Questions related to screen brightness.

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0
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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 ...
7
votes
7answers
15k views

display brightness problem with ubuntu 13.04

I have a Dell Inspiron 5520 with intel core i7 and AMD Graphics card. It used to work fine with Ubuntu 12.04 and Ubuntu 12.10. Now I tried to install Ubuntu 13.04 but i can't change display ...
1
vote
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 ...
1
vote
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 ...
0
votes
1answer
265 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 ...
2
votes
0answers
502 views

I Can't Adjust My Screen Brightness Using Fn+Arrow Left or Fn+Arrow Right (Acer Aspire V5) [closed]

I'm using Acer Aspire V5 (Windows 8). I have a problem regarding my screen brightness. Although I can still adjust it but I can't using Fn+Arrow Left or Fn+Arrow Right. I visited the ease of access on ...
0
votes
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: ...
2
votes
1answer
80 views

how to disable the animation of dimming the screen when ubuntu turns inactive screen off

When Ubuntu 13.10 decides to turn of inactive screen, it runs an animation for 15 seconds long, slowly dimming the screen. The purpose, I assume, is to give an interim for human intervention - a ...
0
votes
1answer
190 views

Backlight controls stop working once X starts

I'm using a Lenovo Thinkpad X120e with Ubuntu 12.04 LTS 64-bit and a Gnome 3.4 (gnome-shell) desktop environment. I have installed the latest proprietary AMD drivers (From their website) for the AMD ...
5
votes
1answer
1k views

How to adjust contrast with xcalib

I'm trying to adjust contrast on my laptop, a ThinkPad E430, running ubuntu 12.04: xcalib -co 70 -a xrandr --output LVDS1 --brightness 0.7 Either of them works only for 1-2 seconds and after that ...
3
votes
2answers
14k views

Stuck on Ubuntu boot screen

I recently download Ubuntu 12.04 LTS onto my Macbook Pro 5-5. Everything worked seamlessly, save for the brightness control. I couldn't change the screen brightness from the hardware buttons, nor from ...
3
votes
2answers
329 views

Ubuntu 12.10 can't boot on HP Mini 210-4000 and brightness problem

I've problem installing Ubuntu 12.10 on my HP Mini 210-4000 notebook with spec Intel Atom 2800 and Intel GMA 3600, after installation finish, and rebooting, the GRUB bootloader appear without any text ...
0
votes
0answers
58 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. ...
6
votes
5answers
4k 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
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?
1
vote
0answers
179 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 ...
15
votes
6answers
10k views

How can I change brightness through terminal

Now I can change it by Fn+ arrow right but now I need to do it via my shell script
2
votes
1answer
104 views

How to change screen brightness based on screen colors?

I would like to know if there is any way to change the screen brightness based on the screen predominant color. For example if I am browsing a web page with a lot of white color decrease the ...
0
votes
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 ...
0
votes
0answers
31 views

13.10 No WiFi, ethernet, sound or brightness control after trying to install Spotify

I'm relatively new to Ubuntu (and this is my first forum post). I upgraded to 13.10 not too long ago and it's been working fine. The other day I tried to install Spotify through terminal using the ...
0
votes
0answers
13 views

Backlight brightness Changing hangs system

my laptop Dell Inspiron N5010, Installed Ubuntu 13.04, While changing Screen brightness my lap hangs and have to long press power button to shutdown, In Ubuntu version 11.04 this problem not come. Is ...
0
votes
1answer
177 views

Intel Graphic 3rd with 12.4 “nomodeset” working but?

If i'm booting with "nomodeset" then can't change Brightness/Login/Logout/Suspend/Resume ..etc. Accidentally booted once without "nomodeset" everything was working ...
2
votes
1answer
69 views

Xubuntu 13.10: Only four levels of brightness?

Why do I have only four levels of brightness on my Dell Inspiron laptop, selectable by Fn+ArrowDown/Up? In Linux Mint Mate, I have 7 or 8, and so I have under Windows, on the same machine? This is ...
1
vote
2answers
3k views

Unable to adjust screen brightness on Gateway NV54

i have ubuntu 11.10 installed on gateway nv54. I want to install drivers for video card because the Screen brightness not changing.. But "Additional Drivers" not detecting anything. Graphics: Mobile ...
4
votes
3answers
1k views

Change screen brightness on a desktop? [duplicate]

I'm running Ubuntu 11.10 on a desktop, so I don't have fn, and the option doesn't appear in under System Settings > Screen as it apparently only appears if your computer is detected to be a laptop. ...
3
votes
2answers
848 views

Can I control brightness on second monitor?

I have a thinkpad (x301) with an external monitor connected via a DisplayPort to HDMI cable. I can control the brightness of the laptop monitor using the keys on the laptop, but I can't work out how ...
3
votes
4answers
3k views

Brightness Adjustment on Desktop Computer

I have Ubuntu 12.10 I need an application/software that can increase and decrease my brightness. I know I can do it through my pc monitor but I don't want that. I want to control it through a ...
1
vote
0answers
187 views

Does Brightness Control not work on desktop environments by design?

I am using Ubuntu 12.04 on a desktop and on a netbook. On the netbook, the brightness control works fine out of the box via GUI and hot keys. But on the desktop it does not. In the "Brightness and ...
4
votes
1answer
4k views

Is a brightness control widget available?

