Comment # 45 on bug 936842 from Dominique Leuenberger

(In reply to Stefan Dirsch from comment #44)
> That one maybe?
> 
> http://unix.stackexchange.com/questions/149283/xorg-with-kernel-mode-
> settings-wont-work-with-other-tty

should not be : active tty during boot is vt7 (thanks to plymouth) - and gdm
fires up on tty7 too.

> [   120.356] (EE) intel(0): failed to set mode: Permission denied [13]
is one we randomly see on Tumbleweed testing as well (rarely though)

On my qemu/kvm, I got a bit different logs: X obviously starts (but doesn't
show anything).

But there I see that the cirrus driver can't load due to a kernel module
occupying the device already - then it falls back to fbdev... (any trick for
this setup?)

But I also see permission issues when opening /dev/input/* devices - so not
much working once X started (with a black screen only)