On the remote Linux computer, open the VNC Server dialog.Change the VNC Server CaptureMethod parameter:.Note: RealVNC have not tested this particular emulator and it is only provided as an example An example EDID emulator can be seen here Connect an EDID emulator to the VNC Server computer.Check that Linux is not set to a "Battery Saver" power mode.Change your Power settings on the Linux computer to never turn off the monitors/displays.If you are running VNC Server on Ubuntu 18.04 LTS or later, or CentOS/RHEL 8 or later, you need to disable Wayland.Upgrade VNC Server to version 6.5.0, as this version contains some changes to try and automatically recover from a blank screen.At this time, there are some known workarounds you can try below:
It appears that in the above situations, Linux does not correctly report graphical updates to be captured by VNC Server. The issue is most commonly seen when connecting to a computer with no monitors attached (headless), or a monitor using HDMI/DisplayPort is connected but powered off. In some circumstances, your Linux remote computer will not display correctly in VNC Viewer.
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