Questions related to screen brightness.
1
vote
1answer
181 views
Brightness and actual backlight mismatch after reboot
This is not a duplicate of this or that!
The problem in detail
The brightness hotkeys works well in increasing or decreasing the brightness, but if the brightness is less than 100%, after a reboot ...
2
votes
3answers
2k views
How to control display brightness on Intel hardware?
I'm working with a Sony Vaio BZ-12 Notebook and want to know how to manage the brightness of my display, especially when it's in eco-mode.
The designated Graphic-Accelerator is the Intel GM45.
With ...
0
votes
1answer
64 views
If not in charge monitor decrease brightness when not active [closed]
On my notebook I've installed Ubuntu 12.10. If not connected to the power supply after few seconds of inactivity the system will decrease the brightness. The problem is that as soon the computer is no ...
2
votes
2answers
831 views
Ubuntu 12.04 Wifi/Brightness Fn Keys don't work
I have scoured the Internet trying to find a solution to my problem.
I have a Toshiba L755D-S5171 and like many people the Fn key works to a very small extent.
The Fn+3/4 works to vol-down/up ...
1
vote
1answer
363 views
Cannot change brightness on my laptop (Lenovo ThinkPad Edge E535)
I recently installed Ubuntu 12.10 on my laptop but I am frustrated by not being able to increase or decrease the screen brightness by using neither the keyboard controls nor the brightness slider in ...
1
vote
0answers
1k views
Ubuntu 13.04 64bit. Brightness doesn't work on Lenovo Yoga 13 [closed]
There is solution for 12.10, but it doesn't work for 13.04.(Build from 28February)
Any idea what is wrong with 13.04 version and how to fix it?
Additional info:
In /sys/class/backlight/ I have: ...
2
votes
1answer
3k 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 ...
2
votes
1answer
217 views
How can I save my laptops battery from draining? [duplicate]
I am using ubuntu 12.04 (switched from windows 8 recently) and I am finding that this OS is draining my laptops battery like anything (works only like 70% of windows).
I also found this interesting ...
0
votes
0answers
259 views
Nvidia breaks brightness controls. Editing xorg.conf, installing pommed and changing grub doesn't help
Hardware: 13" MacBook Pro 5,5 (Summer 2009), GeForce 9400M.
OS: Ubuntu 12.04.2 AMD64
My hardware and OS are similar to what some others with this problem had, but what worked for them doesn't work ...
3
votes
2answers
1k views
Lenovo Y500 can't set brightness
I've installed Ubuntu 12.10 on a Lenovo Y500 laptop (2012), video card is Nvidia 650M (no integrated graphics), I'm using driver 310.19. The problem is that I can't adjust brightness at all. If I ...
2
votes
0answers
57 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 ...
1
vote
0answers
38 views
Graphics driver troubles
I have an hp pavilion g6 and have just recently switched to ubuntu 12.10 but im having issues with the graphics driver, the graphics are really slow and the brightness wont change and is stuck on max. ...
0
votes
1answer
360 views
screen brightness flickering
After installing ubuntu 11.10 screen started flickering between two brightness levels i gues its not hardware issue because everything worked perfectly fine on windows which i have been using before ...
1
vote
1answer
74 views
no brightness control on macbookpro 7.1 ubunto 12.04 [duplicate]
i have been trying to fix my brightness issue on my macbookpro 7.1 running snow leopard tried almost all suggestions. but nothing worked. tried modifying xorg.conf but it tells me i dont have ...
0
votes
0answers
42 views
Brightness controls long press not working
I am using Ubuntu 12.10 on my Dell Studio 1557 laptop.
Long press on fn Key for volume works just fine but it is a little bit of an annoyance that long press of fn key for brightness controls dont ...
1
vote
0answers
128 views
How can I change brightness on Toshiba Satellite c855-21m?
I can't change the settings for brightness. In fact, it doesn't matter if the Fn keys work or not. I would like just to decrease brightness.
For example, using brightness-indicator I get a message ...
0
votes
0answers
47 views
Changing the brightness creates lag
Changing the brightness on my laptop is very laggy. It's an Acer Aspire 5735z with Ubuntu 12.10 installed. How do I fix the issue?
0
votes
2answers
402 views
Brightness with AMD/Intel open source drivers Ubuntu 12.10
I have an issue with the screen brightness of my computer. I have a Dell Inspiron 7520. I have a AMD Radeon HD 7730m 2gb with a Intel HD 4000, I am currently using the kernel lastest kernel from ...
