ASUS Zenbook UX390 - ArchWiki

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# ASUS Zenbook UX390

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Reason: Needs a hardware table and a function keys section (Discuss in Talk:ASUS Zenbook UX390)

## Volume increments do not work

Because of the "surround sound" audio hardware on the UX390, you have to tweak a Pulse configuration file to get volume incrementing to work. Otherwise, the volume will either be full or muted, despite appearing to increment.

Edit the analog output path config and add the `Element Master` and `Element LFE` parts below.

    /usr/share/alsa-card-profile/mixer/paths/analog-output.conf.common

    [Element Master]
    switch = mute
    volume = ignore

    [Element PCM]
    switch = mute
    volume = merge
    override-map.1 = all
    override-map.2 = all-left,all-right

    [Element LFE]
    switch = mute
    volume = ignore

Then, restart PulseAudio and changing the volume should work.

## Headphone jack audio is always muted

See Advanced Linux Sound Architecture#Unmuting the channels.

## Keyboard and Touchpad unusable in X and Wayland

Since kernel version v5.8, the `asus-wmi` driver gained the ability to detect "tablet mode" on convertible devices. However, at least on UX390UAK the `asus-wmi` driver believes that the device is always in tablet mode, although it is not a convertible (see [1] for a kernel bug report). Libinput automatically disables touchpad and keyboard when kernel reports tablet mode, so they only work in tty but not in X or wayland.

To workaround this, add a quirk file for libinput:

    /etc/libinput/local-override.quirk

    [test override 1]
    MatchUdevType=touchpad
    ModelTabletModeNoSuspend=1

    [test override 2]
    MatchUdevType=keyboard
    ModelTabletModeNoSuspend=1

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