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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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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Aug 20, 2010
I have a fairly new Samsung 2233RZ 120hz lcd hooked up to a GeForce 8800gt...
When i click on the Brightness and Contrast controls on the monitor it gives me "Not available"...
Does the linux nvidia drivers disable my monitor functions? is my monitor improperly configured? do i need to take some steps in setting up my monitor? there are some tiny white scanlines going through the display horizontally if i look real close...minimimalist ubuntu 10.04/XFCE4 same happend on ubuntu 10.04 gnome... with or without the geforce drivers.
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Jul 23, 2010
I looked through the wiki and for some reason I cannot get my brightness controls to work.
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Jan 2, 2010
dont say xgamma, i need brightness/contrast not gamma
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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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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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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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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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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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Aug 4, 2010
I have a new Dell Studio XPS laptop (I have used dell laptops for many many years running Fedora linux). And for the first time I want to setup the Infrared remote control in the laptop.
That is I like to set up a remote to start and stop movies and sound playback.
I installed LIRC and after reboot I see devices such as /dev/ircomm0 to /dev/ircom31 as well as /dev/irnet
So what next?
The LIRC website just goes on about using serial dongles, but nothing on setting up a laptop with a built-in IR sensor. It also talks about using irrecord, but that program complains about no /dev/lirc0 device.
I tried installing a "gnome-lirc-properties" (whcih also installed "lirc-remotes" package), but it fails with a verbose 'python traceback' that doesn't tell you what is wrong.
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Oct 14, 2010
i have inspiron n4010 lap top. i installed ubuntu 10.10, now brightness control is not working.
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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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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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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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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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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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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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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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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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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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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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May 2, 2010
There is a very strange problem I've been having. When I enable either Caps Lock or Num Lock the media controls on my keyboard cease to work. I have Googled this one to death but found nothing. This problem existed in Xubuntu 9.10 and now still exists in Xubuntu 10.04. The keyboard I use is a Logitech Elite Keyboard. I would love to be able to use the Caps Lock and Num Lock without the worry that I am disabling the media controls
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May 3, 2010
I upgraded from Ubuntu 9.10 to Ubuntu 10.4. After the upgrade I noticed the entire title barding the window controls to minimize/maximize/close a window disappeared.Resizing/moving a window is not possible either.At first I thought something went wrong with the upgrade, so I did a full reinstall, but using the same home dir (sda5 mounted to /home). The problem remains.
I can temporarily fix it by changing the visual effects to normal or extra, but each time I restart I have to do this again. The controls appear at the right side, opposed to the left side which I would have expected from this release.I realized that this must be something in my home dir, so I created a new user. For this new user, everything appears as expected, so it's most likely some configuration file left from 8.10 which 9.4 doesn't like
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Sep 8, 2010
I would like to have [CTRL][ALT][BKSP], [CTRL][ALT][+] and [CTRL][ALT][-] activated but don't know how to do this in the new X11.
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Jan 11, 2011
I am considering installing Ubuntu on one of my desktop pcs used by my daughter. It's currently running Windows 7 32bit in a LUA, but is not as stable as I'd like. I am using Cyber patrol as a parental control system - which could be causing some of the instability. Is there any Parental Control software available for Unbuntu?
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Jan 3, 2010
I can't get flash controls to work. If the video auto-plays, it starts just fine, if not, I'm out of luck. I've tried reinstalling flash through the software center. Even if it autoplays, I can't control volume or pause or anything. I'm at the mercy of whatever is already there. Ubuntu Karmic 9.10 - all updated as of 1/2/2009 Firefox 3.5.6 On a Lenovo Thinkpad R400
It has never worked. About to pull my hair out and/or reinstall Ubuntu Completely since no one else seems to have to problem.
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Feb 7, 2010
a widow with 4 kids - 2 of whom have severe depression & signs that one may be suicidal and is taking interst in some dark garbage on the net. Overall still a pretty good kid, but he surely doesn't need help online to get further in a hole. The 15 year old boy is highly intelligent (whole family actually) and knows how to get around software parental controls with peer to peer, live disks, etc. There are several PCs - both windows and mac, and an X-box.
I want to set up the household with a router or similar solution that is smarter than the kid and his friends. I figure protecting the network is the most tamper proof, all-encompassing way to go. In the short term, I really want to lock that home net solid, while still allowing mom to do her facebook and the oldest to use the web for schoolwork. Dlink Securespot technology seems to be the best overall solution I have found so far. If there is something better, I'm hoping someone here can steer me to it.
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May 9, 2010
Yesterday I adjusted the position of the windows controls back to what it was before, by using the configuration editor to set apps / metacity / general / button layout to "menu:minimize,maximize,close". At the time everything seemed good, the buttons moved, and it all worked. This morning I rebooted back into Lucid Lynx Ubuntu 64 bit, and now I find there are no controls on the windows, and I cannot even click and drag them, or double click the title bar to maximize! I checked, and the string I altered is still the same. I can still move windows with Alt-F7 and the mouse, and can resize by dragging out the bottom right corner.
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Jun 3, 2010
Is there an app I can put on my website hosting server that will do the following:
1. Allow the user to view a DVD.
2. Pause / stop to view something in more detail.
3. Rewind to view something again.
4. Mark location so they can return to viewing in the same place at a later time.
I belong to a fly fishing club. We have tapes of fly tying sessions dating back to 1992. Since we are registered as an educational charter with the state, I would like to make the available to our web sight viewers for learning. The club owns all these tapes and they were filmed at club sponsored functions. There should be no copyright problems. I am in the process of converting them to digital.
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