I've tried now with an Asus UX303LB-R4109H (2 graphic cards Nvidia and Intel) and Ubuntu 15.10 (kernel 4.2.0-22) : unfortunately I cannot manage to make the FN brightness keys work.
The brightness can be adjusted if the System Settings are used though.
About my BIOS version:
$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
UX303LB.206
08/24/2015
I've tried now with an Asus UX303LB-R4109H (2 graphic cards Nvidia and Intel) and Ubuntu 15.10 (kernel 4.2.0-22) : unfortunately I cannot manage to make the FN brightness keys work.
The brightness can be adjusted if the System Settings are used though.
About my BIOS version:
$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
UX303LB.206
08/24/2015
Thanks.