Questions related to screen brightness.

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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 ...
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0answers
50 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 ...
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2answers
80 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?
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36 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
32 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 ...
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0answers
134 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 ...
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0answers
23 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 ...
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4answers
94 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?
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1answer
68 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?
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1answer
64 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.
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1answer
162 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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59 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 ...
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0answers
47 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 ...
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1answer
299 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
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1answer
687 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
22 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?
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1answer
55 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 ...
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1answer
131 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
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1answer
54 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 ...
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1answer
40 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 .
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1answer
66 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
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1answer
115 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 ...
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6answers
240 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 ...
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1answer
205 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 ...
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1answer
62 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.
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0answers
34 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 ...
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0answers
21 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 ...
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6answers
521 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 ...
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0answers
43 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 ...
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0answers
105 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 ...
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0answers
41 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 ...
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0answers
31 views

Powermanagement & touchpad questions

i'm a new ubuntu user, just installed about an hour ago. But the first thing i noticed is that there are basically no power management features in ubuntu for laptops (or a lack of information), ...
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1answer
99 views

How can control my brightness of the display on hp nseries laptop

I just bought a new laptop and i have installed windows 8 and ubuntu 12.04 on it. And while using ubuntu i am not able to control my brightness with the dedicated keys or the softwares such as ...
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0answers
73 views

Which program handles the screen backlight in 13.10?

What is the name of the program that handles the screen backlight in laptops in 13.10? Where are the settings for that program? I need to switch the brightness file that it uses. I have 3 brightness ...
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0answers
82 views

Ubuntu 13.10 on a Samsung 900X3C keyboard light and hotkey light

i have a Samsung np900x4c and I've installed ubuntu 13.10. But i have problems. 1.Problem: I can use my hotkey for example wifi on/off so i can turn off the wifi but the led status doesnt change it ...
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0answers
36 views

Cannot change my Screen Brightness

though I am Pressing Brightness Keys on my laptop.The brightness is still not changing But Showing Change in Progress Bar of Brightness Setting. Hardware Spec: Intel Pentium Dual Core 2.1 GHz 64 bit ...
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1answer
449 views

Wireless driver Lenovo Flex 14 Ubuntu 12 Ultrabook

I recently bought a Lenovo Ideapad Flex 14 and the wireless card is not working and there are issues with the brightness when I start the computer. I tried the tips that are already given for the ...
0
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1answer
343 views

13.10 brightness flickering MSI Wind U100

Vanilla install of Ubuntu 13.10 on my MSI Wind U100. Intel graphics card I think. Auto brightness flickers up and down, brightness hud display top-right also flickers. Interrupts input so need to ...
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0answers
47 views

Why my screen brightness adjusting is now working?

Ubuntu 13.10 screen brightness adjustment didn't work for a very long time so I couldn't adjust the brightness of my screen. But now it just worked. I need to identify how was it fixed. I don't ...
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0answers
71 views

Display brightness goes all the way up or all the way down when I make slight adjustement

I just fresh installed Ubuntu 13.10 on a MSI MS-16362 laptop. When ever I try to increase the display brightness with Fn + F5 or decrease it with Fn + F4, the brightness amount either goes through ...
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0answers
56 views

Ubuntu+Gnome3 screen not dimming

I have an Ubuntu installation with Unity and Gnome3. When I log in using Unity, if the system is inactive for X minutes, the screen will dim. When using Gnome3 the screen never dims. Under ...
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1answer
77 views

Brightness slider gone, and the brightness is constantly jittering

I've just installed a clean version of 13.10 on my MSI U123. Before I've used 12.4 without a hitch. As soon as I entered the brightness and lock settings window the brightness starts to flicker and ...
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1answer
263 views

Can't change brightness on a Acer Aspire v5-171

i found a solution on a site but i don't manage to do it You need to enter acpi_backlight=vendor in /etc/default/grub boot options for the brightness keys to work. Brightness can be adjusted with ...
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0answers
38 views

How to keep changes after reboot? [duplicate]

One month ago i changed my laptop brightness settings in GRUB like this Step: Replace this line GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" with GRUB_CMDLINE_LINUX_DEFAULT="quiet splash ...
0
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0answers
38 views

Cannot change the amount of time before the screen turns off

I'm using ubuntu 13.10 and I cannot change the amount of time before the screen turns off. I access the settings and then the Brightness & Lock. I see a scrolling menu that looks like that: ...
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0answers
57 views

no notification when I change brightness and/or volume

I user Ubuntu Gnome 13.10 (Gnome Shell 3.8). When I change the volume or brightness via hotkeys or my volume +/- buttons on my keyboard I do not get the notification in the middle of the screen. ...
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0answers
23 views

Ubuntu maxes brightness after lock

If I press Ctrl+Alt+L, brighness level sets to the maximum. It started from latest "Ubuntu base" update. How to disable this?
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0answers
178 views

reduce laptop screen brigtness below minimum

This is not duplicate of http://superuser.com/questions/560445/dim-screen-past-the-minimum-on-ubuntu . I have already tried the solution mentioned in the above article. my laptop configuration is dell ...
0
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1answer
84 views

problem with screen brightness [duplicate]

I'am using Ubuntu 13.04 on Lenovo G500 -E when i turn my laptop computer on the brightness of screen is 0 and i need to increase the brightness to see the screen is this problem related to Ubuntu ...