Changing the graphics adapter type from the default VMSVGA to VBoxSVGA
fixes the problem.
** Changed in: kscreen (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/18
** Attachment added: "syslog.txt"
https://bugs.launchpad.net/ubuntu/+source/kscreen/+bug/1863138/+attachment/5328021/+files/syslog.txt
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https://bugs.launchpad.net/bugs/1863138
Title: