There can never be enough testing

Mon, 07 Aug 2017 14:49:35 +0000

As you may already know (if you don’t, please check these older posts) openQA, the automated testing system used by openSUSE runs daily tests on the latest KDE software from git. It works well and uncovered a number of bugs. However, it only tested X11. With Wayland starting to become usable, and some developers even switching to Wayland full time, it was a notable shortcoming. Until now.

Why would openQA not run on Wayland? The reason lies in the video driver. openQA runs its tests in a virtual machine (KVM) which uses the “cirrus” virtual hardware for video display. This virtualized video card does not expose an interface capable of interfacing with the kernel’s Direct Rendering Manager (DRM), which is required by kwin_wayland, causing a crash. To fix it, “virtio”, which presents a way for the guest OS to properly interface with the host’s hardware, is needed. Virtio can be used to emulate many parts of the VM’s hardware, including the video card. That would mean a working DRM interface, and a working Wayland session!

Wayland on dennogumi.org

There can never be enough testing