-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 ...
1
vote
1answer
2k views

Display brightness setting not working in sony vaio SVE151117F

I have sony vaio SVE151117F, ubuntu 12.10.I used to see brightness animation upon pressing Fn+F6,F5 but not actual brightness of screen. I have tried to implement as said in ...
2
votes
1answer
694 views

Keyboard backlight command by percentage

I want to make a keyboard shortcut to increase and the decrease the keyboard backlight brightness. The command I have for full brightness is: echo -n 100 > ...
0
votes
0answers
63 views

Brightness does not change, although notifications make it look like it does

I have a Toshiba Satellite S855-S5170 with Ubuntu 12.10. I am unable to change the screen brightness. Fn+F6 and Fn+F7 move the brightness indicator, but the actual brightness does not change. I ...
0
votes
1answer
202 views

How to get the oBacklight solution to brightness problem working?

I can set the backlight using xrandr (although the mouse pointer stays sharply bright) but If I suspend the laptop, after waking it up it is on max brightness again. I have a Dell 17 L702x and I have ...
0
votes
0answers
182 views

Brightness Controls not working VAIO AMD Radeon

I installed Ubuntu 12.10 alongside with Windows 8 (UEFI). Brightness controls are not working, neither from keyboard shortcut nor Settings -> Brightness and Lock. I also tried editing grub file, but ...
0
votes
0answers
827 views

Why does the brightness control not work?

I installed Ubuntu 12.10 on a Sony vpc cw18gf. I can not decrease or increase brightness and my Fn key does not work. My brightness and lock settings are as in this image: I tried both pages ...
0
votes
2answers
5k views

Ubuntu 12.10 can't adjust brightness on my laptop

I can't adjust the screen brightness on my HP 2000-2b09WM 15.6-Inch Laptop. Everything is standard on this machine. I have absolutely no idea where to start. Any help would be welcome, as I can only ...
2
votes
0answers
318 views

ATI HD 6320 ASUS Brightness doesn't change

When i press Function + [F5 or F6] to increase or decrease the brightness, the adjustment display on top right pops out and the slider moves but the screen brightness remains the same. i've done ...
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 ...
3
votes
2answers
328 views

Ubuntu 12.10 can't boot on HP Mini 210-4000 and brightness problem

I've problem installing Ubuntu 12.10 on my HP Mini 210-4000 notebook with spec Intel Atom 2800 and Intel GMA 3600, after installation finish, and rebooting, the GRUB bootloader appear without any text ...
1
vote
0answers
94 views

Easy brightness control

I came from linux mint they had a really nice applet for adjusting the brightness. Is there something like that, or can it be done by hotkeys or something? I am on ubuntu 12.10.
0
votes
1answer
322 views

Ubuntu 12.10 w/ Kernel 3.7.0.7 and Open Source Driver RESUME/BRIGHTNESS CONTROL

I am using an Inspiron 7520. I got a AMD Radeon HD 7730m running in switching with an Intel 4000 HD. I have updated my Open source drivers with xorg edgers and x-swat. I am running on the kernel 3.7 ...
0
votes
2answers
619 views

Brightness with AMD/Intel open source drivers Ubuntu 12.10

I have an issue with the screen brightness of my computer. I have a Dell Inspiron 7520. I have a AMD Radeon HD 7730m 2gb with a Intel HD 4000, I am currently using the kernel lastest kernel from ...
3
votes
3answers
338 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 ...
2
votes
1answer
643 views

Brightness does not change on Asus K55n laptop

I have tried setting different acpi_os, acpi_backlight=vendor, changed the kernel to 3.7.4, and yet nothing happens when I use the FN + F5/F6 keys to change the brightness. KDE recognizes it and will ...
1
vote
2answers
2k views

Brightness controls are not working in sony vaio with amd radeon hd 7650

I have a Sony Vaio SVE15116EN with AMD Radeon HD 7650 graphics card. I am currently using Ubuntu 12.10. My brightness controls are not working but sound controls are working fine. I have also tried ...
2
votes
1answer
947 views

