The Slackware-based PorteuX project has published a new release, version 2.2, which introduces several changes to the kernel and includes a fix for Xfce not locking the desktop properly. "In Xfce current there is a potential critical issue when using an NVIDIA card with Mesa drivers 25.1.x and the Xfce compositor (xfwm4) with vsync set to glx (or auto, which usually means glx). Because of this, Po