Ubuntu :: Brightness Keys Don't Work On Acer Aspire 5740
Sep 23, 2010
Quote:
SOLVED (for my laptop at least - Acer Aspire 5740)
The trick was to add "acpi_osi=" (without the quotation marks) to the GRUB parameters. Setting the parameter to an empty string means that no OS is reported to the BIOS. By default acpi_osi is set to Windows NT. I had previously tried "acpi_osi=Linux" but it didn't work, apparently it had to be an empty string.The brightness keys work now I think it might work for other models as well if they have core i3 processors.
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:
I am a new user of Ubuntu, I use Ubuntu 10.04 Lucid Lynx on my laptop Acer Aspire 4741G and the specification are:
1. Intel(r) Core(tm) i5-430M Processor 2. Intel(r) HD Graphics 3. 2GB Memory 4. HD LED LCD
I have a problem in adjusting brightness, before this laptop, I used Ubuntu on my Acer Extensa, all shortcut buttons are working properly, include Fn button. To adjusting brightness, I only have to push Fn button + arrow left or arrow right. And now, I try in Aspire 4741G, it does not work. I also try to type command via terminal:
Last weekend I installed Ubuntu 10.4 (Netbook remix) on my new Acer Aspire 751h. The installation seemed to go smoothly, but I've noticed several things that don't work as well as on my old AA 110. I should say that I installed Ubuntu in a dual-boot setup with Windows XP, which the machine already had installed. Firstly, the screen brightness can't be adjusted with the function key/hotkey combination. The sound volume hotkeys work fine, and the brightness hotkeys work with XP, so it's not a hardware issue. The default brightness is pretty dim, so this is an annoying problem. Is there a way to bind the hotkeys to the 'increase/decrease brightness' functions?
Secondly, the vertical scroll bar on the desktop doesn't work, by which I mean if I click above or below the highlighted area no scrolling takes place. However, I can drag the highlighted area up or down and scrolling does take place, and scrolling via the touchpad works. All forms of scrolling work normally within applications. Is there anything I can do to fix this? It's only a mild annoyance, though. Thirdly, in the power management preferences application I don't have an 'On Battery Power' tab - just 'On Mains Power' and 'General'. There are some other peculiarities that probably follow on from this. I have a power indicator in the top panel of the desktop, but on bootup it's a 'lightning bolt' icon rather than the battery-shaped icon it should be. If I plug into mains power, it changes to a battery-shaped 'charging' icon until it's fully-charged, when it changes back to the lightning bolt. If I then unplug the mains power, I get a battery-shaped 'discharging' icon, but this doesn't survive a restart. Obviously, a battery level indicator is very useful and I'd like to get it working properly. The help file for power management preferences says something about GConf policy keys that need to be made writable in order to display some sliders and option boxes. I certainly don't have as many sliders and options as shown in the help file. I guess this might be related to the screen brightness problem.
Finally (for now - I haven't explored everything yet) the screen ratio looks wrong. Circular icons appear as ovals. It looks like the software thinks I've got a 4:3 ratio whereas really it's widescreen. I can't see where I can change this. I've looked in 'System.. Preferences. Monitors' but there's nothing I can change there. System testing shows the apparent resolution at 1024x768, whereas the hardware spec is 1366x768. I'm wondering whether to try to fix these things individually or whether a better option might be a reinstall - perhaps without the XP dual boot. What do you think? I'm willing to change settings from the terminal but I'd need to be told exactly where to go and what to do.
This fixed a black screen issue and a brightness adjustment issue after installation of ubuntu. Also on 11.04 I couldn't get Unity to work until I edited grub I didn't come up with the fix but it took me forever to find a solution so I figured I would post it. If I have did something wrong just get a mod to delete or move this. I don't use forums often.
Code: sudo gedit /etc/default/grub Edit two lines to read as follows:
I have installed Xubuntu 11.04 on a HP Probook 4510S and the FN Keys of brightness only works when I on the login screen (gdm). Until I enter to my desktop the FN Keys stop Working. This is a XFCE Issue? I have another Laptop, a IBM THinkpad X40, with the same Xubuntu 11.04 and the FN Keys works perfect! Even the keyboard light Works! I think this is a ACPI related problem, I google it the problem with out a specific issue like this. The only thing that I can do it is use of xbacklight when I'm on my session.
root@xavierc-lt-xub:~# ls /proc/acpi/ ac_adapter battery button event wakeup root@xavierc-lt-xub:~#
i use a HP Pavilion dv6-3016ax everything works perfectly and i am very happy with ubuntu! If i could get the Brightness keys to work and the microphone i'd be even better. The brightness FN keys change the slider but make no physical difference of the brightness. And the microphone just doesn't work.
Fresh install Ubuntu 10.10 on Acer Aspire 5050 with new hard drive. I struggled to turn the Wifi's button turn on but led light always on. It does not detect wifi driver. I installed ndiswrapper to get Acer's Winxp driver: netathr.inf by Windows Wireless Drivers from Ubuntu Software download. It's same thing as ndiswrapper.
My Acer Aspire one D250 laptop running Ubuntu 10.10 wireless does not work. I dual boot with Windows XP BUT windows XP wireless works fine. here are some details you might need.
I can't get my wireless card to work. I downloaded a broadcom driver for it and i do believe its the right one, but its not helped. I'm running mint 8. The information on my internal wireless card i got using the terminal is:
lspci 00:00.0 Host bridge: Silicon Integrated Systems [SiS] 760/M760 Host (rev 03) 00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SG86C202 00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS963 [MuTIOL Media IO] (rev 25) 00:02.1 SMBus: Silicon Integrated Systems [SiS] SiS961/2 SMBus Controller 00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] [Code]....
