My 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 RepliesI 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.
Running 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 RelatedI 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 RelatedWhen 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
I 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 RelatedLong, 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]...
Can anyone recommend an application that will automatically dim my monitors when it gets dark at night?
View 2 Replies View RelatedI 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 RelatedI 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.
Ubuntu 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 RelatedHow do I adjust the brightness in Gnome?
View 9 Replies View RelatedResearching 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].....
I 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
dont say xgamma, i need brightness/contrast not gamma
View 2 Replies View RelatedI 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 RelatedI'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?
I 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 RelatedI'd been trying to get into Linux before I bought it so I figured that I would try to get it onto my new Mac so that I could use it wherever I am. I decided to try Debian Lenny 5.0.3 a whirl after reading about all the different distros available. I've successfully installed it and I can get to it with rEFIt, and I have quite a few things working such as the video drivers and wifi. However, I've had trouble getting it to a level where it'd be usable away from home. Here are the main problems I'm worried about:
1) I installed pommed but I still can't use the brightness keys to change the screen brightness. I'm not sure if there's some other workaround for this?
2) I tried some recommended power management packages (gnome-power-manager) but it doesn't seem to be accessible or functional right now. I don't have any way to control it or get to it that is obvious to me. Is an icon or anything supposed to appear on the task bar when you install or what? Getting some sort of power management on here is important because it gets really lousy battery life otherwise.
3) Being a Macbook, there's no right-click button. Multitouch would be really nice (two-finger scrolling!) but I'd be OK with ANY way to right-click with the touchpad. I have a wireless USB keyboard/mouse combo that works at home at least . . . right out of the box too!
4) I've seen some packages called the Mactel PPA, but they are made for Ubuntu. Since Debian and Ubuntu are so similar, is there any way to make those work on Lenny? I think that if I got those to work, I could fix some of the problems above. Or do I have to install Ubuntu?
5) I just noticed that the sound doesn't seem to work yet either.
Can't adjust brightness of display on buttery power mode Have no controller, such as in the tab "On AC Power"
View 4 Replies View RelatedSometimes 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 RelatedI have windows installed through virtual Box now but i have some questions. When i make it full screen it goes full screen but Windows stays in the middle of the screen small and doesn't adjust to the full screen. Can you make windows completely take up the full screen Can i access folders on my ubuntu drive ? i have a file in downloads i want in windows but don't want to reinstall it
View 4 Replies View RelatedOn last boot it was fine but now it is showing 800X600 which is too low . How to adjust it
View 9 Replies View RelatedI'm trying to play Regnum Online on a netbook and windows is way too big for the screen, and it wont let me resize it
View 5 Replies View RelatedI just want to know how to adjust the screen resolution of my boot up screen. My PCs maximum resolution is 1366x768 but I think my boot up screen only uses 600x400. I doesn't look nice for me. The logo of Kubuntu is too big and the colors are not the true colors of the Kubuntu Boot up screen.
View 2 Replies View RelatedI've been trying for very long now to adjust my screen resolution to my desired setting. So far, no luck. Just today I went in to examine what my xorg.conf looked like and this is what I saw.
Section "Screen"
Identifier "Default Screen"
DefaultDepth 24
Option "AddARGBGLXVisuals" "True"
[Code].....
I have an HTPC mini computer, in which I've just installed Ubuntu 10.4 Lucid Lynx, and I tried all screen resolutions I could possibly use through the settings. And the top, bottom, left & right hand sides are out of the resolution. So for example the top and bottom taskbars are out of the screen. I'll be posting a photo later on today to show you people exactly what I mean. So that I can have Ubuntu's screen would fit all inside my LCD screen ? The HTPC runs an nVidia graphics card.
View 3 Replies View RelatedWhen I installed 10.04 in April, I started having all sorts of problems with my Virtual Terminals (CTRL-ALT-F*). First they were inaccessible completely, then they were there, but not visible, i.e. I could use them to login and run commands, but there was no screen output, then they were gone again, and the fight just went on and on. I just recently got this functionality back after months just messing around, testing different peoples solutions, and really just not being afraid to break the whole thing. Ultimately, it boiled down to nVidea graphics driver problems.
However, now I notice that outside of gdm, the screen is not aligned properly. It seems to be about 2 characters to the left and several lines lower than it should be on VT1-VT6, while gnome is aligned perfectly. I can use my screens auto-adjust to fix the problem, but when I switch to another terminal, the problem comes back. It's not really a huge deal, but after all this trouble, I really just want them to work the way they are supposed to work. Does anyone know of a way to set the screen alignment via software, or am I just stuck dealing with it?
Have just installed my frist linux os and the screen has a big black border around it. Set the res on install to 1024x768 & this is displayed in display settings. If I run xrandr in a shell tool it only shows 640x480 available.xorg.conf has "1024x768" "800x600" & "640x480" available.Have search the web but nothing I've found works.
View 14 Replies View RelatedMy laptop with Ubuntu 9.10 just randomly while adjusting the brightness using the shortcut key commands on my laptop the brightness started to glitch between two brightness levels. If I don't use the shortcut keys it doesn't glitch unless I shut the screen or restart the computer. So I've had to put up with this for the past couple months now and I think that it might even drive me to reinstall but then I lose all my data.
View 3 Replies View Related