Note that I asked more or less the same question on linuxquestions.org (http://www.linuxquestions.org/questions/linux-desktop-74/flicker-and-other-problems-with-vnc-4175581635/)
I have been using tiger vnc server on a F23 laptop for a while. After a reinstall, however, it doesn't work anymore. It's a fresh install plus dnf install tigervnc-server.
The symptoms are partially displayed windows, graphics elements displayed although they should have disappeared, flickering; to a point that the GUI is unusable. This is the screenshot I uploaded to Linuxquestions: http://www.linuxquestions.org/questions/attachment.php?attachmentid=22038&d=1465285847 (I am not allowed to upload one here).
Another symptom: While the Xvnc process runs with geometry 1024x768, the client reports 1920x1024. The system where Xvnc runs has a 1368x768 screen.
The client is tight VNC on Windows 10. It has no problem with another tiger vnc server on a Centos 7 system.
I don't even know where to start looking. Any suggestions what I should do?