I've just worked out how to get the wireless card working with an Acer Aspire D260 wireless card to work. Enter terminal command; sudo apt-get install wifi-radar
Then reboot ubuntu 10.04 after it has installed, network manager should now detect wireless networks in range and allow connection, right click network manager icon and select "Enable Wireless" or "Disable wireless" as required to turn on or off. So many others have had problems getting the wifi to work with Acer Aspire D260 netbooks and ubuntu 10.04.
I'm using netbook Acer Aspire One D250-0Bb pre-installed Windows XP. Now i have Gentoo. I have trouble with Xfce (lastest stable version) , where my keyboard don't react. I can move just with touchpad. I think, it's in X-server driver, but i can't find any information about that.
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.
I recently installed Ubuntu 10.10 onto my Acer Aspire D260 netbook.I find it much easier to use than Windows 7.Everything has been working fine until I recently tried going on the internet via battery power instead of my A/C charger. My update manager is showing that I am up to date and Additional Drivers is showing that the Broadcom STA wireless driver is installed and in use.
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.
I just found it out now, after installed the skype and tried setup my web/audio on it, the webcam works fine but the mic doesn't work, so i went to the audio menu on fedora 14 and found it out the mic is dead.Someone had the same issue? Can someone let me know what can i do to fix that?
I am using Samsung N150 and ubuntu 10.10 is installed in it. There is problem with brightness control i.e., I cannot control my brightness by up & down keys. I made settings such as:
I Add the repository to the sources list and enable it sudo add-apt-repository ppa:voria/ppa Perform complete system update sudo apt-get update && sudo apt-get upgrade it may take long time depending the internet connection than I installed packages "samsung-backlight" and "easy-slow-down-manager" sudo apt-get install samsung-backlight easy-slow-down-manager
Also I made changes in brightness setting in during the boot i.e set to user control instead of automatic. But after doing all these stuff still my laptop brightness not control by fn + up/down keys.
EDIT: I finally figured out how to do it - xbacklight -dec 10 lowers, xbacklight +inc 10 increaces. I'll use ubuntu tweak to get the shortcuts. I got my self a new lappy, and Acer Aspire One 751h-1948. After that, I installed Ubuntu Karmic on that, while leaving a 20GB XP partition. I configured it's Intel GMA500 Poulsbo video card, so now I can use it at the native 1366x768 res. Most of my fn keys work, other than one very important one, and here lies my problem; The brightness keys dont work(fn+left/right arrow). I've searched the net for a long time, but I still can't find a solution that works with karmic - perhaps i should downgrade?
I want to set fn + Up or Down Arrow to change the brightness of the screen, instead of fn + F4 and F5. However, I don't know the command to do that, and I can't find it in Keyboard Shortcuts.I've seen something about editing a file in /var, but that requires root permissions.
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?
i tried to install ubuntu 9.10 in my acer aspire lap. i got the ubuntu CD by parcel.i was able to select the language, then second option -install ubuntu also went rite, after that nothing is happening. how can i correct it?
When 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: 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?
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.
in compliance with bonekracker's advice, i have reposted my SOS. i have the result of the outputs of the commands for ifconfig, iwconfig, and etc i have uploaded it in the file output.doc. i hope this would be helpful in debugging my problem.but before that, i do notice that if i click on the icon for the Network Manager, the Wireless networks is set to 'wireless disabled'. maybe if i can make it turn on, my wireless problem will be solved.. its just that i even if i move the switch for the wifi, it still wouldn't turn on.
The problem now is that I cant get online. I have an Acer Aspire 5720. My network card is called Broadcom BCM4311 802.11b / g WLAN. What do I do? I've googled around and found various forum posts where I'm told that I must write various things in Terminal, which have not yet worked. I have also visited this site, where this is the first step: Open System → Administration → Networking. But the problem is that I can not find the "Networking" under "Administration". I have no experience with Linux what so ever, Ninja-edit: I tried reading through this, but I fell off at Make the .ko file
For long I've had problems with a slow Windows Xp-laptop, so today I decided to install Ubuntu on it.The problem now is that I cant get online. I have an Acer Aspire 5720. My network card is called Broadcom BCM4311 802.11b / g WLAN.What do I do? I've googled around and found various forum posts where I'm told that I must write various things in Terminal, which have not yet worked.I have also visited this site, where this is the first step: Open System ’ Administration’ Networking.But the problem is that I can not find the "Networking" under "Administration".
I tried to install the beta version of maverick with no luck. I used usb creator to put maverick on a memory stick. When I went into live mode everything worked perfectly so I thought why not install it. I then tried to do this but after filling out all the required info it wouldn't install. I clicked the install button and the installer froze up. I currently have ubuntu netbook remix (9.04) installed on it in desktop mode. I also, awhile ago, try installing lucid (both desktop and netbook remixes) and had a similar problem with them. They both stalled installing at the 15% mark. Now with this problem with maverick I am wondering why this could be happening. I have used different memory sticks so I have ruled that out as a problem. They all have worked flawlessly and speedily in live mode.
I have just installed Meerkat on an Acer Aspire laptop, it can see various wireless networks but for some reason can't connect to them. However when I turn my HTC Desire into a hotspot it connects to that fine. Why can it connect to my phone yet not any routers?
