Comment # 12 on bug 83422 from simon

@Michel Dänzer

the problem remains. in the meantime i have updated my kde plasma next via
kubuntu ppa's like i  am doing everyday, and while the content in the xorg.conf
remains the same, i now have the black screen again :(

next stop mesa drivers?
could you tell me what exactly do i have look for in the ppa's as this seems to
be a custom install and not included in the updates.