https://bugs.kde.org/show_bug.cgi?id=513340
Bug ID: 513340
Summary: krdp server crashes immediately after successful
client connection/authentication attempt in Plasma
Wayland session (Error 0x204).
Classification: Plasma
Product: kwin
Version First 6.4.5
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: wayland-generic
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
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SUMMARY
krdp server crashes immediately after successful client
connection/authentication attempt in Plasma Wayland session (Error 0x204).
STEPS TO REPRODUCE
1. Ensure 'krdp' (Remote Desktop) server is enabled in System Settings.
2. Ensure port 3389/tcp is allowed in UFW firewall (Confirmed UFW is active and
3389/tcp is allowed).
3. Attempt to connect using a standard RDP client (e.g., Microsoft Remote
Desktop on iPhone, or KRDC on Kubuntu itself).
OBSERVED RESULT
The Kubuntu server shows a connection notification, but the RDP client
immediately crashes/disconnects (Error code 0x204 often seen on Microsoft
clients).
The issue persists when using both MS RDP client and KRDC client.
EXPECTED RESULT
The RDP session should open and display the remote desktop without crashing.
SOFTWARE/OS VERSIONS
Windows:
macOS:
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: Kubuntu 25.10 (Development/Pre-release)
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2
ADDITIONAL INFORMATION
* Graphics Platform: Wayland
* Graphics Processor 1: NVIDIA GeForce RTX 2060
* Kernel Version: 6.17.0-7-generic (64-bit)
* This seems to be a stability issue related to kwin's screen
capturing/encoding in the Wayland environment.
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