Ah, I see that Mario already posted a patch for a "frozen desktop" problem here: https://lore.kernel.org/lkml/CAOVeLGSczkyhj61T8SZc2cK1Cjy2izV6URVa2422kcfy8ONYFw@xxxxxxxxxxxxxx/T/#t and I can confirm that patch fixes my problem as well. Sorry for the noise. Thanks, Paul On Wed, Jan 24, 2024 at 1:21 PM Paul Zimmerman <pauldzim@xxxxxxxxx> wrote: > > 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