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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May 2023
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