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Created attachment 1078382 [details] Backtrace of the crash Description of problem: KScreen crashes when trying to change resolution for vncviewer. It's reproducible almost every time, only in few cases it succeeds to change the resolution. Using "xrandr -s XXXXxYYYY" works pretty well. The issue is actually in libkscreen library and is already fixed in upstream. Version-Release number of selected component (if applicable): libkscreen-1.0.1-6.el7
Easily reproducible, granting dev_ack+.
Fixed in libkscreen-1.0.1-8.el7.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2018:0717