0
votes
1answer
64 views

Why I cannot use the Fn + (up) to control the brightness?

I have a Lenovo zhaoyang K27 with Intel® HD Graphics 3000. Since I installed Ubuntu for the first time, about two years ago, I haven't been able to change the brightness by Fn+^. I found a solution in ...
0
votes
0answers
62 views

Unable to control brightness, ASUS F551MA/Intel HD

I am unable to control my screen brightness on my new ASUS F551MA with only ubuntu 12.04 installed. It has Intel HD graphics. I can't control my brightness nor with FN+F5/F6 nor with ...
0
votes
1answer
176 views

Intel Graphic 3rd with 12.4 “nomodeset” working but?

If i'm booting with "nomodeset" then can't change Brightness/Login/Logout/Suspend/Resume ..etc. Accidentally booted once without "nomodeset" everything was working ...
1
vote
1answer
738 views

Unable to change display brightness with Function keys or Brightness and Lock application in Ubuntu 13.10

I am having problem with Ubuntu 13.10 brightness control. My brightness shortcut keys (Fn + F5/F6) worked in 12.10 and 13.04 but they have stopped working in 13.10. I am using Sony Vaio SVE15113ENB ...
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 ...
0
votes
0answers
191 views

Brightness control Ubuntu 13.04 x64 is not working

Brightness control is not working on Ubuntu 13.04 64-bit Monitor: Samsung SA100 LED Processor: Core i5-4570 Video Card: Integrated Graphics Intel HD Graphics
0
votes
0answers
121 views

How to make Ubuntu remember gamma settings

I finally was able to make Ubuntu 12.04 remember my screen brightness. Seemed the only way it worked was putting xbacklight -set 80% to my startup programs. But how can I make it remember gamma ...
0
votes
4answers
1k views

adjust the brightness in 13.04

I have a dual graphics card: intel 4000 and nvidia 630m... I installed bumblebee and intel drivers from their website. I thought the brightness problem will be solved by installing these drivers. ...
1
vote
1answer
952 views

Modifying brightness control shortcut key bindings

I have a Toshiba Satellite R830 laptop with Ubuntu 13.04.1 64 bit. The Fn + F6 and Fn + F7 buttons adjust brightness until I put my laptop on sleep. On wakeup they don't work any longer. On Ubuntu ...
3
votes
2answers
329 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 ...
3
votes
2answers
843 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 ...
4
votes
1answer
2k views

Brightness control increments brightness by 4 instead of 1

The value of /sys/class/backlight/acpi_video0/brightness increments by four when the brightness controls are used, but I am able to force the value to anything in [0-10]. I have a HP Envy 17-3200. ...
1
vote
1answer
2k views

Screen flickering on Dell XPS when using mid-range brightness values

After a fresh install of Ubuntu, I discovered the function keys for screen brightness control (Fn+F4 and Fn+F5 in that case) are not functioning. Digging around here, I managed to get them to work by ...
4
votes
3answers
1k views

2 folders in Sys/Class/Backlight?

ISSUE: Backlight brightness does not change. More Detail: Brightness will not change, using both 'System Settings->Screen', or FN keys (Brightness bar shows and moves, but screen brightness does not ...
26
votes
6answers
30k 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 ...
13
votes
4answers
6k views

Is there an alternative to Redshift and F.lux which only dims the screen?

I want one where it reduces the screen's brightness, either by time or on demand (I don't mind). I have onboard Intel graphics. I don't want it to be like Redshift where it changes the screen's hue.
2
votes
0answers
319 views

Screen dimmed upon wake after standby [closed]

Sometimes upon resuming from standby I find my screen brightness dimmed to the lowest setting, even though the indicator says it's where I left it. If I use my brightness function keys I get the ...
2
votes
3answers
3k views

How to control display brightness on Intel hardware?

I'm working with a Sony Vaio BZ-12 Notebook and want to know how to manage the brightness of my display, especially when it's in eco-mode. The designated Graphic-Accelerator is the Intel GM45. With ...
1
vote
2answers
3k views

Brightness control not working on HP Pavilion dm3t (Intel GMA 4500MHD)

I picked up an hp dm3t laptop with intel HD graphics and installed ubuntu 10.10 64 bit on it. It works great -- the only problem is that the brightness controls on the keyboard don't work. The ...