Fedora Hardware :: Can't Adjust Brightness Of Display On Buttery Power Mode
Feb 9, 2010Can't adjust brightness of display on buttery power mode Have no controller, such as in the tab "On AC Power"
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Ubuntu :: Can't Adjust Display Brightness
May 28, 2010Ubuntu 10.04 lucid with gnome-power-manager installed on a HP elitebook 8530p. FN keys and desktop display applet will not adjust the display. when I first boot my display is pretty bright with either it plugged into ac or not until i either plug or unplug for the first time then the display dims some, but will not get bright again plugged or unplugged, also /proc/acpi/video/DGFX/LCD/brightness shows it set to 100% at all times it never changes. I'm using the ati driver tried running aticonfig --acpi-services off, but it made no difference. It worked fine in karmic and ibex. I'm out of ideas on how to fix this one. Can anyone point me in the right direction on what to try next?
View 5 Replies View RelatedFedora :: Adjust Screen Brightness
Mar 13, 2011Running F14 on Dell Studio 14 with LCD screen and US keyboard selected. After initial power on the keyboard selection of "Windows Key" + F4 will dim the screen and the "Windows Key" + F5 will brighten the screen. When being used, either combination will also show a meter on the screen to display the adjustment of the brightness. When the lid is closed the computer is set to suspend by default. After the computer is brought back from suspend the keyboard short cuts no longer control the brightness and the meter does not appear on the screen. I have not found any other way to control the brightness and I have to restart to get the keyboard short cuts to work again.
View 5 Replies View RelatedFedora :: Adjust LCD Brightness (backlight) From Command Line?
Jul 10, 2010I'm writing a script to toggle LCD backlight on my laptop between minimum and previous/current level. I will then assign this script to a button. For this I need to be able to adjust backlight by using some command line utility. Also, this must be possible to be performed by a regular user.
What I have already tried:
1) The "xbacklight" utility. This didn't work. Program reported something like "no outputs found".
2) Used "acpitool -l <backlight_level>". This didn't work either.
3) The "echo -n 100 > /proc/acpi/video/VGA/LCD/brightness" works only when I am root. Changing permission of the file to allow writes by a user only valid until reboot. After reboot I need to change permission again, so this approach is not good either.
What works on my laptop, but with GUI:
1) Adjusting LCD brightness in "System->Preferences->Power Management" works.
2) Adjusting brightness with Gnome Brightness Applet works. However, after changing brightness with applet it says "Cannot get laptop panel brightness" and shows red crossed circle icon. Even after applet shows this message, it is possible to change the backlight level. It seems like the brightness level cannot be retrieved by the applet/system, but it can be set.
I can see that it is definitely possible to adjust LCD brightness through software because of the 2 things above, but how do I allow any user to change it from command line?
So, what are my other possible choices for changing backlight from command line?
Ubuntu Multimedia :: No Display - Monitor Go Into Power Saving Mode
Feb 4, 2010All of a sudden today there was no display on my Ubuntu PC. It seems to be powering on - I get the LG screen when the monitor is switched on - but it goes into "Power Saving Mode". How do I diagnose this? I already unplugged and plugged. Monitor is connected to a graphics card - no change when I switched to VGA.
View 2 Replies View RelatedUbuntu Networking :: Alfa AWUS036H Adjust Power - Unknown Transmit Power Information
Jun 21, 2010I am using Ubuntu 10.04 64-bit and I purchased a new ALFA AWUS036H wireless card. I would like to know if this "1Watt" wireless card is configured for full power. iwlist wlan0 txpower results:
wlan0 unknown transmit-power information. Current Tx-Power=27 dBm (501 mW). It appears to me that I should be able to increase the power. "iwpriv wlan0 highpower 1" does not work. Do I need to patch the new default driver that comes with Ubuntu 10.04 64-bit with the aircrack one following these directions:[URL]...? Monitor mode and a injection tests seem to work fine with the driver I have installed.
Ubuntu :: How To Adjust Brightness
Jul 31, 2011I just recently installed Xubuntu 11.04 and I want to adjust the brightness levels. I tried using the corresponding buttons on my laptop, but they aren't working. Where can I find the brightness settings on the OS?
I tried this thread: [URL] , but "Power Manager" didn't have that setting.
Fedora :: Stop Power Management Adjusting Screen Brightness?
