How to make brightness hotkeys work

Hi everyone. This thing took me almost a month to figure out, so I thought it is worth posting the solution here as well. My original thread is on ubuntu forums [SOLVED] Hotkeys on acer with 64 bit os-how to? - Ubuntu Forums]( To summarize in few sentences: I bought a brand new laptop Acer Emachines G725 and I couldn’t make my hotkeys for birghtness work (Fn+Left/Right Arrow). I currently have kubuntu 9.04 on my laptop, but I also tried with various other distros (live cd) including suse and there was everywhere the same problem, brightness hotkeys just didn’t work. After trying 100 other things I googled somewhere the solution, and that is, just put


to the file /boot/grub/menu.lst at the end of each line where kernel words are, simple as that if you know it :slight_smile: Maybe this can be applied to some other laptops too. Have a nice day.

Thank you for sharing! :slight_smile:

Thank you for the tip,but unfortunately it didn’t work for me. I have a Sony Vaio VGN-FS850. I added the line (via Yast–> Boot Loader) and no luck, nothing happens and I reboot the machine.
kernel /boot/vmlinuz- root=/dev/disk/by-id/ata-TOSHIBA_MK1031GAS_Z58P1118S-part5 resume=/dev/disk/by-id/ata-TOSHIBA_MK1031GAS_Z58P1118S-part4 splash=silent showopts acpi_osi=Linux

Well maybe other will have more luck. Thanks anyway.

Take a look to Keytouch.
Hope that helps.

just tried in ASUS K40Ij on OSS11.1, it works … many many thanks, it was really annoying b4.

There’s no need to do so on ASUS laptops. ASUS provides the kernel module asus-laptop. It does all the nice things for your Fn keys. On my brand new ASUS almost all buttons work OOTB.