The X11 with amdgpu fault

[mms.vanbreukelingen at gmail.com]

The output of the /var/Xorg.....log is:

xf86EnableIO: failed to open /dev/io for Extended I/O
And then
Falling 🍁 back to old probe for modesetting.
Results in:
No devices to configureNo screens to configure 

System repaired in zfs from rescue CD. 
Another one?