Weston

Weston
Name	Weston
In postmarketOS
Package	postmarketos-ui-weston
Status	Available

Weston is the reference implementation of a Wayland compositor.

Installation

pmbootstrap init
User interface: weston

This will package weston libraries as well as demos for your device, see weston* commands.

Weston will be launched automatically on boot by TinyDM.

RDP (Remote Desktop Protocol)

Prerequisite:

apk add weston-backend-rdp
apk add openssl

Create a Self-Signed SSL Certificate:

sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout mypublic.key -out mycrt.crt

Start weston with RDP backend:

weston --backend=rdp-backend.so --rdp-tls-cert=/path/to/mycrt.crt --rdp-tls-key=/path/to/mypublic.key --socket=wayland-1 --width=540 --height=600

On host:

xfreerdp /v:172.16.42.1 /sec:tls

Guide

Follow the Display guide to change and fix display related issues.

Troubleshooting

Weston is very commonly used for testing new ports and as a demo (Category:Interface). Unfortunately, upstream changes can make maintenance difficult. The common backend fbdev has been deprecated and disabled by default in weston 10.0.0.

Choosing weston as the interface (pmbootstrap init) on an unmaintained or irregularly maintained device that uses the fbdev backend will likely result in blank screen after the "pmbootstrap loading" splash screen. Log in via ssh and check the file /etc/xdg/weston/weston.ini for an entry such as backend=fbdev-backend.so. Compare this to the value in weston.ini.default, likely backend=drm-backend.so.

The tinydm.log in case of fbdev may have entries such as:

Session: /usr/share/wayland-sessions/weston.desktop
Desktop: weston
Exec:    dbus-run-session start_weston.sh
...
failed to connect to Wayland display: No such file or directory
failed to create display: No such file or directory

The logread command may show entries such as:

Using config file '/etc/xdg/weston/weston.ini'
...
Loading module '/usr/lib/libweston-10/fbdev-backend.so'
Failed to load module: Error loading shared library /usr/lib/libweston-10/fbdev-backend.so: No such file or directory
fatal: failed to create compositor backend