I forgot to say what graphics driver I'm using. It is amdgpu. p.s. Sorry for the bad formatting in my previous email, it has been a while since I posted to LKML. Thanks, Paul On Wed, Jan 24, 2024 at 12:47 PM Paul Zimmerman <pauldzim@xxxxxxxxx> wrote: > > When I attempt to connect via VNC or RDP to my Ubuntu desktop, the Wayland > server seems to hang. The desktop GUI no longer works either locally or > remotely. I can still log in via ssh, so the system is still alive, > but the GUI is > frozen. If I boot into Xorg instead, everything works fine. Kernel 6.7 > works fine > also. > > I bisected this to commit f7fe64ad0f22 "drm/sched: Split free_job into > own work item". > That commit does not revert cleanly however. > > I don't see anything in dmesg when this happens. Here is a snippet from > journalctl when it happens: > Jan 23 16:14:30 paulz-Precision-5820-Tower systemd[2826]: Started > Tracker metadata extractor. > Jan 23 16:14:55 paulz-Precision-5820-Tower systemd[2826]: Started > Application launched by gnome-session-binary. > Jan 23 16:16:47 paulz-Precision-5820-Tower > gnome-remote-desktop-daemon[4158]: [16:16:47:810] [4158:4896] > [ERROR][com.freerdp.core.peer] - Incorrect RDP header. > Jan 23 16:16:47 paulz-Precision-5820-Tower > gnome-remote-desktop-daemon[4158]: [16:16:47:810] [4158:4896] > [ERROR][com.freerdp.core.peer] - peer_recv_callback: > CONNECTION_STATE_ACTIVE - peer_recv_pdu() fail > Jan 23 16:16:47 paulz-Precision-5820-Tower > gnome-remote-desktop-daemon[4158]: [16:16:47:810] [4158:4896] > [ERROR][com.freerdp.core.transport] - transport_check_fds: > transport->ReceiveCallback() - -1 > Jan 23 16:16:47 paulz-Precision-5820-Tower gnome-remote-de[4158]: > Unable to check file descriptor, closing connection > Jan 23 16:16:47 paulz-Precision-5820-Tower systemd[1]: > run-user-1001-gnome\x2dremote\x2ddesktop-cliprdr\x2d9Tp4LD.mount: > Deactivated successfully. > > This is on an x86_64 Xeon system running Ubuntu 22.04.3. Any hints on how to > debug this further? Is there a way to turn on additional debug prints for this? > > Thanks, > Paul