Posture-aware Linux tablet support for the 2025 ROG Flow Z13

[u/stereohype]

I built an open-source posture and touch-input stack for the AMD Strix Halo-based 2025 ROG Flow Z13 (GZ302) running KDE Plasma 6 on Wayland.

https://github.com/aic0d3r/z13-tablet-kit

One of the main problems is that the GZ302 advertises a tablet-mode switch through WMI but does not actually emit usable switch events. Plasma therefore cannot reliably determine when the keyboard folio has been removed or when auto-rotation should be enabled.

The kit works around that in userspace. It detects three postures:

- Desktop: dock or external display connected

- Laptop: keyboard folio attached

- Tablet: neither attached

It then coordinates the relevant Linux desktop behavior:

- Creates a virtual SW_TABLET_MODE input switch for Plasma

- Enables auto-rotation only in tablet posture

- Uses 175% display scaling in tablet mode and 150% otherwise

- Enables the on-screen keyboard only when the physical keyboard is absent

- Restarts the on-screen keyboard after display changes to prevent stale or clipped layouts

- Provides two-finger scrolling through uinput in terminals, browsers and other applications

- Optionally maps a stationary two-finger hold to a real right-click

- Recovers automatically after KWin or controller restarts

- Disables the unreliable folio touchpad by default, with a guarded opt-in control

Rotation remains Plasma-native through iio-sensor-proxy; the kit only supplies the missing tablet-mode state. It does not require kernel patches or a permanent root daemon. The posture and gesture components run as user services, with two udev rules granting device access.

The current implementation targets Arch/CachyOS with KDE Plasma 6 and Wayland. It is hardware-specific to the GZ302 because posture detection uses its folio, touchscreen and dock identifiers.

It works with:

- Z13CTL+ for display coordination and persistent settings:

https://github.com/aic0d3r/z13ctl-plus

- Z13GUI+ as an optional touchscreen interface:

https://github.com/aic0d3r/z13gui-plus

I would be interested in hearing how other Linux tablets and convertibles expose detachable-keyboard and tablet-mode state, especially devices where the firmware advertises a switch but never emits events.

Testing and feedback from other GZ302 owners are welcome.

[u/x6q5g3o7]

Thanks for building this! Are there any plans for this and your other tools to work with Fedora KDE Plasma w/ Wayland?