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Thread: How to make brightness hotkeys work

  1. #1
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    Default 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
    Code:
    acpi_osi=Linux
    to the file /boot/grub/menu.lst at the end of each line where kernel words are, simple as that if you know it Maybe this can be applied to some other laptops too. Have a nice day.

  2. #2
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    Default Re: How to make brightness hotkeys work

    Quote Originally Posted by arcull View Post
    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
    Code:
    acpi_osi=Linux
    to the file /boot/grub/menu.lst at the end of each line where kernel words are, simple as that if you know it Maybe this can be applied to some other laptops too. Have a nice day.
    Thank you for sharing!
    http://mydailyhash.wordpress.com/
    http://yami.googlecode.com/

  3. #3
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    Default Re: How to make brightness hotkeys work

    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-2.6.27.29-0.1-pae 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.

  4. #4
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    Default Re: How to make brightness hotkeys work

    Quote Originally Posted by dmera View Post
    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-2.6.27.29-0.1-pae 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.
    http://mydailyhash.wordpress.com/
    http://yami.googlecode.com/

  5. #5

    Default Re: How to make brightness hotkeys work

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

  6. #6
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    Default Re: How to make brightness hotkeys work

    Quote Originally Posted by tetra6000 View Post
    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.
    ° Appreciate my reply? Click the star and let me know why.

    ° Perfection is not gonna happen. No way.

    http://en.opensuse.org/User:Knurpht
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