OpenSUSE Hardware :: Brightness Isn't Working \ Log In The Brightness Gets Obnoxiously Low?

Mar 22, 2011

I'm having a really strange problem, when I turn on openSUSE, the brightness is fine.owever, as soon as I log in the brightness gets obnoxiously low. I have a MacBook Pro 7.1 with openSUSE 11.4 KDE

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Ubuntu Multimedia :: Can't Control Brightness / Show Brightness Popup / Screen Brightness Don't Work

Mar 3, 2010

I 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.

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Debian Hardware :: Getting Lenny Working On Macbook / Can't Use Brightness Keys To Change Screen Brightness?

Feb 9, 2010

I'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.

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Ubuntu :: Brightness Controls Were Not Working?

Mar 9, 2010

I took the courage yesterday to install ubuntu 9.10. Internet was working absolutely fine (wireless), but brightness controls were not working (they still don't). So I went to this page https://wiki.ubuntu.co/Hotkeys/Troubleshooting, and ran following command(s) killall gnome-settings-daemon gnome-power-manager Now since then I cant get the internet working, and cant see the wifi connection on task bar. I have restarted the laptop but no avail.

PS: any help on how I can reduce the brightness of monitor. I am using SONY VIAO VGN FZ38M, with Nvidia 8400M GT. I have tried several threads and tried all sorts of things, like xbacklight, or somthing to do with sudo .VGA/LCD/brightness.etc.

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Ubuntu :: Brightness Controls Are Not Working?

Jul 19, 2011

I recently purchased an HP Pavilion dv7t 6163us and I installed ubuntu 11.04 on there. Everything works fine except the fn + f2 and fn +f3 which decreases and increases the brightness respectively. It's using the i7-2630qm sandy bridge processor and intel HD graphics 3000.

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Ubuntu Installation :: Brightness Control Is Not Working

Oct 14, 2010

i have inspiron n4010 lap top. i installed ubuntu 10.10, now brightness control is not working.

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Fedora :: Brightness Settings Not Working Nvidia Driver

Feb 20, 2010

To use games and other intensive applications, but with the switch I completely lost control of the brightness for the monitor. Is their a way to configure that, through the terminal or external application. If not, is there an experimental 3d version of nouveau I could try. Help would be appreciated, everything else works great so far.

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Ubuntu / Apple :: Brightness OSD Notifications Stopped Working?

Jan 14, 2010

I am having a weird issue where my brightness keys on my macbook v4.1 work, but for some reason the brightness notifications have stopped working. I can clearly press the buttons to reduce and increase the brightness, but no notifications. Network manger, sound, firefox, amarok notifications work, but not brightness. It did popup, but I am note sure when or what update broke the notifications.

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Ubuntu / Apple :: Pommed And Brightness Control Not Working

Oct 10, 2010

I've installed Ubuntu 10.10 on my Macbook Pro 6,2 and try as I might can't change the brightness of my screen whatsoever. I cant use "echo 100> /sys/devices/virtual/backlight/nvidia_backlight/brightness" because the folder does not exist. Pommed, when run using "sudo pommed -d" complains with "Failed to access brightness node: No such file or directory".

I have the mbp-nvidia-bl driver installed *only* (removed nvidia-bli because I had seen in other threads that the two conflicted). I've tried searching the forums and the web but nothing is helping me so far. Biggest roadblock for me using ubuntu is having the headache of using a much to dim screen(or currently a much too bright screen)

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Ubuntu / Apple :: Brightness Control Not Working - Displays At 100%

Apr 1, 2011

I have a white Macbook 7,1 and am running 11.04 beta 1. I have worked out almost everything, sound being the main thing that didn't work. The one thing I don't have working is my brightness control -- my laptop always displays at 100%. I tried installing pommed and the dkms package from the Mactel PPA, but nothing works yet. The wiki hasn't been updated to 7,1 for Maverick, let alone Natty.

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Ubuntu :: Brightness Fn Keys Not Working For Sony VGN NR21S?

Jul 26, 2011

The function keys regarding the brightness do not work on my laptop. I am using Ubuntu 10.4 Lucid Lynx LTS 32 bit version. I've looked on the internet for help regarding my laptop but I cant find any solutions regarding the brightness function keys for my laptop Sony Vaio VGN NR21S. The graphics card in my laptop is NVidia Geforce 8400M GT.

I've tried writing brightness-up and brightness down scripts along with a bash script but even those don't work. I tried Gnome Power Manager but that didn't solve any issues. The wireless and sound functions work.

Are there any solutions available for this particular laptop model?

