Questions related to screen brightness.

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0
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0answers
70 views

Brightness Issues on HP Pavilion 15-n042se Notebook PC

I have installed Ubuntu 12.04 LTS, I found that I can't control the display brightness with the hotkeys (F2 and F3) or even from GUI (Brightness and lock screen), I don't have any control on the ...
0
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0answers
161 views

Can't adjust screen brightness on lenova y410p

Can't adjust screen brightness on lenova y410p. I'm running unbutu 13.10. I tried different answers on here but nothing seems to work. I changed GRUB_CMDLINE_LINUX in /etc/default/grub to include ...
1
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0answers
79 views

fn + Up and fn + Down both increase brightness, notification not showing when doing so(Lenovo z570)

When I installed Ubuntu on my Lenovo z570, with Ubuntu 13.10 I couldn't manage to get the brightness to change. I read some of the solution to similar problems people had and I played around with ...
-1
votes
3answers
4k views

fn keys for brightness not working on an hp 6735s

I use ubuntu 11.10 on hp 6735s, fn keys work for sound adjustment, but for brightness %98 of the times not working, I mean till now only maybe three or four times it worked. always I must set the ...
0
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0answers
107 views

Adjust screen brightness in Ubuntu 12.04 LTS (Packard Bell Easynote R4622 laptop)

I have a Packard Bell R4622 laptop running Ubuntu 12.04 LTS 32 bit. I turned the brightness down with the function keys because the screen was too bright, but now it is too dark and I cannot turn it ...
0
votes
2answers
1k views

Can't adjust the brightness on Ubuntu 13.10

I've got a new laptop ( Lenovo Thinkpad E145 ) and I can't adjust the brightness. When I press the brightness adjustment keyboards, I can see the window that appears top right corner which is showing ...
0
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0answers
315 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
2answers
185 views

Unable to change brightness using keys after recent 13.10 update

I have been using Ubuntu 13.10 for months now without too many hassles. But a couple of days back, my system offered to install this major update and of the many things that have gone wrong, the most ...
4
votes
2answers
205 views

Fade in after inactive mode

Using Brightness & Lock I can set the time when the computer will go to inactive mode: Turn screen off when inactive for [1 minute]. After the time set, the screen fades out and then it ...
1
vote
1answer
828 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 ...
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vote
2answers
3k views

How do I get the brightness control working on an HP 6735s?

I can't change the brightness on my screen via hotkeys or any other method. I'm stuck with low brightness which is very hard on my eyes during long periods in front of my laptop. Is there any working ...
1
vote
2answers
124 views

Why is my Laptop Brightness reset to minimum after every restart?

I have an Acer Aspire 6930G with an Nvidia 9600MGS and Ubuntu 12.04 LTS. Every time I turn off my computer and then turn it back on the brightness is always set back at the lowest possible level. I ...
0
votes
3answers
9k views

How can i make Brightness Control work?

I have Xubuntu 12.04 with latest updates on Toshiba Satellite A210-15K laptop semen@bloknot:~$ uname -a Linux bloknot 3.2.0-24-generic #37-Ubuntu SMP Wed Apr 25 08:43:22 UTC 2012 x86_64 x86_64 x86_64 ...
0
votes
2answers
94 views

Brightness in Ubuntu 13.10

I have installed Ubuntu 64-bit 13.10 today. But the brightness is too much even in the least possible value. How can I change it?
1
vote
1answer
923 views

Screen brightness for hp probook 4540s doesnt work?

