I recently installed Mageia 6 on a 2014 Lenovo W540 and upon rebooting after the installation, the boot hung.
Pressing escape while it was trying to boot displayed text which ended with an error that led me to this bug:
https://bugs.mageia.org/show_bug.cgi?id=15235
The resolution for that bug was to add "xdriver=radeon" to the grub boot options. My monitor is an
Nvidia GK107GLM [Quadro k1100m]
so I added "xdriver=nvidia" at whic point the computer booted.
I am not sure whether to report this as a bug so I am asking here.
Thanks