There is such a solution in arch。

Black screen with a desktop environment
If you get a black screen and you use a desktop environment, it may be a result of D-Bus not being properly initialized. Try running the desktop environment with dbus-launch --exit-with-session in your ~/.xinitrc file. For KDE Plasma, you can use the command /usr/lib/plasma-dbus-run-session-if-needed startplasma-x11.


If I use "startplasma-x11" to configure, the remote desktop will be black. If I use "/usr/lib/plasma-dbus-run-session-if-needed startplasma-x11" to configure, I can enter the user desktop normally. But any software cannot apply for root execution permission under non-root permission. Such as: kate, kde partitionmanager.



The system is installed on an e5-2630l v4 computer.
Everything works fine without Remote Desktop. Graphics card drivers have been downloaded and installed from official channels. The gpu is gt1030.
When I installed the system, the related package plasma xrdp xorgxrdp
The kde software is a separately installed part, konsole dolphi kate ark

This is the only information I can think of that would help resolve the issue at the moment.