I have applied $ gksu gedit /etc/default/grub Code: If you change this file, run update-grub afterwards to update /boot/grub/grub.cfg. For full documentation of the options in this file, see: info ...
3
votes
5answers
2k views

Can't adjust screen brightness on Macbook Pro 10,1 Ubuntu 13.10

I recently installed Ubuntu on my retina Macbook Pro (following this great guide). Everything works fine so far however the screen brightness / backlight cannot be adjusted neither by using the ...
2
votes
1answer
2k 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
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0answers
175 views

Xubuntu Brightness not working

I am trying to gain the ability to change the brightness on my Toshiba Satellite laptop running Xubuntu. I have xbacklight, and am running xfce4-power-manager with the --no-daemon flag. It's not ...
1
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0answers
12 views

Screen brightness reset to minimum after every reboot on HP Pavilon DV4. HELP [duplicate]

Ubuntu 13.10 doesn't save my brightness settings between sessions. Everytime I boot up, the brightness is always at zero, and I always have to set it back to my preferred setting (at maximum). How can ...
2
votes
0answers
53 views

Black screen after screen off on 13.10

I swtiched "Turn screen off when inactive for" to 3 minutes and Lock screen after screen goes off to on. The problem is that after the screen is off, when I try to come back I can`t do anything, the ...
1
vote
1answer
163 views

Changing Brightness on netbook

I am using Asus Eee PC R051CX. I am unable to boost up brightnes of my screen. While I was trying ubuntu 12.04 from live img from usb stick it was good, but after installing on local hard disk screen ...
0
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0answers
99 views

Ubuntu 13.10 on Dell Inspirion N5010: Problems with Bluetooth and brightness

I install Ubuntu 13.10 64bit on my Dell N5010 laptop and I have also installed proprietary drivers for my ATI Radeon HD5650 and wireless card. I have noticed that Ubuntu didn't recognized my ...
1
vote
1answer
104 views

How to retain LCD brightness after reboot

I frequently test different linux Distros and recently found a 'feature' that I would like to know how to turn on in Ubuntu. In my testing of Fedora 20 I noticed that it retained the LCD brightness ...
0
votes
1answer
278 views

No brightness control in Ubuntu 12.04, Lenovo V570

I have been struggling now for an inordinate amount of time trying to get the brightness adjustment working in Ubuntu. I am running Ubuntu 12.04 on a Lenovo V570 Laptop. I have tried all of the ...
0
votes
1answer
126 views

Brightness in ubuntu 12.04

Well this is a common problem as i have seen through my google searches but i didn't manage to find any satisfactory solution so far. I got my laptop recently which came with windows 8 pre-installed.I ...
0
votes
0answers
17 views

Trying to install and keeps going to white screen

I downloaded Ubuntu on my computer so that I could burn it to a DVD-r disc, and now I am trying to put it on my daughter's laptop (her computer crashed). The Ubuntu purple screen showed up, then a ...
6
votes
4answers
2k 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 ...
4
votes
4answers
3k views

Cannot adjust brightness on my Packard Bell EasyNote TS11HR-127GE laptop

I am using Ubuntu 12.04 LTS on my Packard Bell EasyNote TS11HR-127GE laptop and I cannot adjust the brightness. If I change the slider, the brightness is always at maximum. My laptop is using NVIDIA ...
2
votes
3answers
2k views

Can't change brightness on Packard Bell LM86

I got a Packard Bell EasyNote LM86 and the problem is I cannot set the brightness. I have tried with both the hotkeys which is Fn and either F11 to turn down and F12 to turn up. I have also tried ...
4
votes
2answers
688 views

How to increase the amount of steps of brightness adjustment-key

The screen of my laptop (Dell Vostro 3460) supports 16 levels of brightness: Not only according to the manufacturer, but also as is clear from two OSs: Both Windows 7 and Ubuntu (dual-booted) support ...
1
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2answers
514 views

Packard Bell TS11HR-068GE brightness control doesn't work

i did search in google but haven't find anything about this problem for my model laptop: Packard Bell TS11HR-068GE the graphic card is: NVIDIA GeForce 610M i am newbie on linux & ubuntu, so pls ...
0
votes
0answers
15 views

Why am I not able to lower my screen brightness? [duplicate]

I modified the brightness in the brightness settings and locked it but the brightness in the screen did not change. I have ubuntu 13.10, but with previous versions you could not change, my computer ...
0
votes
1answer
119 views

