Issue

During the installation of PVE, the interface goes blank on the second step, displaying only the mouse cursor. The right-click still works. As illustrated below:

This issue is primarily caused by the industrial control motherboard, which defaults to an LVDS screen for the first display. Therefore, connecting a monitor via VGA or HDMI results in this problem.

Solution

Now that we understand the issue, we can look at the various solutions. Here are a few options:

1. Directly connect an LVDS screen. (Not universally applicable)
2. If the motherboard has an LVDS off pin, short-circuit this pin to switch to the VGA monitor.
3. Change the LVDS settings in the motherboard BIOS. Note that this option may not be available on all motherboards.
4. Use the PVE 8.x installation package, as the 8.0 package now supports command-line installation. Using the command-line method will avoid this issue.
5. On the installation screen, press the keyboard shortcut ’e’, and in the line that starts with linux /boot/, after splash=silent (make sure to manually insert a space), add video=eDP-1:d, as shown in the image below:

Conclusion

Among the solutions, options 4 and 5 are the most versatile. If you are performing a new installation, it is advisable to use the latest PVE 8.x installation package with the command-line method, as it offers better compatibility and universal applicability.