Fixes 1.4.1's virtual-machine cursor snippet, which stopped the X server. An Xorg OutputClass section needs a Driver line; without one Xorg queues a null driver for a matching device and ends with "no screens found". If 1.4.1 left you at a text prompt: remove /etc/X11/xorg.conf.d/20-w2k-vm-cursor.conf and restart w2kdm, or simply run the install command again, which replaces the file with the corrected one and restarts the logon manager.
curl -sL jacktulli.github.io/w2k | sh
The corrected snippet turns on Xorg's software cursor for virtio-gpu, QXL, VMware, VirtualBox, bochs and simpledrm under the modesetting driver, so the pointer shows inside virtual machines.