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.
I am using Ubuntu linux, and I want fn + up key and fn + down key to change the brightness instead on fn + F4 and fn + F5. I've tried looking for something in the Keyboard Shortcuts menu, but there is no command or key specified to do that. I could make a custom key shortcut, but I can't find the command to change the brightness. Is there a way to make another key do this? My laptop is a Dell Inspiron 1545.
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.
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'
I installed Debian Lenny on my old IBM thinkpad R40e but i can't change the brightness either with the Fn keys or with the brightness control debian has. i have searched around and it seems to be a problem with linux on IBM thinkpads but i don't know that much about this sort of thing so any help would be appreciated. if you need any more info then just ask.
I've an asuspro (more precisely the p2520la version) notebook with the fn+f5, fn+f6 buttons that should change brightness of the screen. But they don't work. For volume it's ok (fn+f11/f12), and if I go in the system settings I c an change manually the brightness (I use kde so there is a bar with which change it). But when I'm outside and the screen brightness is low I found difficult to find the menu settings and the hardware buttons would be better.I've tried adding to the kernel the "acpi_osi=" command but doesn't work.
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 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'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? )
i had slackware 13.0 on my dell vostro 1320 and it was all good, but since the upgrade to 13.1 i cannot change the screen brightness with ctrl+up and ctrl+down keys..i'm not even sure how to start with this problem. from what i understand these keys 'call' a bios function...? so that would mean that some kernel module is not being loaded?or has the desktop environment lost the key mappings and that is causing my trouble?
I bought a Asus eeepc a few days ago which I really like, with the exception of one thing - windows 7 starter. I like Windows 7, but starter is just bad. I also really like ubuntu, so I've decided to put it on my netbook. I download the netbook edition from the site, put it on a usb drive, and than tested it out - well, my screen is dim, very dim. Changing the brightness setting on the tool bar up top doesn't change anything, and using the function keys does change it, but still keeps it very dim.
I've tried restarting my computer, same thing, I've tried messing around with settings in the battery options, nothing... I really don't want to install it if its going to be this dark, I can see things, but its not very pleasant to use. I'm starting to consider that its the problem with the file I downloaded. Theres nothing wrong with my netbook, everything worked perfectly fine in Windows 7. I use the full version of ubuntu 10.04 on my other laptop which works perfectly fine, I'm not sure why this version is acting so weird on my netbook.
I installed Ubuntu 10.10 on my laptop and encountered several issues.
1. The Synaptics touchpad is nearly unusable. It is impossible to drag while holding down a button. The cursor will move randomly across the screen instead. It is impossible to right click; a right click is treated like a left click. Double-tapping the dot in the corner does not disable the touchpad.
2. Attempting to change the brightness will kill the screen. The computer is still functioning, and it is possible to perform tasks "blind." Only the screen becomes completely blank.
3. Ubuntu does not always boot up reliably. When it does not, the screen is blank but the computer is otherwise responding.
4. The screen is black after suspend.
5. The computer will sometimes hang when shutting down (showing desktop background). Possibly related messages in dmesg:
I've been using Ubuntu 10.10 64-bit on my MacBook Pro 5,5 for about a week now. And I've noticed that the screen brightness adjustment does not work. When I click the F1 and F2 buttons I get the notification that it's changing but it doesn't actually change it. So I added the brightness adjustment to the panel and it won't let me move the toggle thingy. Has anybody else had this problem? All my other F keys work fine.
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.
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.
I have installed kmilo, modprobed nvram and added line: KERNEL=="nvram", MODE="0666", GROUP="nvram" to 91-permissions.rules. I used command addgroup nvram and add me ( user tomasso ) to nvram group. Kmilo works fine but I am not able to change brightness of my laptop in kpowersave or by using fn key on my laptop keyboard. I am in powerdev group too.
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.
I bought a new computer, pretty awesome machine, AMD FX6300 with a Radeon 260X graphics. Along I bought a new Led monitor AOC with DDC/CI capability.
It is my understanding that with the DDC/CI, monitors can have their brightness controlled just like laptop screens do, but better software controlled.
This is something I have done before with nvidia graphics, the open drive had the control and the proprietary only needed a small config setting. This was done however in a dekstop iMac, the screen also LED and HDMI.
So I just freshly installed debian jessie in this setup, it seems the open source driver does a pretty good job, but still missing the brightness control and audio through HDMI doesn't work either.
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.
When increasing or decreasing the screen brightness, Minecraft crashes and to an extent freezes my computer UI. What I mean by to an extent is that I can move the cursor around, but I can't click on anything. I can also run keyboard shortcuts and type, which is how I restore my system by terminating all java processes with pkill.
What causes minecraft to crash and how can I solve it?