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Ubuntu Installation :: Unable To Fix The Screen Brightness Keys And Get Them Working

May 22, 2010

I could find on the net to fix the screen brightness keys and get them working so I could increase the screen brightness. Nothing worked.For most or many people, some of the suggestions will work fine. For those of you who can't get them to work and are stuck with Ubuntu 10.04 on the NC20 with a dimmed-out screen, I have a quick workaround:

When you boot and get to the BIOS password prompt, use the function and up-down array keys to control the brightness there. The screen brightness will be carried through to Ubuntu. You might be able to do this at the GRUB prompt. The point is that the BIOS handles the screen brightness before Ubuntu, so it just works.

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Slackware :: Asus EeePC 1005PE Brightness Not Working Properly

Jan 27, 2011

I've been through a few versions of Slackware on my Asus EeePC and I must, despite that fact that every has been having lots of trouble (or so I've heard) configuring Linux on it, it hasn't been all that bad for me. One problem that continues to persist is that the brightness setting is weird. It doesn't like to display on full brightness most the time, and when I try to change the brightness (function keys or OS function), it goes through 3 'mini-cycles'.

I've tried the Alien eeepc-acpi-scripts slackbuild a while back and it didn't work for me before. While searching for another solution, I found this thread on the Ubuntu forums: [URL]. But the major fix that seems to be working for them involves editing GRUB (which I don't have). Another post suggests simply updating the BIOS, but the BIOS updater is a Windows executable, and I'm not quite sure how he pulled it off in Linux.

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General :: Brightness Keys Not Working In Dell Inspiron Laptop With Fedora 12 OS

Apr 25, 2010

I have installed Fedora12 on Dell Inspiron laptop. Here are my key details of my laptop.

<Fn + F4 > ---- For decreasing Brightness
<Fn + F5 > ---- For increasing Brightness
<Fn + F2 > ---- To enable Bluetooth

I am able to enable bluetooth by pressing <Fn + F2>, But I am not able to increase OR decrease brightness of my laptop screen.I have attached keymap of my laptop by the output of

Code:
xmodmap -pke
Please find the attachment keymap.txt.

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Slackware :: Laptop Mode Tools Screen Brightness Ability Working?

Mar 15, 2010

I'm currently trying to setup a minimal Slackware installation. Everything is well, except for screen brightness/hard disk control via laptop-mode-tools. I was wondering if anyone used it, and if they got it to work on their Slack systems, how they went about doing it.

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Ubuntu :: Samsung N150 - Screen Half Brightness No Change And Wifi Not Working

Jun 5, 2010

Just installed on my netbook the latest version of ubuntu (10.04). Have seen a few issues with other users however they have seemed to be able to make fixes.My problems are:

- Screen half brightness no change (does anyone have a fix yet?)

- Wifi not working (tried updating kernels, says they're the latest)

- Multi touch not able to be enabled, (again have seen a fix but for some reason won't work)

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OpenSUSE :: Adjust The Brightness In Gnome?

Oct 4, 2010

How do I adjust the brightness in Gnome?

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OpenSUSE :: System Policies Prevent From Getting The Brightness Level (KDE)

Jun 25, 2011

Does anyone know how to (permanently) get rid of this?

As you might have guessed, typing the root password and pressing OK has no effect.
This is NOT a laptop!

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OpenSUSE Hardware :: Brightness Controls Didn't Work ?

Jul 21, 2011

Recently I tried putting Kubuntu Natty Narwhal on yet again and to my surprise it mostly worked. The only major thing wrong with it was my brightness controls didn't work (I have a VPCCW21FX laptop) at first this was an anoyance being blinded by my screen but I soon realized that it was killing my battery life. So having tried to seek help in getting it to work I tried out OpenSUSE. They worked! but as soon as I updated the kernal they no longer worked. No Problem. I reinstalled and told it to never apply that update. Then I installed the official nvidia drivers via repository on the opensuse wiki. they installed and worked but my brightness controls were once again broken.

Sony VPCCW21FX Laptop. Intel Core I3 Nvidia 310M

Nvidia Driver version 270.41.06-5.1 x86_64

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OpenSUSE Hardware :: Brightness Flickering: HDMI <- Displayport Nvidia?

Feb 6, 2010

Connecting my Laptop's Displayport to the HDMI of my TV works fine under Windows Vista in 1080p (1920x1050).

Under Linux the Brightness alternates between high and low every other second.

Otherwise, the picture is fine and sharp. However, the ever alternating brightness makes it unusable.

Anyone any idea what is the reason for this is and how to fix it?

Software: openSuse11.2 (64bit), nvidia 190.53, X.org 11.0. Hardware: Dell m4400, nvidia Quadro FX770M, Sony KDL-37W5810.

