Questions related to screen brightness.

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3
votes
1answer
148 views

Save screen brightness adjustment?

My laptop is Thinkpad T400 and I am running 14.04. Every time I decrease the brightness of my screen, it will be back to 100% next time I reboot. How can I save the adjustment and apply it once for ...
0
votes
0answers
62 views

Gnome 3.12 brightness does not work

In Gnome 3.12 the brightness slider in the user menu does not work, My video card is an Nvidia GeForce 210 with two monitor connected. I searched for a solution using Google to no avail. Anyone have ...
1
vote
1answer
56 views

Brightness Get Maximum at Every Restart [duplicate]

Brightness is not remembering it's last state. It make full brightness at every restart. I don't want that, I want my brightness(specific) -echo 50/6. Just it should remember my last brightness ...
1
vote
0answers
112 views

Strange boot issue (purple screen)

I'm somewhat of a noob when it comes to this kind of stuff, but I am a computer science student so I am familiar with operating systems. Anyway, I'll try to be as detailed as possible in describing ...
0
votes
0answers
39 views

Rewriting Fn key brightness functions

When doing Fn+Brigthness, the backlight goes in increments/decrements of 50%. So either no light, 50% light, or full light. I wanted to do it in steps of 10 so I installed xbacklight and tried to map ...
1
vote
1answer
153 views

Can't adjust screen brightness ((

Can't adjust screen brightness from anywhere. Nor by specific buttons on the laptop keyboard, nor by setting in "brightness and lock" I've tried to configure the grub file like it mentioned in a lot ...
0
votes
0answers
114 views

Pipelight Video is Dark on Netflix, Amazon Instant Video

I installed pipelight, and it is working, I can see the picture, but it is very dim. It's like the brightness is turned down. I am also getting good sound. This is when streaming Netflix and Amazon ...
0
votes
0answers
27 views

Brigtness not working on HP Pavillion G6

So, I have read many questions about this with answers that I am sure worked for other people. I have an HP Pavillion G6 with Ubuntu 14.10 on it. To get my computer to start up I have to edit the Grub ...
0
votes
2answers
49 views

Grub can't be saved after modification

I have Ubuntu 14.04 32 bit machine on my lenovo g580. Default brightness keys are not working and can't decrease brightness in settings also. The brightness has been fixed at maximum. I followed few ...
10
votes
5answers
8k views

Decrease Backlight Below Minimum

I have this laptop that doesn't handle the backlight very well. In /etc/default/grub, I have added a acpi_backlight=vendor function to get it to work at all. Which is cool, and the backlight now ...
0
votes
1answer
97 views

Laptop screen turns off automatically while using Ubuntu 14.04

I am using dual boot Ubuntu 14.04 and Windows 7. My laptop screen turns off automatically after some time in Ubuntu while the system still remains on. I have checked my brightness and screen settings ...
0
votes
0answers
78 views

Problem, cannot set brightness on Lenovo Z570

My problem is that I cannot set brightness using fn+arrows and any other way. I'm currently using elementary os base on 12.04 and that problem is not showing, but on every ubuntu with higher number I ...
1
vote
1answer
146 views

Can't change brightness at all [duplicate]

Here is what it looks like when I go to the "change brightness" option. I am booting in recovery mode because when I boot to normal Ubuntu mode there is nothing you can see on the screen, I can only ...
0
votes
0answers
73 views

Suspend and hibernate break brightness adjustment

I am currently using Ubuntu 14.04 (architecture is amd64) with kernel version 3.13.0-44-generic on an HP Pavilion g7-1350dx. Output of lspci | grep -i vga to find GPU is as follows: 00:01.0 VGA ...
0
votes
0answers
62 views

How to increase Kubuntu 14.04 brightness range?