Dell Inspiron 14r Display Problem- Tried Everything

I know there are a million posts about this, but I have been on this forum for hours and haven't found a solution to my problem. Like many people, my brightness keys don't work and I am looking for a ...
2
votes
0answers
80 views

Brightness stuck at full after suspend HP Pavilion G6 12.04

I have an ongoing problem with my linux install where brightness seems to get stuck at full after my laptop suspends. Before suspend, the hotkeys work fine. After suspend the hotkeys still bring up ...
0
votes
0answers
119 views

Various troubles with Ubuntu 12.04 LTS (Toshiba Satellite)

I installed Ubuntu 12.04 LTS on my Toshiba Satellite C660D-1FV a few days ago. Although the OS is updated, I'm experiencing some problems like: When 2 or more applications are simultaneously ...
0
votes
0answers
74 views

Screen Brightness on Acer AspireV: bar appears, brightness doesn't change

Using 12.04 on an Acer Aspire V5-561-9410. When I use the function keys to modify screen brightness (or use any solutions I've found here to this problem like the one found here or here), I see the ...
3
votes
6answers
8k views

How can I adjust brightness settings when I am on battery?

I can't find brightness settings that work from battery mode in the Ubuntu 11.10 screen settings. There are some settings from Ubuntu 11.04 in gconf, 90% for AC and 60% for battery, but it doesn't ...
1
vote
3answers
2k views

Brightness Hotkeys Only Slightly Work

I just installed Precise on my Samsung Laptop (QX412-S01au, using Ubuntu 2D). The brightness hotkeys sort of work: Adjusting the brightness using the slider in the control panel works just fine ...
0
votes
0answers
19 views

how to install video driver for laptop lenovo 20157 in ubuntu 13.10 [duplicate]

I have a laptop of lenovo g580 model no 20157 Recently I installed Ubuntu 13.10, I am not able to increase or decrease the screen brightness. What can be done?
1
vote
0answers
55 views

How can one increase the timeout before the display dims when on the battery?

If I do not touch my computer (a Toshiba Satellite) for 15 seconds when running off the battery, the screen dims to the lowest brightness. I have already disabled "Dim screen to save power." I do not ...
0
votes
0answers
157 views

Ubuntu 13.10- Brightness hotkeys not working

I recently upgraded to Ubutnu 13.10 with a fresh install. It used to work fine with the last Ubuntu install I had (12.04). All of my normal hotkeys work (sounds, wireless, displays) except for the ...
10
votes
4answers
14k 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
1answer
74 views

brightness can not be controlled in sony vaio laptop

Brightness is not varying. The screen is seemed to be in maximum brightness. Help me somebody please.
1
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0answers
26 views

Brightness determined by eveness and oddness of level numbers

I have a Lenovo G500s laptop on which I installed Ubuntu 13.10, and I am having problems with my brightness, which does not rise and fall gradually but instead alternates between the maximum and ...
0
votes
1answer
620 views

Lenovo G510 with 12.04 LTS issues

I have a few problems with my recently purchased notebook lenovo G510 and as a beginner I do not know how to solve those problems. to the point: my AMD Radeon graphic is not worknig at all and the ...
1
vote
4answers
213 views

How to decrease the brightness in Samsung RV509?

I'm using a Samsung RV509 laptop with Ubuntu 12.04 LTS. Can anyone help me to decrease the brightness in my laptop?
3
votes
1answer
83 views

Brightness is reset to Maximum on every Restart in Ubuntu 13.10

I have upgraded from 13.04 to 13.10. After every reboot the brightness is set to maximum. Is there any solution?
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
6answers
273 views

How do I get my ASUS laptop to start at the right brightness level?

I want to make it so my laptop starts at a low brightness level, which is comfortable for my eyes and easy on the laptop's battery. I found some instructions here on AskUbuntu, and so by using this ...
0
votes
1answer
319 views

How do I fix the brightness on a Lenovo Ideapad S210? [duplicate]

I have installed Ubuntu 13.10 on my Lenovo Ideapad S210 touch and everything works fine except the screen brightness which cannot be adjusted. How can I fix this problem ?