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OpenSUSE Hardware :: Acer Aspire 4810T Laptop - Hardware Brightness Keys System Slowdowns, Software Controls Don't Work

Mar 14, 2011

I have an Acer 4810T laptop with Intel graphics. I run openSUSE 11.3, and am about to upgrade to 11.4. But both systems still have a very bad bug with screen brightness. The Fn+Arrow keys do change screen brightness, but after using them the system is rendered extremely sluggish and unresponsive. This sluggishness is most pronounced with a very important Wine app I need to use. The only way to fix the sluggishness is to reboot. With 11.4, the problem is worse because the system boots and automatically partially dims the screen, thus making it even more necessary to change the brightness. Neither Gnome nor KDE are able to change the brightness via their power managers. This means that I can't dim my screen automatically upon disconnecting the A/C power.

I have read many experiences from Ubuntu and openSUSE users, who all have the same problem. I have tried both intellegacy and the new intel drivers, and they both have the problem. I have read that some users have improved the situation by upgrading or downgrading the BIOS. Others have been experimenting with kernel patches:

[URL]

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Ubuntu :: Using Brightness Control In 10.04?

Jun 5, 2010

I am currently using Windows 7 but I would really like to install the new Ubuntu, what bothers me is that I tried using Ubuntu 9.04 few months ago and I had troubles changing the brightness (Toshiba L40). I have searched in the forum and it appears that there are quite some people with the same problems, of course fixes are offered but as at least some basic kernel knowledge is required I am in no position to follows the proposed steps. Since this is one of the determining factors whether to stay with Windows or go to Ubuntu I was wondering whether this problem is fixed in 10.04 or not?

P.S. I haven't tried messing with the kernel because I have only one laptop and I am afraid to lose the information on it.

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Ubuntu :: Brightness Key Won't Work?

Feb 3, 2011

I have a sony vaio VGN-NW270F.Everything is working fine except the FN brightness keys, they are mapped to F5 and F6. If anyone knows the solution to this problem or could provide me with a way to map different keys to control the brightness of my monitor that would be great.

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Ubuntu :: How To Adjust Brightness

Jul 31, 2011

I 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.

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Ubuntu :: Controlling Brightness In 9.10?

Mar 22, 2010

I want to pick up an obviously unsolved problem. I have a Samsung Q210 Seven Notebook and recently installed Kubuntu. Everything works fine, as long as I put on my sunglasses when working with the notebook in the evening. Triggering the hotkeys shows an icon with a percentage counter that increases or decreases, depending on which function key I use. Although this looks really nifty, it gets boring after utilizing a few times. And, as you might already think, the brightness doesn't change here...

I found a hint telling to adjust the /etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset acpi_backlight=vendor"

The only effect this has is that the nice percentage lowering/raising minigame doesn't work anymore

Also, nothing from the suggestions from the previous post work. This is really bad, since that way not only the user's eyes suffer, but also the energy consumption of the display is maximized.

how I can change brightness/backlight intensity

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Fedora :: How To Change Screen Brightness?

Sep 18, 2009

I'm having trouble locating a way to adjust the screen brightness on fc10... It is only possible to use the monitor's control for now.Yeah my monitor make an annoying whining noise unless you turn it on 100% brightness, but that hurts my eyes.It is so crazy that they didn't put a brightness control in! ( or rather they destroyed working ones of year past, Why? )

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Fedora :: Screen Brightness Resetting Itself

May 23, 2010

My issue is like this: I have a laptop (dell vostro 1400, NVidia 8400M video card) running Fedora 12 up to date. My desktop is KDE 4. I usually run the laptop connected to the power outlet, so my power profile is set to "performance". This power profile sets the screen brightness to the maximum. However, when I'm in the dark, I want to lower the screen brightness. The shortcut keys work, and the screen brightness is lowered. However, for some reason, after about 30 seconds it resets itself to the highest brightness setting. No matter how I set the brightness, it will always reset itself. Any ideas what can i do to correct this?

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Fedora :: Adjust Screen Brightness

Mar 13, 2011

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.

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Fedora Hardware :: Not Possible To Change Brightness

Jul 29, 2011

Recently, I installed Fedora 15 in my Sony VAIO Laptop Series E. Firstly, I had a little problem with nvidia drivers and wireless because I installed from a normal CD, but then I repaired it installing drivers from the web page and updating the system. However, I continue having a problem with changing brightness even with the Fn buttons or with the gnome configuration control. I followed some suggestions as for example these ones http://forums.fedoraforum.org/showthread.php?t=262545, but nothing change. I already tried with xbacklight but still not working. I also did a change in grub conf file (following google search suggestions) adding these commands: acpi_backlight=vendor acpi_osi=Linux, but nothing.

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Ubuntu :: Cannot Adjust Screen Brightness V 10.04

Jun 3, 2010

I 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.

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