I just installed Ming 17.2 with XFCE on an Asus N551JB that comes with an integrated Intel Graphics and a GForce 940M. The installation has
kernel version: 3.16.0-38-generic
I seem to have two *backlight related files*
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edu@edu-N551JB ~ $ ls /sys/class/backlight/
asus-nb-wmi intel_backlight
I followed to solutions but had now success
a) Created '/usr/share/X11/xorg.conf.d/20-intel.conf' with this data:
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Section "Device"
Identifier "card0"
Driver "intel"
Option "Backlight" "intel_backlight"
BusID "PCI:0:2:0"
EndSection
b) Updated '/etc/default/grub' changing line:
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GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
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GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"
The same goes for the Touchpad enable/disable keys (that's very important, it get's annoying when programming).
Thanks in advance for any help or for pointing me out where to look.
Edu