Public bug reported:
Package: gnome-remote-desktop 50.2-0ubuntu0.1 (FreeRDP
3.32.0+dfsg-0ubuntu0.26.04.1) Release: Ubuntu 26.04.1 LTS, GNOME on
Wayland, remote login via GDM (headless, Hyper-V guest) Client: Windows
11 Pro 10.0.26200 built-in Remote Desktop Connection (mstsc), clipboard
redirection on
Steps to reproduce: 1. Connect to the Ubuntu machine with mstsc and log
in through the GDM remote-login screen. 2. On Windows, copy a file in
Explorer (Ctrl+C on a file on the Desktop). 3. In the RDP session, open
Nautilus and right-click in a folder.
Expected: the context menu opens (with Paste available). Actual: the RDP
picture freezes immediately and stays frozen. The session itself is
fine: gnome-shell and Nautilus keep answering D-Bus pings, and nothing
is in D state. The user-session daemon (gnome-remote-desktop-daemon
--handover) has its main thread spinning at ~100% CPU (top -H), so no
frames are sent. The client keeps sending refresh-rect requests, which
are ignored. About 90 s later gnome-shell logs: gnome-shell: Could not
fetch selection data: Remote selection transfer was cancelled The
display still doesn’t recover. After the client disconnects, the daemon
stays stuck in “stopping session” at ~90% CPU, logging BIO_should_retry
... Broken pipe once a minute, and blocks reconnects. systemctl --user
stop needs systemd’s SIGKILL timeout.
Reproduced twice on 2026-10-03 (11:16 and 11:40 EDT). The CLIPRDR FUSE
mount (/run/user/1000/gnome-remote-desktop/cliprdr-*) existed and was
listable during the freeze.
Recovery: close the client, copy plain text on Windows, systemctl --user
kill -s KILL gnome-remote-desktop-handover.service; systemctl --user
restart gnome-remote-desktop-handover.service, reconnect. The session
survives. Note: restarting the system gnome-remote-desktop.service while
the user session is alive leaves GDM’s RemoteDisplay pointing at a stale
client id. After that every GDM remote login authenticates but never
hands over ([DaemonHandover] Failed to start handover:
...UnknownObject), and only ending the session or rebooting recovers it.
Regression: copying files from Windows used to work on this setup.
Candidate changes: - freerdp3 3.31.0 -> 3.32.0 security update
(installed 2026-09-29) - mutter 50.1-0ubuntu2.2 -> 2.4 (2026-09-20) -
gnome-remote-desktop 50.0 -> 50.2 (2026-08-22)
Possibly related, from the handover daemon at startup: ***
pw_stream_set_active called from wrong context, check thread and
locking: Device or resource busy g_close(fd:0) failed with EBADF. The
tracking of file descriptors got messed up (system daemon)
g_atomic_ref_count_dec: assertion ‘old_value > 0’ failed AppArmor also
denies dac_override/setuid for profile “fusermount3” on every cliprdr
mount/unmount. Mounting still succeeds, so this probably isn’t the
cause.
Attached: grd-freeze-journal.txt (journal excerpts), versions.txt.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: gnome-remote-desktop 50.2-0ubuntu0.1
ProcVersionSignature: Ubuntu 7.0.0-1017.17-azure 7.0.14
Uname: Linux 7.0.0-1017-azure x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sat Oct 3 11:59:05 2026
InstallationDate: Installed on 2026-04-25 (161 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: gnome-remote-desktop
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.default.apport: [modified]
mtime.conffile..etc.default.apport: 2026-08-29T21:25:48.949645
** Affects: gnome-remote-desktop (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
** Attachment added: "grd-freeze-journal"
https://bugs.launchpad.net/bugs/2169422/+attachment/6005325/+files/versions.txt
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https://bugs.launchpad.net/bugs/2169422
Title:
RDP display freezes (handover daemon main thread at 100% CPU) when
Nautilus queries a clipboard holding files copied on the Windows
client
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