I just installed #! on my Acer TravelMate5742 and had some problems with the screen brightness adjustment keys.
After some search i found a fix which might work for multiple Acer laptops and i wanted to share with you.
First you have to open the file /etc/default/grub with a texteditor of your choice and sudo rights.
sudo nano /etc/default/grub
In the file you change the value of GRUB_CMDLINE_LINUX like this:
GRUB_CMDLINE_LINUX="quiet splash acpi_osi=Linux acpi_backlight=vendor"
now write the file via ctrl+o and exit nano via ctrl+x.
You only have to update grub with sudo rights
and reboot. After that and your screen brightness keys should work fine.
If you have any suggestions or further questions, don't hesitate to post below or write me a pm.
Last edited by Jensit (2013-11-05 15:06:14)
AcerTM5742: i3-370m, 4GB DDR3, 320GB HDD
Desktop: i7-3770k, NVIDIA GeForce GTX 680, 24GB DDR3, 240GB SSD, 2TB HDD
Acer Screen Brighness Keys Fix