Hold your horses!. If you are hurrying to flag this as a duplicate of this question or this question, none of those have an answer to what is asked here. Thanks for the attention though. In ...
8
votes
3answers
3k views

Ubuntu 14.04 Brightness issue with nvidia Quadro

I recently upgraded from Ubuntu 13.10 to 14.04. Everything is fine, except the brightness of my laptop screen. When I change the brightness the screen simply does not respond. I figured this was a ...
0
votes
0answers
12 views

Run script when connecting power cord? [duplicate]

I have this really annoying problem where my screen's brightness goes to maximum whenever I connect the power cord to the laptop. Is there a way to run a script every time this happens so I can lower ...
0
votes
1answer
144 views

Flex 2 not waking up from sleep in Ubuntu 14.04, brightness controls also not working

I have a Lenovo Flex 2 with AMD A6 CPU and 4 GB RAM. It came pre-installed with Windows 8.1. I installed Ubuntu 14.04 on it (single boot). But I am facing problems as the laptop does not wake up from ...
0
votes
0answers
69 views

Screen brightness issue

I am having a problem with Ubuntu on my Netbook (Samsung NP-NC108-A09ID). The problem is: When I try to change the brightness to a higher or lower level, nothing happens.
0
votes
0answers
43 views

Brightness is not decreasing in ubuntu 14.04 in my hp laptop

My laptop is d006tu and d009tu,when I am using Ubuntu 14.04 LTS I am unable to use function keys to control brightness?
0
votes
2answers
213 views

Ubuntu 14.04 stuck at console mode after graphics driver update

Actually I wanted to correct the well known Ubuntu brightness issue as addressed in this YouTubeVideo In essence, the guy says to change the Nvidia driver from open source to any other proprietary ...
0
votes
0answers
20 views

Volume shortcut keys working; brightness shortcut keys not working [duplicate]

I recently installed Ubuntu 14.04 on my Toshiba L840D with an AMD A8 CPU and an AMD Radeon HD 7640G GPU. Everything works as expected, except for the brightness shortcut keys. When I press F2 or F2 ...
1
vote
0answers
110 views

Screen Brightness Hotkeys with NVIDIA Graphics Card

I just installed the Ubuntu 14.04 and I'm loving it. I've used other versions before, but it's getting better and better. But there's one problem: screen brightness. I use an LG R570 laptop, with an ...
0
votes
0answers
26 views

Brightness resets after changing it manually

Every time I use the shortcut keys or xbacklight to change my screen brightness, it reverts a second later to no backlight. For example, I run xbacklight -set 50 and the screen brightens for a second ...
0
votes
0answers
89 views

Low brightness Ubuntu 14.10

I have an Asus X550LN with NVIDIA 840m + Intel HD 4400 but since i've installed ubuntu 14.10 the brightness is too low although in the system settings is at maximum. Some help? Fn+f5 or Fn+f6 works ...
8
votes
1answer
777 views

Display problem when adjusting brightness in ubuntu 12.04

Recently I installed Ubuntu 12.04 on my Dell 1554 laptop. I was adjusting my screen brightness when this happened : this has become a recurring problem which is really annoying. I also want to ...
2
votes
2answers
2k views

Ubuntu 14.04 LTS: FN-Brightness Key Stopped Working

Hello dear Ubuntu Community, After i installed some Ubuntu Updates on my PC,my FN-Key stopped working. (But i can still change it in the System settings. I tried many ways to fix it trough the ...
4
votes
1answer
433 views

Unable to change screen brightness with hotkeys on Ubuntu 14.10

Just upgraded to Ubuntu 14.10, and now my brightness keys aren't working. Is there a fix for this? I suspect that Linux kernel 3.16 is the culprit...
0
votes
2answers
202 views

How to set brightness level even lower than default minimum? [duplicate]

I am an ex-Windows user, I noticed that minimum level of screen brightness on ubuntu is way brighter than minimum level on windows when I was using it on the same hardware. I was wondering if I can ...
0
votes
1answer
121 views

Change default behavior of Fn+Funtion key

I have the latest version of Ubuntu 14.04 installed on my Toshiba Satellite C55D-B5212. All of the Fn key combinations work correctly except the brightness down and brightness up ones (Fn+F2 and ...
5
votes
3answers
3k views

Change the brightness adjustment interval

So whenever I hit my dim/brighten keys on the keyboard, a notification bubble pops up with the screen brightness. All that's fine, but I would like to be able to change how much the brightness changes ...
0
votes
1answer
61 views

Low brightness Ubuntu 14.10

I have an Asus F550LNV-DM092H with NVIDIA 840m + Intel HD 4400 but since i've installed ubuntu 14.10 the brightness is too low although in the system settings is at maximum. Some help?
0
votes
0answers
164 views

