Questions related to screen brightness.

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0answers
162 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
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0answers
107 views

Changing Brightness Xubuntu [13.10]

I cannot change the screen brightness on Xubuntu 13.10. I am running a Toshiba Satellite Laptop, using the proprietary fglrx AMD drivers, and have tried the acpi_vender etc. kernel parameters (do not ...
1
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1answer
110 views

Ubuntu boots up with full brightness [duplicate]

I have installed Ubuntu 13.10 in my samsung laptop,everytime i boot up the system it starts with full screen brightness which is quite annoying in the night. Is there a way to fix this problem so ...
0
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1answer
46 views

Brightness problem in Ubuntu 12.04 Precise Pangolin

I own a ACER ASPIRE5734Z that has a Pentium(R) Dual-Core CPU T4500 @ 2.30GHz × 2. I tried this solution,but did not work out: Open terminal ( Ctrl+Alt+T ) and type: sudo gedit /etc/default/grub ...
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0answers
35 views

is there any option to set brightness permanently in ubuntu desktop GUI ?

I have changed the brightness level permanently using terminal. temporarily we can change the brightness in GUI. but for permanently setting it, Is there any option in GUI mode? if not why such a ...
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0answers
109 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 ...
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0answers
285 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 ...
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0answers
83 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 ...
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1answer
83 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
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1answer
249 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 ...
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0answers
170 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 ...
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2answers
187 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 ...
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0answers
162 views

My Laptop Not Charging And Brightness Keys Not Working After Installing Ubuntu 12.04.3 LTS

I have Lenovo(G-505s) Laptop with per-installed windows 8. Recently I'm installed Ubuntu 12.04 through CD. But after installing my laptop battery not charging and my brightness keys not working in ...
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2answers
180 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
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0answers
299 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 ...
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0answers
13 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
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0answers
56 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 ...
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0answers
105 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 ...
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0answers
48 views

Blackscreen like DOS after press F5

This is the first time I use Ubuntu. (Actually, I've used Ubuntu 10.10 before, but now I'm going back to Ubuntu because my Windows encounters bugs and isn't stable) My trouble here with my Dell 14R ...
1
vote
1answer
129 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
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1answer
136 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
1answer
397 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 ...
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0answers
18 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 ...
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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
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1answer
202 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
1answer
113 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
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0answers
129 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
90 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 ...
0
votes
2answers
103 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?
0
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0answers
52 views

Ubuntu 13.10: Medion Aykoya P6630 Brighness changing issues

So I have tried a few things already with sudo gedit /etc/default/grub and changed the GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux ...
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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?
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0answers
71 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
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0answers
167 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 ...
1
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0answers
29 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 ...
1
vote
4answers
331 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
89 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
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1answer
78 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.
0
votes
1answer
437 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 ?
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0answers
62 views

Ubuntu 12.04 problems

I come in peace :) After paying a visit to couple windows alternatives here on Linux, like Debian, Mint and Fedora I realized that I prefer Ubuntu more, even with a Debian 7 being more stable, it ...
2
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0answers
184 views

Ambient light sensor support

I have a 2010 Sony Vaio laptop running Ubuntu 12.10, with an ambient light sensor installed to adjust screen brightness automatically. However, last time I checked, this was not supported by default ...
0
votes
1answer
793 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 ...
0
votes
1answer
1k views

13.10 - Bumblebee with Nvidia Optimus 750M - Stuck in high resolution (3200*1800) and drivers issues

Dear Ubuntu friends, I am a happy owner of a Dell XPS 15 9530 with Ubuntu 13.10 installed on it. Well... happy until yesterday. Although with some difficulties to install ubuntu on it (Intel smart ...
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0answers
30 views

Brightness and lock setting dissappeared from All settings panel

somehow I found that Brightness and Lock setting is missed from Settings panel. All other settings are working properly. Is there any way to bring it back?
0
votes
1answer
94 views

I unchecked “dim the display”, but it's still diming

I have problem on my asus k55a running ubuntu 13.10. I have unchecked "Dim screen to save power" in Brightness & Lock, but the screen is still dimming after a while. This is very annoying when I'm ...
2
votes
1answer
200 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 ...
2
votes
1answer
67 views

Adjusting default brightness upon boot

When I boot to ubuntu 12.04, the back light on my display turns off and I have to press the increase brightness button 4 times to get it to the desired brightness. Is there a terminal command I can ...
0
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1answer
47 views

The brightness of my laptop reset every reboot?

How to save the brightness in my laptop , so every reboot will stay the same and not changed .
0
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1answer
201 views

Cannot change brightness on Samsung rv411 laptop computer

I am using a Samsung RV411 s03 laptop computer. I have tried several linux distribution on my laptop computer; I have got a problem with them which is the brightness of the monitor cannot be changed ...
0
votes
1answer
386 views

My laptop boots with full screen brightness and full keyboard backlight

I meets a problem that my laptop boots with full screen brightness and full keyboard backlight. According to a post on Ubuntu forum for Macbook (http://ubuntuforums.org/showthread.php?t=1987790), it ...
3
votes
6answers
319 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 ...