Bug 490868

Summary:	Black Screen When Connecting to KRDP Server Using Windows 10 RDP Client
Product:	[Plasma] KRdp	Reporter:	Mike Smith <mikesmith929+kde>
Component:	general	Assignee:	Unassigned bugs <unassigned-bugs-null>
Status:	REPORTED ---
Severity:	major	CC:	ahiemstra, bugs.kde.org, postix
Priority:	NOR
Version First Reported In:	6.1.3
Target Milestone:	---
Platform:	Other
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=500434 https://bugs.kde.org/show_bug.cgi?id=500276
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Mike Smith 2024-07-26 20:03:41 UTC

***
If you're not sure this is actually a bug, instead post about it at https://discuss.kde.org

If you're reporting a crash, attach a backtrace with debug symbols; see https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***

SUMMARY


STEPS TO REPRODUCE
1. Run KRDP server as usual
2. Connect to the KRDP server using windows 10 Client
3. Accept the certificate and connect

OBSERVED RESULT
Client got a blacks screen with nothing can be controlled. I observed that only one black monitor will "spawn" not the expect two monitors. 

EXPECTED RESULT
The screen appears on the client and can be controlled. Both server and client have two monitors so both monitors on the client will display.

SOFTWARE/OS VERSIONS
Windows: 10
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 6.1.3
KDE Frameworks Version: 6.4.0
Qt Version: 6.7.2

ADDITIONAL INFORMATION
Not sure how to get a log for this but happy to provide one if directions are given.

Comment 1 Mike Smith 2024-07-26 20:09:27 UTC

This is the same bug I think as here: https://invent.kde.org/plasma/krdp/-/issues/8

I'm not sure if this is the right place or in invent and couldn't find this bug in bugs.kde so here it is.

Comment 2 Piotr Dobrogost 2025-04-02 20:29:10 UTC

I was having the same issue.
I found out that killing KRdp and then connecting again from Windows 10 Remote Desktop app works.
1. On the server run `systemctl --user status app-org.kde.krdpserver.service` and take note of pid number (`Main PID: 65971 (krdpserver)`).
2. Kill the KRdp process with `kill -9 <PID-FROM-STEP-ABOVE>`.
3. Connect again and this time it works.