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Date: Wed, 24 Jan 2024 13:21:23 -0700
From: Paul Zimmerman <pauldzim@...il.com>
To: Luben Tuikov <ltuikov89@...il.com>
Cc: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, 
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, 
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [REGRESSION BISECTED] 6.8-rc1 - Wayland hangs when connecting via
 VNC or RDP

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@...il.com> 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

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