14.04 LTS on Toshiba Satellite C75D-B. Brightness, WiFi, Fn-keys control and Suspend problems

This is a new laptop that I just bought. Came with Windows 8.1, now is a dual-boot. Sound Controls and Mute work with F9, F10, F11 like they do in Windows, but F12 for WiFi, F2 and F3 for brightness ...
0
votes
1answer
73 views

laptop monitor brightness always maximum upon charging

My laptop monitor brightness is set to maximum whenever I connect it to charging. I have gone to the brightness settings and changed this, but the problem repeats when I charge my laptop again...what ...
1
vote
1answer
224 views

Laptop brightness too low on Ubuntu 14.10

recently I switched to Ubuntu Gnome 14.10 64 bits on my laptop and I'm having some issues with the brightness. At first I couldn't change with the hotkeys, but I have already fixed it. The problem now ...
0
votes
1answer
697 views

Ubuntu 14.04 brightness problem (Lenovo Z500)

My brightness controls weren't working before but I didn't really care, but somehow I lowered my screen brightness while downloading league through playonlinux. Now the brightness controls aren't ...
0
votes
0answers
26 views

Boots to black screen only from hard drive [duplicate]

I have an ASUS X200MA that came with Windows 8.1. I got it to dual boot with Ubuntu 14.04 and I have used it for months. It suddenly ( perhaps after running a windows update ) started turning off the ...
0
votes
1answer
198 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
1answer
215 views

Ubuntu 14.04 LTS Brightness Problem

Yesterday I downloaded Ubuntu and installed it on my laptop (Sony Vaio PCG-71811M), with Windows 8.1 dual boot. I really liked Ubuntu, and i don't think I want to delete Ubuntu and turn back Windows. ...
0
votes
0answers
27 views

Turning the brightness down makes screen brighter

My brightness slider is the wrong way around! For example when I drag the brightness slider to its lowest my display is at full brightness and when I drag it further it goes dimmer. I am running ...
0
votes
0answers
179 views

How to stop brightness changes (screen dimming) on low battery?

Ubuntu 14.10 automatically adjusts screen brightness on low battery. It does so despite explicitly being set not to. How to prevent this behaviour? I'd like the brightness to stay on the manually ...
2
votes
4answers
186 views

Is there any brightness control for desktops?

I'm using Ubuntu Trusty tahr and I've noticed that there is no brightness control (like a slider), In windows I'll use Intel's graphics media accelerator to reduce brightness but here it looks ...
29
votes
9answers
51k 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 ...
7
votes
6answers
23k views

Screen brightness not working

I use Ubuntu 12.04 on my Sony Vaio(VPCCW2HGX). At the first times, brightness control works well, but after the activating additional drivers(nvidia accelerated graphics driver) brightness control ...
11
votes
4answers
6k views

Brightness control on Awesome windowing manager

I have just installed Awesome WM and I have no options to change the screen brightness, and also its shortcut doesn't working. Any one can help?
3
votes
6answers
8k views

Brightness control doesn't seem to work on a Toshiba Satellite M115 laptop

I have Ubuntu 12.04 LTS on a Toshiba Satellite M115 laptop. The brightness control doesn't seem to work with the "brightness and lock" setting or fn+f6 and fn+f7 (which usually works in Windows). How ...
3
votes
0answers
129 views

Lowest brightness setting turns backlights off

I am running Ubuntu 14.10 on a Laptop. When I turn my brightness to the lowest setting it actually turns my backlights off and my entire screen goes black as if my computer was turned off. I have ...
4
votes
4answers
6k views

14.04 Asus g56jr Fn + Brightness control

I have recently installed Ubuntu on my new Asus G56Jr laptop. I noticed that despite all the other Fn+fX keys are working, the screen brightness does not. I have already tried editing the grub, as ...
0
votes
1answer
113 views

Brighness controls on Toshiba Tecra

The brightness controls do not have any visible effect on my Toshiba Tecra W50. I tried every combination of acpi_brightness=vendor and acpi_osi=Linux to no avail. How can I change my screen's ...
0
votes
1answer
201 views

Screen dim while brightness set to max on Xubuntu 14.04 everytime display turns off

I used to have an issue where every time my laptop would return from suspend, the screen was fully dim (as if brightness was at a minimum) even though the brightness setting was set to maximum - so I ...