Comment 72 for bug 1348890

Not fixed in current mainline for ASUS TP300LA/J Flipbook. fix #69 does not work either. Backlight and Ambient sensor works fine without combinations of acpi_osi= etc. Adding them disables backlight from working at all.

Linux gabrielle.ae.net.nz 4.5.0-0.rc3.git1.2.fc24.x86_64 #1 SMP Tue Feb 9 22:52:55 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

[aenertia@gabrielle ~] $ sudo evtest
No device specified, trying to scan all of /dev/input/event*
Available devices:
/dev/input/event0: Lid Switch
/dev/input/event1: Sleep Button
/dev/input/event2: Power Button
/dev/input/event3: AT Translated Set 2 keyboard
/dev/input/event4: ETPS/2 Elantech Touchpad
/dev/input/event5: Atmel
/dev/input/event6: Video Bus
/dev/input/event7: Video Bus
/dev/input/event8: HDA Intel HDMI HDMI/DP,pcm=3
/dev/input/event9: HDA Intel HDMI HDMI/DP,pcm=7
/dev/input/event10: HDA Intel HDMI HDMI/DP,pcm=8
/dev/input/event11: HDA Intel PCH Headphone
/dev/input/event12: Asus WMI hotkeys
/dev/input/event13: USB2.0 UVC HD Webcam