Public bug reported:
I had someone compile KRDP and I was able to connect to that linux box directly
from windows.
I installed KDE Neon into a VM, and KRDP worked.
Then I installed Ubuntu - gnome, and RDP worked.
I tried the following Kubuntu Versions from Canonical: Kubuntu Studio 26.04,
Kubuntu 26.10, and Kubuntu 26.04 and installed KRDP onto all of them, and none
of them worked. These were fresn unmodified installs. The only changes made
were updates and installing KRDP.
When installing krdp, I did the following command: sudp apt install krdp
All of these were in a Virtual machine, and I made sure the VM had bridged
networking in virtualbox so the VMs would adopt the local networks IP addresses.
Something that canonical is doing when packaging kubuntu and KRDP is messing
things up.
LOGS ARE BELOW:
:~$ journalctl --user -b --since "10 min ago" | grep -i krdp
Oct 20 00:58:02 kubuntu sudo[18430]: aaron : TTY=/dev/pts/1 ; PWD=/home/aaron ;
USER=root ; COMMAND=/usr/bin/apt install krdp
Oct 20 00:58:32 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Generating
certificate files to: "/home/aaron/.local/share/krdpserver/krdp.crt" and
"/home/aaron/.local/share/krdpserver/krdp.key"
Oct 20 00:58:32 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Certificate
generated; ready to accept connections.
Oct 20 00:58:35 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Toggling KRDP
Server to true over QDBus
Oct 20 00:58:35 kubuntu systemd[1057]: Starting app-org.kde.krdpserver.service
- KRDP Server...
Oct 20 00:58:35 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Configured
pre-authorization in portal permission store
Oct 20 00:58:35 kubuntu systemd[1057]: Started app-org.kde.krdpserver.service -
KRDP Server.
Oct 20 00:58:35 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:35 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:35 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:35 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:36 kubuntu krdpserver[18679]: VMware: No 3D enabled (0, Success).
Oct 20 00:58:36 kubuntu krdpserver[18679]: libEGL warning: egl: failed to
create dri2 screen
Oct 20 00:58:36 kubuntu krdpserver[18679]: VMware: No 3D enabled (0, Success).
Oct 20 00:58:36 kubuntu krdpserver[18679]: libEGL warning: egl: failed to
create dri2 screen
Oct 20 00:58:36 kubuntu krdpserver[18679]: No users configured for login.
Either pass a username/password or configure users using kcm_krdp.
Oct 20 00:58:36 kubuntu systemd[1057]: app-org.kde.krdpserver.service: Main
process exited, code=exited, status=255/EXCEPTION
Oct 20 00:58:36 kubuntu systemd[1057]: app-org.kde.krdpserver.service: Failed
with result 'exit-code'.
Oct 20 00:58:37 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Toggling KRDP
Server to true over QDBus
Oct 20 00:58:37 kubuntu systemd[1057]: Starting app-org.kde.krdpserver.service
- KRDP Server...
Oct 20 00:58:37 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:37 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:37 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:37 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:37 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:37 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:37 kubuntu systemd[1057]: Started app-org.kde.krdpserver.service -
KRDP Server.
Oct 20 00:58:37 kubuntu krdpserver[18695]: VMware: No 3D enabled (0, Success).
Oct 20 00:58:37 kubuntu krdpserver[18695]: libEGL warning: egl: failed to
create dri2 screen
Oct 20 00:58:37 kubuntu krdpserver[18695]: VMware: No 3D enabled (0, Success).
Oct 20 00:58:37 kubuntu krdpserver[18695]: libEGL warning: egl: failed to
create dri2 screen
Oct 20 00:58:37 kubuntu krdpserver[18695]: No users configured for login.
Either pass a username/password or configure users using kcm_krdp.
Oct 20 00:58:37 kubuntu systemd[1057]: app-org.kde.krdpserver.service: Main
process exited, code=exited, status=255/EXCEPTION
Oct 20 00:58:37 kubuntu systemd[1057]: app-org.kde.krdpserver.service: Failed
with result 'exit-code'.
Oct 20 00:58:40 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Setting KRDP
Server service autostart on login to true over QDBus
Oct 20 00:58:45 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Toggling KRDP
Server to true over QDBus
Oct 20 00:58:45 kubuntu systemd[1057]: Starting app-org.kde.krdpserver.service
- KRDP Server...
Oct 20 00:58:45 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:45 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:45 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:45 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:45 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:45 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:45 kubuntu systemd[1057]: Started app-org.kde.krdpserver.service -
KRDP Server.
Oct 20 00:58:45 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:45 kubuntu systemsettings[18646]: org.kde.krdp.kcm: Systemd unit
replied with unknown reply: "activating"
Oct 20 00:58:45 kubuntu krdpserver[18707]: VMware: No 3D enabled (0, Success).
Oct 20 00:58:45 kubuntu krdpserver[18707]: libEGL warning: egl: failed to
create dri2 screen
Oct 20 00:58:45 kubuntu krdpserver[18707]: VMware: No 3D enabled (0, Success).
Oct 20 00:58:45 kubuntu krdpserver[18707]: libEGL warning: egl: failed to
create dri2 screen
Oct 20 00:58:45 kubuntu krdpserver[18707]: org.kde.krdp: Listening for
connections on QHostAddress(QHostAddress::Any) 3389
Oct 20 00:58:45 kubuntu krdpserver[18707]: 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'")
Oct 20 00:58:49 kubuntu krdpserver[18707]: org.kde.krdp: Session setup
completed, start processing...
