prevent calling xrandr w/o extension available

Review Request #125074 - Created Sept. 6, 2015 and submitted

Information
Thomas Lübking
kwin
5.4
343844
Reviewers
kwin
graesslin

summarized, X11 protocol violation
"we deal the bug, ..." ;-)

New observation:
GL compositing fails, xrender is a mess. 0x0 screen probably doesn't help. => Should we somehow resort to QDesktopWidget::size()?

disabled randr extension and restarted X11
kwin crashes w/o patch - "works" with patch applied

Thomas Lübking
Martin Flöser
Martin Flöser
Thomas Lübking
Review request changed

Status: Closed (submitted)

Change Summary:

Submitted with commit 0302b97aea6a686b9d62c2d8c63b736cb9d93128 by Thomas Lübking to branch master.
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