Wifi hotkey / LED (acpi) broken on UX302LG

[tehownt]

Wifi hotekey (including LED lighting on/off) is broken on UX302LG with default acpi settings.

*SOME* of the other hotkeys work :
- keyboard dim
- sound control
- touchpad toggle.
- sleep hotkey

not tested : external display hotkey.

Screen dim key does not work (probably due to Bug #1265544) but I'll post a separate bug report for this (no known workaround).

WORKAROUND : using acpi_osi="!Windows 2012" as launch parameter, makes the key work correctly.
CAVEAT : Not in sync with the "soft" controls : when using the UI to switch on/off the wifi & BT, the LED stays ON on the keyboard resulting in a desynchronization between the wifi state and the keyboard LED. This is probably normal behaviour ?

[tehownt (tehownt)]

WORKAROUND:
Using
acpi_osi=
at boot parameter with NO value set, also fixes the Wifi key (and others, see Bug #1270663).
Still the same caveat though.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Alberto Aguirre (albaguirre)]

I experience the same behavior described using UX302LA laptop

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[penalvch (penalvch)]

tehownt, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1270661

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]