3
votes
2answers
248 views
Brightness control stuck on Acer Aspire One
After doing a pretty exhaustive search and trying every possible solution I've found on this lovely forum (no joke), my screen brightness is stuck on max. I'm running Ubuntu 12.04. Seems to be a ...
0
votes
0answers
235 views
Backlight brightness at Toshiba Satellite L850-DJS Ubuntu 12.10
I have bought laptop Toshiba Satellite L850-DJS. I replaced windows8 with Ubuntu 12.10, and I have problem: screen backlight brightness doesn't changing anyway.
I installed ATI proprietary video ...
1
vote
4answers
2k views
Can't adjust the brightness on a Toshiba C665 laptop
I had installed Ubuntu 12.04 i my Toshiba Laptop Satellite C665-I5011
In this I am not able to change the LCD brightness. When i press Fn+F6 or Fn+F7 the brightness bar is changing but the LCD ...
1
vote
0answers
72 views
Easy brightness control
I came from linux mint they had a really nice applet for adjusting the brightness. Is there something like that, or can it be done by hotkeys or something? I am on ubuntu 12.10.
0
votes
1answer
292 views
Ubuntu 12.10 w/ Kernel 3.7.0.7 and Open Source Driver RESUME/BRIGHTNESS CONTROL
I am using an Inspiron 7520. I got a AMD Radeon HD 7730m running in switching with an Intel 4000 HD. I have updated my Open source drivers with xorg edgers and x-swat. I am running on the kernel 3.7 ...
0
votes
2answers
271 views
Lubuntu 12.04 change screen brightness. Lenovo ThinkPad
How do I change the screen brightness in Lubuntu 12.04?
The screen brightness is stuck in a very bright mode and it's quite uncomfortable.
0
votes
0answers
77 views
How can I prevent 12.10 from always booting on minimum brightness?
I'm running Windows 7 and Ubuntu 12.10 dual-boot. I have one issue, my brightness.
Every time I restart, the brightness is on the lowest. I have to set it manually each time to the highest.
Is there ...
3
votes
2answers
794 views
How to prevent Ubuntu from changing screen brightness?
I have recently installed 12.04 on ASUS-K53SV-V300. I can change the brightness on start-up with:
echo 0 > /sys/class/backlight/acpi_video0/brightness >> /etc/rc.local
or manually by Fn ...
-1
votes
1answer
196 views
Ubuntu 12.04 booting suddenly with low screen brightness
I have no remembrance of having done anything but now my ubuntu 12.04 always boots with very low screen brightness.
I can then adjust it with FN+Pos1.
I have a Lenovo X220.
Neither xbacklight nor any ...
0
votes
0answers
113 views
ASUS UX32A fn keys
I have an ASUS UX32A. I am un able to adjust my keypad and display brightness using fn keys, most of them dont work.
I cant find a fix.
Also when laptop goes to sleep the keyboard does not illuminate ...
5
votes
3answers
5k views
Screen brightness not changing on Acer 5742 notebook
Screen brightness is not changing on my ACER 5742 notebook. I have Ubuntu 10.10 installed inside Windows 7 OS. Hotkeys are used for changing brightness. Though, a bar displaying brightness level ...
0
votes
0answers
88 views
No Blacklight with Nvidia 310.14 driver
With the new Nvidia 310.14 experimental driver I have essentially no backlight on my laptop screen. xbacklight and xrandr report the brightness as 100%, but its literally like the backlight is ...
1
vote
1answer
352 views
Brightness works with Function (FN) Keys in Lubuntu 12.10 but not Ubuntu 12.10
I have a Toshiba Portege R930 laptop and installed Lubuntu 12.10 through Wubi and then installed the Ubuntu-Desktop package afterwards.
When in Lubuntu, pressing FN+F6 and FN+F7 lowers and increases ...
0
votes
0answers
157 views
Thinkpad W520 brightness modification requires suspend
I have a Lenovo Thinkpad W520 with 12.10 installed on it. The specifics are:
Linux corellia 3.5.0-19-generic #30-Ubuntu SMP Tue Nov 13 17:48:01 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
It works ...
