Fn key does not control backlight on Acer Aspire One D270-1410
I installed Slackware 13.37 on a Acer Aspire One D270-1410.
The Fn + Left or Right arrow should adjust screen brightness.
In KDE or Xfce the screen brightness controls do not work.
However the brightness graph does come up on the screen in KDE.
I went into system settings,shortcuts and gestures,global keyboard shortcuts, and set the monitor brightness key settings in custom option. However this did not work.
I have a INTEL VGA graphics controller. I tried xbacklight -set 50 on the command line but it did nothing.
boot/reboot your laptop open bootloader in edit-mode ( e on grub ) and insert "acpi_backlight=vendor" (without quotes) at the kernel line
I am new to linux i have never messed with boot loader.
Thanks for your reply I looked at the lilo boot loader section in the slackbook website. It mentions running liloconfig or editing the /etc/lilo.conf file and running lilo to save your changes.
Is this what you meant by boot loader?
And should i replace "acpi_backlight=vendor" with "acpi_backlight=Acer" since thats my vendor?
"vendor" should be sufficient, see https://bbs.archlinux.org/viewtopic.php?id=74829
reboot your machine, once the lilo screen appears hit <TAB>, then enter
in case it works, edit /etc/lilo.conf; adding a line containing
save and run /sbin/lilo; then reboot.
I will add that you should be cautious by the use of 'append' within a image stanza;
Brightness key does not work for me too.
i have installed ubuntu on one of my drive and then i have installed slackware in another drive and i have not installed lilo.
with the help of grub of ubuntu i am able to boot slackware but i am not able decrease the brightness.
works for me fine iiin ubuntu...but as i don`t have grub in slackware...can you please suggest me how to reduce the brightness of my laptop.i have acer aspire 5750z model laptop.
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