![]() Note: If you have an Enterprise subscription, you can configure computers remotely or in bulk using Group Policy. On the main display, I have the presenter view. Create a String value named CaptureMethod and set a value of 1. VNC Screen Sharing only for one display Ask Question Asked 6 years, 3 months ago Modified 6 years, 3 months ago Viewed 1k times 2 I have a Mac from which I make presentation (keynote). This can also be specified using the Registry, in the HKLM\Software\RealVNC\vncserver key. On the Expert tab, filter the list for CaptureMethod, and set the value to 1.Select Options from the hamburger menu.On the remote Windows computer, open the VNC Server dialog.When enabled, VNC only updates half the number of pixels in the screen. Change the VNC Server CaptureMethod parameter: If you're planning to have clients who are on a dial-up connection to connect to.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 Windows is not set to a "Battery Saver" power mode. ![]() Change your Power settings on the VNC Server computer to never turn off the monitors/displays.Upgrade VNC Server to version 6.5.0, as this version contains some changes to try and automatically recover from a blank screen.Ive also made sure ufw is disabled so no ports are being blocked. Ive verified Im running gdm3 and xorg server. Ive tried both tightVNC and VNCConnect viewers and both have the same issue. At this time, there are some known workarounds you can try below: I can connect to the VM and control the desktop, but Im unable to view anything. It appears that in the above situations, Windows does not correctly report graphical updates to be captured by VNC Server using DirectX. 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. the Start Menu is smaller than expected.In some circumstances, your Windows 10 (1803 or later)/ Windows Server (2016 or later)/Windows 11 remote computer will not display correctly in VNC Viewer.
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