Bug 521916 - KRDP stopped working after upgrading to Plasma 6.7.0
Summary: KRDP stopped working after upgrading to Plasma 6.7.0
Status: RESOLVED DUPLICATE of bug 521776
Alias: None
Product: KRdp
Classification: Plasma
Component: general (other bugs)
Version First Reported In: 6.7.0
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: Unassigned bugs
URL:
Keywords: regression
Depends on:
Blocks:
 
Reported: 2026-06-21 09:16 UTC by kaminata
Modified: 2026-07-01 08:23 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:


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Description kaminata 2026-06-21 09:16:36 UTC
DESCRIPTION
Immediately after upgrading to Plasma 6.7.0, KRDP stopped working. I'm trying to connect from a Linux machine; the connection attempts disconnects at once.

I've tried changing ports, restarting KRDP, and rebooting the machine, but nothing helped.

I have a backup of the operating system from before the upgrade. After restoring it, KRDP worked perfectly without any issues. I then upgraded to Plasma 6.7.0 again, and KRDP stopped working once more.

I also found reports online from other users experiencing the same problem.

Here's a log from manuallt starting KRDP from terminal:

qt.qpa.services: Failed to register with host portal QDBusError("org.freedesktop.portal.Error.Failed", "Could not register app ID: App info not found for 'org.kde.krdp-server'")
[12:15:55:004] [41631:0000a29f] [WARN][com.freerdp.core.rdp] - [log_build_warn][0x559051613730]: *************************************************
[12:15:55:004] [41631:0000a29f] [WARN][com.freerdp.core.rdp] - [log_build_warn][0x559051613730]: This build is using [experimental] build options:
[12:15:55:004] [41631:0000a29f] [WARN][com.freerdp.core.rdp] - [log_build_warn][0x559051613730]: * 'WITH_VAAPI=ON'
[12:15:55:004] [41631:0000a29f] [WARN][com.freerdp.core.rdp] - [log_build_warn][0x559051613730]: * 'WITH_VAAPI_H264_ENCODING=ON'
[12:15:55:004] [41631:0000a29f] [WARN][com.freerdp.core.rdp] - [log_build_warn][0x559051613730]: *
[12:15:55:004] [41631:0000a29f] [WARN][com.freerdp.core.rdp] - [log_build_warn][0x559051613730]: [experimental] build options might crash the application
[12:15:55:004] [41631:0000a29f] [WARN][com.freerdp.core.rdp] - [log_build_warn][0x559051613730]: *************************************************
[12:15:55:038] [41631:0000a2b0] [ERROR][com.freerdp.crypto] - [freerdp_tls_handshake]: BIO_do_handshake failed
[12:15:55:038] [41631:0000a2b0] [ERROR][com.freerdp.core.peer] - [peer_recv_callback_internal]: CONNECTION_STATE_NEGO - rdp_server_accept_nego() fail
[12:15:55:038] [41631:0000a2b0] [ERROR][com.freerdp.core.transport] - [transport_check_fds]: transport_check_fds: transport->ReceiveCallback() - STATE_RUN_FAILED [-1]
[12:15:55:039] [41631:0000a29f] [WARN][com.freerdp.core.rdp] - [rdp_send_deactivate_all][0x559051613730]: rdpMcs::userId == 0, skip sending PDU_TYPE_DEACTIVATE_ALL
[12:15:55:039] [41631:0000a29f] [ERROR][com.freerdp.core.transport] - [transport_default_write]: BIO_should_retry returned a system error 32: Broken pipe
[12:15:55:039] [41631:0000a29f] [ERROR][com.freerdp.core.peer] - [transport_default_write]: ERRCONNECT_CONNECT_TRANSPORT_FAILED [0x0002000D]
[12:15:55:039] [41631:0000a29f] [WARN][com.freerdp.core.rdp] - [rdp_send_deactivate_all][0x559051613730]: rdpMcs::userId == 0, skip sending PDU_TYPE_DEACTIVATE_ALL
[12:15:55:039] [41631:0000a29f] [ERROR][com.freerdp.core.transport] - [transport_default_write]: BIO_should_retry returned a system error 32: Broken pipe


STEPS TO REPRODUCE
1. Just upgrade to Plasma 6.7.0

OBSERVED RESULT
KRDP doesn't work at all

EXPECTED RESULT
You should can to connect to the PC.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.7.0
KDE Frameworks Version: 6.27.0
Qt Version: 6.11.1
Kernel Version: 7.0.12-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 32 × Intel® Core™ i9-14900KF
Memory: 64 GiB of RAM (62.6 GiB usable)
Graphics Processor: NVIDIA GeForce RTX 4090
Manufacturer: ASUS
Comment 1 kaminata 2026-06-26 23:11:51 UTC
Hello, this is a very serious bug for KRDP is one of the few solutions for unattended remote access. With VNC you have to confirm, with RustDesk, TeamViewer, KRDC, etc., you have to confirm. I have to access remotely my machine and now temporary I installed Sunshine but KRDP is more convenient. Can we get some attention please?
Thank you!
Comment 2 Nate Graham 2026-06-27 12:24:28 UTC
This is very likely Bug 521776.

If so, https://bugs.kde.org/show_bug.cgi?id=521776#c10 shows a workaround you can apply to fix the issue until it's releases in two days.

*** This bug has been marked as a duplicate of bug 521776 ***
Comment 3 Nate Graham 2026-06-27 12:24:36 UTC
Sorry about the breakage!
Comment 4 kaminata 2026-06-27 13:01:35 UTC
Thank you!
Comment 5 kaminata 2026-06-30 19:41:10 UTC
Unfortunately KRDP is still not workingon my end and I can't connect. It's not a duplicate of https://bugs.kde.org/show_bug.cgi?id=521776. I upgraded to Plasma 6.7.2 - KRDP is not working. I tried the workaround mentioned in the 521776 thread with the same result - KRDP is not working and I'm not able to connect.
Comment 6 kaminata 2026-06-30 19:48:18 UTC
Strabge enough even though I restarted the proces, it occurs that a restart of the PC is needed and now it's working. 
But I'd like to add one more thing: simply upgrading to Plasma 6.7.2 wasn't enough. I upgraded, rebooted, and KRDP still didn't work. It only started working after I applied the fix from the https://bugs.kde.org/show_bug.cgi?id=521776 thread and rebooted again.

*** This bug has been marked as a duplicate of bug 21776 ***
Comment 7 Christophe Marin 2026-07-01 06:09:37 UTC
(In reply to kaminata from comment #6)

> *** This bug has been marked as a duplicate of bug 21776 ***

wrong duplicate bug
Comment 8 kaminata 2026-07-01 08:23:57 UTC

*** This bug has been marked as a duplicate of bug 521776 ***