Comment 34 for bug 1173107

i did some further testings... this is so strange..

last week i followed the guide: https://help.ubuntu.com/community/AsusZenbookPrime#Ubuntu_13.04
#after the above post i removed this Windows!2012 thing in my grub config to: GRUB_CMDLINE_LINUX_DEFAULT="splash quiet acpi_osi="

i then did a reboot to 3.9.0 rc9 and ...tada... the following worked:
1) Keyboard and Monitor backlight worked even with OSD.
     Wireless toggle (fn-f1) worked, but no OSD
     toggle touchpad (fnf9) didn't work.

Then reboot to 3.8.0.19 -> OSD was gone, no Keyboard backlight, Brightness Backlight worked

reboot to 3.9.0 rc9 -> no OSD, Brightness worked bur very laggish.
some other reboots to 3.9.0 rc9 -> no OSD, Brightness worked bur very laggish.

another reboot 3.9.0 rc9 ->everything worked again like in 1)
here i saved the dmesg :
asus_wmi: ASUS WMI generic driver loaded
asus_wmi: Initialization: 0x1asus_wmi: BIOS WMI version: 7.9
asus_wmi: SFUN value: 0x6a0877<6>[ 3.053346] input: Asus WMI hotkeys as /devices/platform/asus-nb-wmi/input/input5
asus_wmi: Backlight controlled by ACPI video driver

after reboot -> only brightness, no OSD
dmesg output:
asus_wmi: ASUS WMI generic driver loaded
asus_wmi: Initialization: 0x1asus_wmi: BIOS WMI version: 7.9
asus_wmi: SFUN value: 0x6a0877<6>[ 2.975072] microcode: CPU1 sig=0x306a9, pf=0x10, revision=0x12
input: Asus WMI hotkeys as /devices/platform/asus-nb-wmi/input/input5
asus-nb-wmi: probe of asus-nb-wmi failed with error -5

i don't know whats the difference between asus_wmi and asus-nb-wmi... nevertheless now it gets strange:

i reinstalled the asus_wmi 0.2 manually (sudo dpkg -i asus-wmi-dkms_0.2_all.deb) which hadn't any effects except that dkms status showed, that asus_wmi is installed in 3.9.0 (see above post only states built)

then i removed asus_wmi manually! my dkms status output now shows:

bbswitch, 0.6, 3.8.0-19-generic, x86_64: installed
bbswitch, 0.6, 3.9.0-030900rc8-generic, x86_64: built
nvidia-304-updates, 304.88, 3.8.0-19-generic, x86_64: installed
nvidia-304-updates, 304.88, 3.9.0-030900rc8-generic, x86_64: installed
vboxhost, 4.2.12, 3.8.0-19-generic, x86_64: installed
vboxhost, 4.2.12, 3.9.0-030900rc8-generic, x86_64: installed
vhba, 20130121, 3.8.0-19-generic, x86_64: installed
vhba, 20130121, 3.9.0-030900rc8-generic, x86_64: installed

(dmesg still shows, that asus_wmi drivers are loaded)

AND FINALLY: On kernel 3.8.0.19 (not on 3.9 rc9) everything works like a charm (except fn-f2 Wireless toggle)
--> Keyboard Backlight with OSD
--> Brighness Control with OSD
--> Touchpad toggle with OSD (!) (fn-f9)
--> Loudness Control with OSD (fn-10 to 12)

hope this helps someone. oh, and sorry for my english :-)