14.04. Yesterday I followed a tutorial (http://ubuntuforums.org/showthread.php?p=12489414#post12489414) to fix my beat audio issue , after click at "Install boot ...
1
vote
1answer
565 views

Toshiba Satellite P850 FN-Keys not working

I could solve several other issues with my laptop thanks to this forum. The only thing I can't figure out is the non working FN-Keys for the brightness. Volume control is fine. Two things I found out ...
0
votes
1answer
69 views

Dell laptop screen brightness is not working after upgrade from 12.04 to 13.10

I tried with GRUB_CMLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor" and sudo update-grub but did not worked.Please help me out
0
votes
1answer
219 views

Brightness function keys problem

I have an HP 650 notebook, and I just finished installing ubuntu 13.10 . The problem is that brightness function keys don't work ( f2 and f3 ). I tried changing GRUB_CMDLINE_LINUX_DEFAULT and updating ...
0
votes
0answers
387 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 ...
2
votes
1answer
187 views

I don't have notifications when changing the brightness

In order to have the brightness feature working on my EeePC (Ubuntu 13.10, kernel 3.13), I had to add to my /etc/default/grub : GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux" It was ...
1
vote
0answers
575 views

Backlight Controls Acer Aspire v5-572G

I know there are already a lot of similar questions regarding issues with no back light control with Acer models. I'm not having that issue anymore I followed the necessary changes needed in ...
1
vote
1answer
651 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 ...
1
vote
2answers
1k views

Ubuntu 12.04 Backlight Problem, Function keys not working

I have ubuntu 12.04.2 LTS AND i recently updated my system. There was a kernel update also. I tried several solutions on net. Like This , this and none of them worked for me. I put that ...
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 ...
7
votes
7answers
8k 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 ...
0
votes
1answer
720 views

Lenovo Y400 ubuntu 12.04 can't change brightness

The ubuntu seems to be always on the max brightness. I cannot change the brightness. Really strange. What I have tried: 1 Install the latest Nvidia Driver does not work 2 change x sudo gedit ...
1
vote
0answers
400 views

Asus ux42vs brightness control key Fn+5, Fn+6 does not work

I have installed on my notebook asus ux42vs ubuntu 12.10 All fn keys seems to work fine, but brightness keys does not work. I've tried to config it usiong this question Why are the screen brightness ...
4
votes
4answers
6k views

Why are the screen brightness keys on my ASUS N56VZ not working?

All the Fn + Key work except F5/F6 which control the screen brightness. How can I get them to work?
2
votes
2answers
1k views

Ubuntu 12.04 Wifi/Brightness Fn Keys don't work

I have scoured the Internet trying to find a solution to my problem. I have a Toshiba L755D-S5171 and like many people the Fn key works to a very small extent. The Fn+3/4 works to vol-down/up ...
4
votes
1answer
2k views

Specific function keys not working

My Toshiba C800 laptop (12.04 LTS desktop) has special function keys as follows: fn + : F2 -> BRIGHTNESS DOWN F3 -> BRIGHTNESS UP F4 -> DISPLAY SELECT F5 -> TOUCH PAD on/off F6 -> PREVIOUS ...
1
vote
1answer
736 views

Setting brightness [duplicate]

Possible Duplicate: fn + arrow keys don't adjust actual brightness on an Acer Aspire 5740 I've just bought the new acer aspire s3. I've installed ubuntu 12.04: it works really well but ...
2
votes
2answers
2k views

Can't adjust brightness on Samsung RV420 with fn keys

Typing ls /sys/class/backlight/*/brightness outputs /sys/class/backlight/intel_backlight/brightness /sys/class/backlight/samsung/brightness The max_brightness for the second is 8, but changing it ...
1
vote
5answers
4k views

Function keys are not working on Toshiba Satellite L510 so brightness control is not possible

I am using Toshiba L510 AND Ubuntu 12.04. I Cannot control brightness of my system using function keys. What could be the cause?