Questions related to screen brightness.

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0
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1answer
195 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 ...
0
votes
0answers
105 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
0answers
313 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 ...
0
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0answers
123 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 ...
1
vote
2answers
123 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
173 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
vote
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 ...
0
votes
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 ...
0
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0answers
40 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
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
125 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
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
0answers
16 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 ...
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
116 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
79 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 ...
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?
0
votes
0answers
48 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 ...
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 ...
1
vote
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 ...
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
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.
0
votes
1answer
315 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 ?
0
votes
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 ...
1
vote
0answers
117 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
613 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 ...
0
votes
0answers
24 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
77 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
175 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
62 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
votes
1answer
43 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
votes
1answer
132 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
226 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
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
347 views

Ubtunu 12.04 x86_64 Which Proprietary Nvidia Driver for nVidia GT216GLM [Quadro FX 880M] supports brightness controls on Lenvo W510?

I have a Lenovo W510 and installed Ubuntu 12.04 onto it (64 bit). The device is certified for Ubuntu: http://www.ubuntu.com/certification/hardware/201101-6974/ However that certification page ...
0
votes
1answer
72 views

screen brightness not changing after installing ubuntu 12.04. set to minimum

I installed ubuntu 12.04 32 bit on my 64 bit dell inspiron (core i3) laptop. but after installing it the screen brightness is set to minimum and the brightness up/down keys dont function.
1
vote
0answers
47 views

Key Repeat functionality doesn't work on certain keys (Ubuntu 12.04)

I'm running Ubuntu 12.04 on a Macbook Pro and key repeat (when I hold down a key) is not working for any of the brightness buttons (keyboard backlight and screen brightness). Is there any way to ...
0
votes
0answers
26 views

brightness not changing after plugging back the charger

When the charger is plugged in the brightness is at its max. When I remove the charger the brightness become 0. When I plug back the charger the brightness stay 0. So I must change it manually. I ...
7
votes
6answers
866 views

Changing brightness at startup

My Lenovo T440s starts up with maximum brightness. Following this thread I have tried to alter rc.local, but this does not work. When I execute the command cat ...
0
votes
0answers
52 views

cannot adjust brightness in Dell N4030 having Ubuntu 12.04

Recently, I installed Ubuntu 12.04 LTS as dual boot along with my Windows 7 64bit.But i'm unable to adjust brightness in my Dell N4030. Even i'm unable to adjust brightness using the keyboard function ...
0
votes
0answers
161 views

How do I adjust screen brightness / backight on a Toshiba Satellite C50D?

I know this is a known bug, it been asked and answered thousands of times before. I've spent the past couple of months searching for a solution and all have failed. My Fn keys won't adjust brightness ...
0
votes
0answers
68 views

Why isn't there an easy way to change key bindings?

Whenever I search for a way to change key bindings in Ubuntu, the only thing that comes up is xbindkeys. I'm sure that program is good for complicated bindings, but all I want to do is use the ...