Jul 12, 2011I have Fedora 15 gnome 3 installed on my new laptop. When my system runs on battery my power management keeps changing my screen brightness. It keeps dimming my backlight. In the GUI of Power Management I cant find any option to change this setting. How can I do that through Command Line
View 4 Replies View RelatedOpenSUSE :: Adjust The Brightness In Gnome?
Oct 4, 2010How do I adjust the brightness in Gnome?
View 9 Replies View RelatedUbuntu :: Cannot Adjust Screen Brightness V 10.04
Jun 3, 2010I cannot adjust the screen brightness in the power management menu. I can access the window and move the scroll bar, but there is no change.
I am on v 10.04 32bit , a Benq joybook s35.
It was working just fine on the previous version of ubuntu.
Ubuntu :: Can't Adjust Screen Brightness
Jun 23, 2011My computer (Samsung R580 N330M)seems doesnot adjust brightness both power manager and configuration file in /proc, I tried NVIDIA setting and it works,but I think it changes the color,not LCD. is it caused by driver problems?
View 3 Replies View RelatedGeneral :: Any Way To Adjust Screen Brightness
Nov 12, 2010I have a low end 7" CnMBook running modified Debian OS. Is there any way to adjust the screen brightness, if possible by adding a Fn command Up and Down?
View 4 Replies View RelatedSlackware :: Adjust The Monitor Brightness?
Feb 24, 2011Researching this problem, I find very often this solution:
Code:
echo -n 100 > /proc/acpi/video/VGA/LCD/brightness
Unfortunately, I don't have that on my old PC:
Quote:
ls -F --group-directories-first /proc/acpi/
button/
[Code].....
Debian :: Can't Adjust Screen Brightness Using Fn Keys?
Nov 24, 2015When I first install debian I couldn't change the screen brightness at all not manually nor with function keys, but I tried some of the solutions I found on the internet and now I can change the brightness manually (from the power management or the battery icon) but when I use the function keys it takes them like 2 to 3 minutes to respond and cause the system to hang (even mouse curser not responding) and then I'm forced to manually reboot the system, here is some information :
Code: Select all$ ls /sys/class/backlight/
acpi_video0 intel_backlight
Code: Select all$cat /etc/default/grub
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'
[Code] .....
And I've tried this:
Code: Select allsudo -i kwrite /usr/share/X11/xorg.conf.d/20-intel.conf
And I add the following in this file
Code: Select allSection "Device"
Identifier "card0"
Driver "intel"
Option "Backlight" "intel_backlight"
BusID "PCI:0:2:0"
EndSection
Hardware :: Adjust Brightness Of A CRT With No Physical Controls On It?
Jan 2, 2010dont say xgamma, i need brightness/contrast not gamma
View 2 Replies View RelatedGeneral :: Unable To Adjust Brightness On Laptop?
Apr 24, 2011I have acer Aspire 5742 with mint 9 {64/32 bit both} installed.. I cannot adjust brightness of my laptop in any of them.. The shortcut keys are working fine as increasing or decreasing through keys show icon increasing or decreasing brightness but it is not affecting brightness in anyway.
View 2 Replies View RelatedUbuntu :: Cannot Adjust Brightness - No Proprietary Drivers Detected
Aug 10, 2011I just cannot adjust the brightness. When I use Gnome bar's brightness applet or the combination of keys on my laptop,the bar moves but there is no effect. Its too bright for me, I am getting blind for real.
Acer Aspire 5742g
NVidia GeForce GT540
No proprietary drivers detected
Ubuntu 10.04 LTS 64bit
General :: Unable To Adjust The Brightness Of The Netbook Screen?
Apr 19, 2010Long, sad story made short. I have a Samsung Netbook running Windows XP Home, SP3. I set it up to dual boot with Ubuntu, just so I could play around with Ubuntu. Well, Ubuntu started giving me trouble: my internet connection went south, I was unable to adjust the brightness of the Netbook screen, etc., and when I looked for troubleshooting help on the internet, it was all Greek to me as it involved working with Terminal.
I did a search for removing a partition in Windows XP and found "How to use Disk Management to configure basic disks in Windows XP" on the Microsoft and followed the instructions there.
[Code]...
CentOS 5 Hardware :: How To Adjust / Increase Laptop Brightness
Apr 23, 2011I want to know how can I increase the brightness of my LCD screen. I have a toshiba sattelite A500-1f4 laptop with nvidia geforce gt 330m video card. I work on centos 5.6 x86-64 system.
View 3 Replies View RelatedGeneral :: Windows - Adjust Screen Brightness Automatically At Night?
Jun 7, 2010Can anyone recommend an application that will automatically dim my monitors when it gets dark at night?
