Linked Questions

0
votes
1answer
1k views

Ubuntu 13.10, brightness settings issue [duplicate]

I haven't experienced any issues when 13.10 is installed on my desktop but after installing it on my laptop (Fujitsu LifeBook) the brightness settings seem to default to the dimmest setting and even ...
0
votes
1answer
330 views

Brightness Control In Samsung RV 509 [duplicate]

I have recently installed Ubuntu 12.04 on my Samsung laptop RV509 with Nvidia grahics card but brightness remain unchanged. How can I make the brightness control work?
1
vote
0answers
14 views

Brightness reduced after installation [duplicate]

After installing Ubuntu 13.04 the display brightness of my laptop has reduced. Increasing the brightness in system settings makes no change. Can you help me tackle this problem?
0
votes
0answers
10 views

fix brightness after kde uninstall [duplicate]

i installled a kde update first by accident and then i got kde to install after anyways i hated it and unistalled but i realise now my fn+-> dosnt control my brightness can anyone help me fix this and ...
26
votes
8answers
37k views

Unable to change brightness in a Lenovo laptop

Brightness adjustment keys <Fn + ⇑/⇓> have no effect (although they are recognized by the environment), and I can't change the brightness using GUI tools as well. This seems like a problem in ...
2
votes
7answers
22k views

Can't adjust screen brightness on Ubuntu 12.04LTS

My laptop is Samsung NP-Q430-JS03US. I have searched for the solution. I have tried editing grub acpi_osi=Linux and acpi_backlight=vendor, but still didn't work. Please help.
0
votes
1answer
9k views

Unable to adjust brightness in Ubuntu/Xubuntu/Lubuntu13.04

I've recently upgraded to Xubuntu 13.04 and noticed that I'm unable to use the brightness keys to adjust the brightness of my screen. I've tried just about everything this thread suggest and I'm still ...
4
votes
3answers
1k views

Can I control brightness on second monitor?

I have a thinkpad (x301) with an external monitor connected via a DisplayPort to HDMI cable. I can control the brightness of the laptop monitor using the keys on the laptop, but I can't work out how ...
0
votes
1answer
3k views

samsung laptop brightness issue? can,t change brightness on my laptop [closed]

I have installed windows 7 on my samsung laptop,but there is no effect of brightness when i press fn keys,brightness remains same.what can i do? i m very worried! please help me.
0
votes
1answer
4k views

Brightness control works only in Ubuntu, doesn't in Xubuntu/Lubuntu/Kubuntu/Mint (Toshiba Satellite L30)

All tested OS were in latest versions (12.04.1 and Mint 13 Mate&XFCE). Already tried xfce panel aplet for screen brightness, acpi_backlight=vendor argument in GRUB_CMDLINE_LINUX_DEFAULT and ...
3
votes
2answers
2k views

How to prevent Ubuntu from changing screen brightness?

I have recently installed 12.04 on ASUS-K53SV-V300. I can change the brightness on start-up with: echo 0 > /sys/class/backlight/acpi_video0/brightness >> /etc/rc.local or manually by Fn ...
1
vote
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 ...
1
vote
2answers
402 views

Unable to change Brightness Ubuntu 13.04 Toshiba Satellite A105

I have a Toshiba Satellite A105 s4384 running Ubuntu 13.04 and for some reason I cannot change the brightness. Neither the function keys (Fn + F6/Fn + F7) nor the settings work, and it is really ...
2
votes
2answers
512 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 ...
2
votes
2answers
365 views

Is there a way to make Ubuntu adjust the screen brightness automatically?

Does anybody know where I can find a program (or system setting) which turns up the brightness automatically when my laptop is plugged in to AC and turn down the brightness when disconnected from AC? ...

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