Oct 20 00:58:49 kubuntu krdpserver[18707]: [00:58:49:483] [18707:00004923]
[ERROR][com.winpr.sspi.NTLM] - [ntlm_fetch_ntlm_v2_hash]: Error: Could not find
user in SAM database
Oct 20 00:58:49 kubuntu krdpserver[18707]: [00:58:49:484] [18707:00004923]
[WARN][com.winpr.sspi] - [winpr_AcceptSecurityContext]: AcceptSecurityContext
status SEC_E_NO_CREDENTIALS [0x8009030e]
Oct 20 00:58:49 kubuntu krdpserver[18707]: [00:58:49:484] [18707:00004923]
[ERROR][com.freerdp.core.auth] - [credssp_auth_authenticate]:
AcceptSecurityContext status SEC_E_NO_CREDENTIALS [0x8009030e]
Oct 20 00:58:49 kubuntu krdpserver[18707]: [00:58:49:484] [18707:00004923]
[ERROR][com.freerdp.core.transport] - [transport_accept_nla]: client
authentication failure
Oct 20 00:58:49 kubuntu krdpserver[18707]: [00:58:49:484] [18707:00004923]
[ERROR][com.freerdp.core.peer] - [peer_recv_callback_internal]:
CONNECTION_STATE_NEGO - rdp_server_accept_nego() fail
Oct 20 00:58:49 kubuntu krdpserver[18707]: [00:58:49:484] [18707:00004923]
[ERROR][com.freerdp.core.transport] - [transport_check_fds]:
transport_check_fds: transport->ReceiveCallback() - STATE_RUN_FAILED [-1]
Oct 20 00:58:49 kubuntu krdpserver[18707]: org.kde.krdp: Unable to check file
descriptor
Oct 20 00:58:49 kubuntu krdpserver[18707]: org.kde.krdp: Closing session
Oct 20 00:58:49 kubuntu krdpserver[18707]: [00:58:49:484] [18707:00004913]
[WARN][com.freerdp.core.rdp] - [rdp_send_deactivate_all][0x5fb918323a40]:
rdpMcs::userId == 0, skip sending PDU_TYPE_DEACTIVATE_ALL
Oct 20 00:58:49 kubuntu krdpserver[18707]: [00:58:49:484] [18707:00004913]
[WARN][com.freerdp.core.rdp] - [rdp_send_deactivate_all][0x5fb918323a40]:
rdpMcs::userId == 0, skip sending PDU_TYPE_DEACTIVATE_ALL
Oct 20 00:58:49 kubuntu krdpserver[18707]: org.kde.krdp: No portal session to
close (session was never created)
Oct 20 00:58:54 kubuntu krdpserver[18707]: org.kde.krdp: Session setup
completed, start processing...
Oct 20 00:58:54 kubuntu krdpserver[18707]: [00:58:54:097] [18707:00004925]
[ERROR][com.winpr.sspi.NTLM] - [ntlm_fetch_ntlm_v2_hash]: Error: Could not find
user in SAM database
Oct 20 00:58:54 kubuntu krdpserver[18707]: [00:58:54:097] [18707:00004925]
[WARN][com.winpr.sspi] - [winpr_AcceptSecurityContext]: AcceptSecurityContext
status SEC_E_NO_CREDENTIALS [0x8009030e]
Oct 20 00:58:54 kubuntu krdpserver[18707]: [00:58:54:097] [18707:00004925]
[ERROR][com.freerdp.core.auth] - [credssp_auth_authenticate]:
AcceptSecurityContext status SEC_E_NO_CREDENTIALS [0x8009030e]
Oct 20 00:58:54 kubuntu krdpserver[18707]: [00:58:54:097] [18707:00004925]
[ERROR][com.freerdp.core.transport] - [transport_accept_nla]: client
authentication failure
Oct 20 00:58:54 kubuntu krdpserver[18707]: [00:58:54:097] [18707:00004925]
[ERROR][com.freerdp.core.peer] - [peer_recv_callback_internal]:
CONNECTION_STATE_NEGO - rdp_server_accept_nego() fail
Oct 20 00:58:54 kubuntu krdpserver[18707]: [00:58:54:097] [18707:00004925]
[ERROR][com.freerdp.core.transport] - [transport_check_fds]:
transport_check_fds: transport->ReceiveCallback() - STATE_RUN_FAILED [-1]
Oct 20 00:58:54 kubuntu krdpserver[18707]: org.kde.krdp: Unable to check file
descriptor
Oct 20 00:58:54 kubuntu krdpserver[18707]: org.kde.krdp: Closing session
Oct 20 00:58:54 kubuntu krdpserver[18707]: [00:58:54:098] [18707:00004913]
[WARN][com.freerdp.core.rdp] - [rdp_send_deactivate_all][0x5fb91a3f45b0]:
rdpMcs::userId == 0, skip sending PDU_TYPE_DEACTIVATE_ALL
Oct 20 00:58:54 kubuntu krdpserver[18707]: [00:58:54:098] [18707:00004913]
[WARN][com.freerdp.core.rdp] - [rdp_send_deactivate_all][0x5fb91a3f45b0]:
rdpMcs::userId == 0, skip sending PDU_TYPE_DEACTIVATE_ALL
Oct 20 00:58:54 kubuntu krdpserver[18707]: org.kde.krdp: No portal session to
close (session was never created)
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: krdp 6.6.4-0ubuntu1
ProcVersionSignature: Ubuntu 7.0.0-30.30-generic 7.0.12
Uname: Linux 7.0.0-30-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Tue Oct 20 01:00:07 2026
InstallationDate: Installed on 2026-10-20 (0 days ago)
InstallationMedia: Kubuntu 26.04.1 LTS "Resolute Raccoon" - Release amd64
(20260826.1)
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: krdp
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: krdp (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute
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https://bugs.launchpad.net/bugs/2171469
Title:
Unable to RDP from windows to Kubuntu 26.04 with KRDP installed.
To manage notifications about this bug go to:
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