Hi, When booting my Guix System with linux-libre 6.0.8, nouveau silently fails to render OpenGL. It includes symptoms such as: 1. Getting stuck on the GDM screen, which makes use of OpenGL 2. Not being able to use Qt5 or Qt6 applications, which renders via OpenGL. 3. the 'glxgears' program from mesa-utils displays frozen gears (not turning) My graphic card is an old nvidia 8800 GTS with 640 MiB of video RAM. Workaround: Adding the '(kernel linux-libre-5.15)' to my OS definition fixes it. -- Thanks, Maxim