-1
votes
1answer
472 views
Samsung N135 Brightness won't stop cycling after 11.10 upgrade [closed]
I updated my netbook to 11.10 last night. This morning I find my screen will not stop cycling through the brightness setting. Fn key doesn't respond and it's actually using up all of my system ...
0
votes
0answers
84 views
I'm not able to calibrate color or adjust brightness in my screen
hello everybody i'm a proud newbie on Ubuntu, I have a Toshiba Satellite M505, since I installed Ubuntu on it, I haven't been able to adjust brightness. any ideas everyone?
1
vote
1answer
648 views
Brightness keys don't work on a Toshiba Satellite L655
I have a laptop toshiba satallite L655 with ATI Radeon HD 5650.
I have a problem in my super key for the brigthness.
When ever i press FN+f6 or FN+f7 to increase or decrease the light, nothing ...
2
votes
3answers
2k views
Backlight Issue - Samsung RV509 Notebook
I installed Ubuntu 12.04 today on my Samsung RV509 Notebook (Nvidia Geforce 315M) and the backlight brightness controls don't work on it.
I did some digging around the web and found the samsung tools ...
18
votes
6answers
17k 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 ...
1
vote
2answers
4k views
Unable to change brightness on a Toshiba L750
So, as a number of users seem to be experiencing, I am unable to change brightness on my laptop. Using the Brightness and Lock in settings, the slider moves but brightness does not adjust. The fn keys ...
1
vote
1answer
290 views
Brightness does not change on Asus K55n laptop
I have tried setting different acpi_os, acpi_backlight=vendor, changed the kernel to 3.7.4, and yet nothing happens when I use the FN + F5/F6 keys to change the brightness. KDE recognizes it and will ...
3
votes
2answers
1k views
Adjust brightness and contrast on an Acer Aspire as5750?
I have an acer aspire as5750. With the intel hd 3000 graphics.
When i use the adjustment function keys the dial moves but it doesn't translate to the screen diming. Same with the dial in linux ...
2
votes
1answer
471 views
Remap function keys to commands?
I'm running Ubuntu 12.04 on a Samsung Series 9 (900X3A-A03), and changing the brightness through the function keys or the brightness control UI causes flickering and general instability, so I have a ...
5
votes
5answers
9k 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 ...
1
vote
1answer
417 views
Sony VAIO E Series - SVE15129CGB with ATI 7570 HD: Screen Brightness Adjustment
I have been running Ubuntu for a long time now! But since I installed it on my VAIO I just can't adjust the brightness. The Fn button does not work (although it does work for the volume adjustment), ...
0
votes
0answers
48 views
How to link the brightness screen change to the GUI
My laptop is a Acer 5750G.
I cannot change the screen brightness of my screen via the GUI but i can change it via the Terminal according to the directions on this answer:
...
0
votes
0answers
141 views
Not able to change brightness [12.04]
I can't change my brighness via the default ubuntu tool or my FN keys, or even xbacklight.
I'm running Ubuntu 12.04 on a laptop with a dual graphics (AMD HD6770M+Intel). I've the drivers set up ...
1
vote
1answer
204 views
Is there an iMac brightness gadget/widget?
So I'm running Ubuntu 12.04.1 on an iMac G5 with PowerPC architecture. I know there's this thing called fblevel that can adjust screen brightness, but I don't really know how to use it, and I really ...
1
vote
1answer
385 views
Changing brightness under Unity completely hangs the system
I have a Dell latop and Ubuntu 12.04. The system will completely hang when I try to adjust the brightness either through the function buttons or through the system's brightness manager module. This ...
1
vote
1answer
347 views
Does the order of kernel parameters matter when adding acpi_backlight=vendor?
I am running 12.10 on an HP DV7-6197CA.
I had fan issues which I was able to correct by changing this line in GRUB;
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
to:
GRUB_CMDLINE_LINUX_DEFAULT="quiet ...
2
votes
1answer
768 views
Brightness controls don't work on Macbook - Stuck on high (Nvidia GeForce 9400M)
I am using a Macbook (Aluminum Late 2008 version) and dual booting ubuntu 12.10
After installation the keyboard controls for volume and brightness worked perfectly,but a few days later the brightness ...
3
votes
2answers
2k views
Brightness Problem Gradually Changing At Every Restart
I am using Ubuntu 12.10. Whenever I restart my Laptop my system brightness is changing.What settings should I make so that brightness doesn't change on every restart