View 2 Replies View RelatedUbuntu :: [lucid] Can't Adjust Screen Brightness Using Function Keys?
May 3, 2010I have just upgraded to xubuntu 10.04 and although some function keys are working (like volume control), the screen brightness function keys aren't (the screen brightness is at top level and can't be reduced)Notes:I am using a Compaq 610 laptopThe brightness keys are working on Ubuntu 10.04 (live session)How can I fix this?, and at least is there any other way to adjust screen brightness?
View 9 Replies View RelatedUbuntu Multimedia :: How To Adjust Color / Brightness / Contrast Of Flash Video Inside Browser
Dec 14, 2010Sometimes while watching ..... vids in firefox I often want to adjust the brightness/contrast/saturation levels.I didn't see any addons for the purpose.Is there a way to do this ?I have visited web sites with embedded flash players which includes these controls.
View 2 Replies View RelatedFedora Hardware :: Monitor Not Going Into Power Save Mode
Jan 26, 2009I have a Dell Precision T3400 workstation (Nvidia Quadro NVS 290) with the kmod Nvidia driver installed. Everything works fantastic for power saving, the screen saver comes on , then the monitor blanks after a while. The only problem is that the monitor itself (Dell E228WFP) never goes into standby. The power LED stays green instead of orange. Worked fine under FC8, only noticed it recently under FC10.
View 2 Replies View RelatedUbuntu / Apple :: Gnome-power-manager Brightness Without Hal?
Sep 5, 2010I'm running 2.6.35 on a macbook Air. Since Hal is being deprecated I got rid of it but now I cannot control brightness with the keyboard.Looking at the code on gnome-power-manager, if it doesn't find hal it defaults to xrandr, but I couldn't find a way of controlling brightness with xrandr. Also, I don't see any keybindings on XF86MonBrightness{Down,UP} with gnome-keybindings-properties.I'm loading mactel's nvidia_bl module which creates /sys/class/backlight/nvidia_backlight and from there I can just adjust brightness by editing the corresponding file.
View 1 Replies View RelatedUbuntu Multimedia :: Can't Control Brightness / Show Brightness Popup / Screen Brightness Don't Work
Mar 3, 2010I Install Ubuntu 9.10 and I can't control Brightness, show brightness popup (Fn+F5F6) but screen brightness don't work, I install NVIDIA Driver Linux-x86_64 version 190.53, modiffed xorg.conf.
View 9 Replies View RelatedUbuntu :: Power Manager Brightness Applet: Make Changes Permanent?
May 20, 2010I have an eeePC 1005HA, with a Linux Mint 8 distro on it. Each time i start it, i slide down the lcd brightness to take the power consumption low, using the Power Manager Brightness Applet on the gnome panel and each time i restart the pc i have to repeat this over again,I'd like to make this change permanent.
View 2 Replies View RelatedUbuntu :: Increase The Brightness Of Display In 9.1?
Dec 26, 2010i have a desktop computer with a fresh install of ubuntu 9.1. the display is too dark to see pictures and several websites as well. is there a gui tool for color and brightness correction, or do i need to do something special?
View 9 Replies View RelatedGeneral :: Stop From Re-setting The Display Brightness?
Mar 16, 2010After manually setting the display brightness on my laptop, the system re-sets the value. If the laptop is plugged in, the value is set to full brightness; if it is not plugged in, it is set to dimmer. How do I stop that behavior?
Note that I am not talking about what it does in response to the event of plugging in or unplugging my system. It changes on it's own - usually several minutes after I change the brightness value. I have observed this behavior on different systems, different distributions, and different desktop environments.
Ubuntu Installation :: Display Brightness Changes Randomly / Get Rid Of This?
Jan 28, 2010After updating to 9.10 NBR on my MSI U90 it behaves like pressing the function keys "increase brightness" and "decrease brightness" continuously, including show the appropriate pop up.
I guess it is related to power management because it mainly happens while on battery.
How can I get rid of this problem?
Ubuntu / Apple :: Display Brightness Can't Be Changed
Mar 25, 2010I am running Karmic (9.10) on my macbook air (2,1) and although many things work fine (I wrote about it here:[URL]) one of the last things that doesn't work is setting the screen brightness. The FN-F11/F12 combo does bring up the brightness adjustment notification window (top right) and I can change the setting, but it has no effect UNTILL I reboot or suspend to RAM and reboot.
A related issue is that the brightness doesn't automatically adjust to the surrounding brightness.