Comment 70 for bug 1520519

Hi,
I'm experiencing almost all the above bugs by trying to install Linux on an Asus ROG GL552VW.
I tested Ubuntu 16.04, Debian 8 and Mint 17.3.

The main issues are:

- Ubuntu 16.04: no backlight keys, cpu fan always at maximum speed
- Debian 8: no special keys at all, cpu fan always at maximum speed, touchpad not detected
- Mint 17.3: no backlight keys, cpu fan always at maximum speed, touchpad not detected

By searching around for a few days I found out that the best configuration, at least for my laptop, is the following:

- Linux Mint 17.3

- grub optins: acpi_osi=! acpi_backlight=native

- create a file /usr/share/X11/xorg.conf.d/80-backlight.conf
and copy the following code inside:
Section "Device"
    Identifier "Intel Graphics"
    Driver "intel"
    Option "AccelMethod" "sna"
    Option "Backlight" "intel_backlight" # use your backlight that works here
    BusID "PCI:0:2:0"
EndSection

in this way the backlight keys and cpu fan work but I still have no touchpad.

I tried several kernels, starting from version 4.3 trackpad works but I get video artifacts with both the open source and the proprietary nvidia driver.

I can provide further details and logs if needed, just tell me which ones you need.

Maurizio