Is it possible to place a slider or some other GUI component on the desktop / Notification Panel on Ubuntu 12.04 to control the screen brightness? It's a little annoying to constantly have to go to ...
0
votes
1answer
72 views

Brightness doesn't work on desktop

I have a desktop assembled with one Intel board DH67CL, running UBUNTU 12.04 LTS. The problem is that I can't adjust the brigthness of the monitor, as I can do when running Windows 7. Looking for ...
0
votes
0answers
317 views

Backlight Controls Acer Aspire v5-572G

I know there are already a lot of similar questions regarding issues with no back light control with Acer models. I'm not having that issue anymore I followed the necessary changes needed in ...
1
vote
2answers
812 views

Unable to change the brightness on my Dell XPS 15 (L502X)

I am using ubuntu 13.04 and I am unable to change the brightness on my laptop and need a bit a help.
2
votes
2answers
144 views

Can you lock the Unity screen after 15 minutes, not shown in “Brightness & Lock” dropdown?

In Ubuntu 13.10, the Brightness & Lock dialog lets you lock the screen after idle time of 1, 2, 3, 5, 10, 30, and 60 minutes. Is it possible to set a different idle time not shown in this list, ...
2
votes
3answers
1k views

Brightness problem after upgrade Ubuntu 13.10

I have upgrade to 13.10 recently. But, the brightness is working after I add this in version 13.04 before. After I upgrade to 13.10, this code is not working on ASUS Slimbook X401U #!/bin/sh -e # # ...
3
votes
5answers
5k views

Changing the brightness stopped working in 13.10 Saucy Salamander

After the upgrade to 13.10 Saucy Salamander, the brightness controls stopped working. This worked fine from 12.04 throughout. Does anyone have an idea how I can fix this? If not, can you point ...
1
vote
1answer
1k views

Brightness bug after upgrading Ubuntu 13.10

I had Ubuntu 12.10 on my PC, and I did the upgrade to Ubuntu 13.10. But now I have a problem with brightness control, it is always on maximum level and I can't set it neither with fn nor with ...
0
votes
0answers
59 views

MSI GE70 Screen brightness

I've tested pretty much every option I could find online regarding getting to dim my screen brightness which is at max right now, but most solution i've found are controling the brightness through ...
7
votes
8answers
2k views

How to increase brightness in smaller steps?

Is there a way to adjust lighting step ? I have Lenovo L520, and Fn + Light Up or Down adjusts by 20%, how can I adjust the step to 10% ? it will help me fine tune lighting at my dark room.
0
votes
0answers
15 views

Need help diagnosing (random) dark screen

I have seen many threads on ubuntu 12.04 black screen (actually, mine is really dim screen. I can still see Guake terminal popping up the background, everything works fine, the screen is just really ...
0
votes
0answers
22 views

Delay pressing volume or screen bright buttons

I have a ASUS NS53, running the last version of Lubuntu right now, 13.10. All the keys works fine, but when I press the volume buttons, or screen buttons, there is a random delay of 1 second (For ...
0
votes
0answers
43 views

dumb power setting ensure dim screen all the time

It's quite dim, but when I unplug, it gets brighter. Funnily enough, when the battery gets critical it goes dim again, and if I plug it in in a dim state it finally gets bright with the power plug ...
11
votes
5answers
16k views

How to make Unity remember brightness settings?

This question has been asked many times for Ubuntu 11.10 but it always has been closed and linked with this link, but that accepted answer is from 2010 and that setting doesn't work anymore for Ubuntu ...
0
votes
0answers
26 views

Monitor turning off randomly. [Workaround exists]

I installed Ubuntu 13.04 on a machine with pre-installed Windows 8 using the options acpi_osi=Linux acpi_backlight=vendor I was unable to change the brightness of the system using the function ...
1
vote
1answer
347 views

Sony Vaio brightness [Radeon 7500M/7600M Series] in ubuntu 12.10

I bought a Sony Vaio with windows 7 preinstalled. Now I have a lot of problem installing Ubuntu, but I was able to install Ubuntu, but now the brightness doesn't work as needed. With lspci I get: ...
0
votes
1answer
148 views

can't control the brightness on Ununtu 13.10

I have Ubuntu 13.10 in my dell inspiron 3521 with Intel core i5 and graphics of Intel Ivibridge Mobile. I can adjust the brightness of the screen. All the solutions that I found was to try to change ...
0
votes
0answers
225 views

Brightness locked in dim after downloading ubuntu 13.10

I have a netbook Samsung N 100 on which I installed ubuntu 13.10 before restarting the machine the brightness was perfect but as soon as I restarted it the brightness got dimmed. I tried everything fn ...
1
vote
2answers
281 views

Unable to change Brightness Ubuntu 13.04 Toshiba Satellite A105

I have a Toshiba Satellite A105 s4384 running Ubuntu 13.04 and for some reason I cannot change the brightness. Neither the function keys (Fn + F6/Fn + F7) nor the settings work, and it is really ...
1
vote
2answers
276 views

Laptop brightness

I have just installed Ubuntu 13.10 and trying to adjust my laptop screen brightness. My laptop Dell studio 1558 has a key to change the screen brightness, though I reduced brightness to zero, I still ...
1
vote
1answer
62 views

Setting which brightness determines screen brightness

I'm having an issue running Kubuntu 13.04 with brightness, something that seems common. In particular, brightness can be found in these 2 directories: /sys/class/backlight/acpi_video0/brightness ...