I'll try to fix that as an SRU. In the meanwhile, as the fallback is just run as you don't have compositing, you can choose the 2D session in gdm which will launch directly the fallback.
I'll try to fix that as an SRU. In the meanwhile, as the fallback is just run as you don't have compositing, you can choose the 2D session in gdm which will launch directly the fallback.