Cannot change brightness on my laptop (Lenovo ThinkPad Edge E535)

I recently installed Ubuntu 12.10 on my laptop but I am frustrated by not being able to increase or decrease the screen brightness by using neither the keyboard controls nor the brightness slider in ...
2
votes
1answer
1k views

Brightness controls don't work on Macbook - Stuck on high (Nvidia GeForce 9400M)

I am using a Macbook (Aluminum Late 2008 version) and dual booting ubuntu 12.10 After installation the keyboard controls for volume and brightness worked perfectly,but a few days later the brightness ...
0
votes
0answers
345 views

Ubuntu 12.10 mouse and brightness control issues

I have upgraded to ubuntu 12.10 recently and found some issues. Mouse keeps disappearing randomly. It appears when we move the mouse. Brightness control not available in brightness&lock in ...
1
vote
1answer
653 views

Brightness works with Function (FN) Keys in Lubuntu 12.10 but not Ubuntu 12.10

I have a Toshiba Portege R930 laptop and installed Lubuntu 12.10 through Wubi and then installed the Ubuntu-Desktop package afterwards. When in Lubuntu, pressing FN+F6 and FN+F7 lowers and increases ...
1
vote
1answer
465 views

Brightness hot keys on Thinkpad T420 with Ubuntu 12.10 [closed]

I have been testing Ubuntu 12.10 on my Thinkpad T420 (with nvidia optimus, yes) and over the last couple of days I've made 10-20 clean installs. Every install I've (until now) has had the brightness ...
1
vote
0answers
1k views

Brightness Control Keys on Sony Vaio not working on 12.10

Hi everyone i'm having a problem that for what i have seen its very common with the latest version of ubuntu. So I updated my graphics drivers on my laptop to the latest nvidia ones but now my ...
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 ...
7
votes
4answers
12k views

I cannot change the screen brightness

here's my problem: Ever since I installed Ubuntu 12.10 on my computer I haven't been able to change the screen brightness, it was always set to the maximum. I did take a look at this post: Decrease ...
1
vote
0answers
396 views

Ubuntu 12.10 neither shuts down nor reboots properly

(HP dv6-6180eg, Intel3000/ATI 6770M) Although there have been several questions posted about this issue, I'm still not able to find a solution. FYI, it's not possible to toggle the screen ...
1
vote
1answer
2k views

12.10 upgrade broke brightness keys [closed]

I have been running Ubuntu (64-bit) on my HP 6710b laptop (Core 2 Duo with integrated graphics) for several years, and the backlight brightness keys have always worked. Since I upgraded to Ubuntu ...
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
4
votes
4answers
5k 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?
0
votes
2answers
603 views

Macbook Pro late 2011 screen brightness issue

The keys to set the screen brightness work properly but everytime I reboot, the screen brightness is reverted to 100%, which is very annoying. I've already tried to add the following lines to ...
2
votes
3answers
493 views

Video brightness unreadable on a Dell Inspiron 9400

I have a Dell Inspiron 9400 with an NVidia GeForce Go 7900 GS video card. After upgrading from 12.04 to 12.10, my video brightness decreased to the point where I can hardly read the screen. I have ...
1
vote
1answer
829 views

Screen brightness keys don't work

I read the same problems but I didn't find an answer. I can change my brightness by slider in "brightness and lock" but when I press the key button it goes to lowest level and when I press the other ...
13
votes
3answers
1k views

Macbook Pro 5.5 brightness settings work, are remembered, but are not used on startup

This question's similar to various others in the forum where users' brightness settings either don't work or are not remembered: Brightness controls doesn't work on a MacBook Pro 5.5 (ubuntu ...
4
votes
5answers
3k views

Can't adjust brightness on a Sony Vaio T13 ultrabook

I recently installed Ubuntu 12.04 alongside Windows 7 in a Vaio T13 ultrabook. I cannot use the the Fn+F4 or Fn+F5 to change the brightness. The bubble appears indicating that brightness is being ...