Well, as I stated above the fix is working and now VNC and RDP connections are working again.
But I've tested gnome-remote-desktop under X11 and Wayland and there is a real performance problem in Wayland compared to X11 (key presseds are shown with a lag of seconds because refresh takes too much time). While you are connected to a gnome-remote-desktop session (using VNC or RDP) and only under Wayland the system log is populated several times per second with these messages that may be related to the performance problem: ... jun 08 10:13:08 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 4194304 bytes), total 32768 (slots), used 14 (slots) jun 08 10:13:08 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 4194304 bytes), total 32768 (slots), used 106 (slots) jun 08 10:13:08 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 8294400 bytes), total 32768 (slots), used 2 (slots) jun 08 10:13:08 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 8294400 bytes), total 32768 (slots), used 2 (slots) jun 08 10:13:08 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 8294400 bytes), total 32768 (slots), used 2 (slots) jun 08 10:13:08 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 8294400 bytes), total 32768 (slots), used 2 (slots) jun 08 10:13:09 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 1933312 bytes), total 32768 (slots), used 2 (slots) jun 08 10:13:09 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 4194304 bytes), total 32768 (slots), used 14 (slots) jun 08 10:13:09 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 4194304 bytes), total 32768 (slots), used 106 (slots) jun 08 10:13:09 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 8294400 bytes), total 32768 (slots), used 2 (slots) jun 08 10:13:13 fpgrpi kernel: swiotlb_tbl_map_single: 82 callbacks suppressed ... These messages stops when you disconnect to gnome-remote-desktop. Please, tell me if it's necessary to open another bug for this problem or can be followed here. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-remote-desktop in Ubuntu. https://bugs.launchpad.net/bugs/1970139 Title: VNC Connection doesn't work on arm64 (Raspberry Pi 4 8Gb) in Ubuntu 22.04 LTS Status in gnome-remote-desktop package in Ubuntu: Fix Released Bug description: # lsb_release -rd Description: Ubuntu 22.04 LTS Release: 22.04 # apt-cache policy gnome-remote-desktop gnome-remote-desktop: Instalados: 42.0-4ubuntu1 Candidato: 42.0-4ubuntu1 Tabla de versión: *** 42.0-4ubuntu1 500 500 http://ports.ubuntu.com/ubuntu-ports jammy/main arm64 Packages 100 /var/lib/dpkg/status # uname -a Linux fpgrpi 5.15.0-1005-raspi #5-Ubuntu SMP PREEMPT Mon Apr 4 12:21:48 UTC 2022 aarch64 aarch64 aarch64 GNU/Linux Summary of the bug: ------------------- When I try to connect to gnome-remote-desktop using VNC to a Raspberry Pi 4 Model B Rev 1.4 (8Gb) under Ubuntu 22.04 LTS the VNC client can't connect (connection is refused). The connection passes the Password check validation but don't connect (sometimes shows screen garbage before disconnecting). I've used several VNC clients (Remmina in Ubuntu and Real VNC in Android) getting the same problem failing either in X11 or Wayland. Notes: - VNC connection does work in in previous Ubuntu 21.10 version with the same architecture (arm64) and same Raspberry Pi. - VNC connection also does work in amd64 machines with Ubuntu 22.04 LTS and gnome-remote-desktop 42.0-4ubuntu1, exactly the same software version that doesn't work on arm64 (Raspberry Pi). There is no apport info at all. Also there is almost no info in the journal regarding this problem. When I try to connect to VNC server it show this: On Wayland: ----------- abr 25 00:21:42 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 1884160 bytes), total 32768 (slots), used 3 (slots) abr 25 00:21:42 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 4169728 bytes), total 32768 (slots), used 3 (slots) abr 25 00:21:42 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 8130560 bytes), total 32768 (slots), used 83 (slots) abr 25 00:21:42 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 8294400 bytes), total 32768 (slots), used 3 (slots) abr 25 00:21:42 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 8294400 bytes), total 32768 (slots), used 3 (slots) abr 25 00:21:42 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 8294400 bytes), total 32768 (slots), used 3 (slots) abr 25 00:21:42 fpgrpi kernel: vc4-drm gpu: swiotlb buffer is full (sz: 8294400 bytes), total 32768 (slots), used 3 (slots) abr 25 00:21:43 fpgrpi systemd[1381]: gnome-remote-desktop.service: Main process exited, code=killed, status=11/SEGV abr 25 00:21:43 fpgrpi systemd[1381]: gnome-remote-desktop.service: Failed with result 'signal'. abr 25 00:21:43 fpgrpi gnome-shell[1497]: D-Bus client with active sessions vanished abr 25 00:21:43 fpgrpi systemd[1381]: gnome-remote-desktop.service: Scheduled restart job, restart counter is at 1. abr 25 00:21:43 fpgrpi systemd[1381]: Stopped GNOME Remote Desktop. abr 25 00:21:43 fpgrpi systemd[1381]: Starting GNOME Remote Desktop... abr 25 00:21:43 fpgrpi systemd[1381]: Started GNOME Remote Desktop. abr 25 00:21:43 fpgrpi gnome-remote-desktop-daemon[2125]: Cannot load libcuda.so.1 abr 25 00:21:43 fpgrpi gnome-remote-desktop-daemon[2125]: Cannot load libnvidia-encode.so.1 abr 25 00:21:43 fpgrpi gnome-remote-de[2125]: RDP server started abr 25 00:21:43 fpgrpi gnome-remote-de[2125]: VNC server started On X11: ------- abr 25 00:12:18 fpgrpi systemd[2859]: gnome-remote-desktop.service: Main process exited, code=killed, status=11/SEGV abr 25 00:12:18 fpgrpi gnome-shell[3044]: D-Bus client with active sessions vanished abr 25 00:12:18 fpgrpi systemd[2859]: gnome-remote-desktop.service: Failed with result 'signal'. abr 25 00:12:18 fpgrpi systemd[2859]: gnome-remote-desktop.service: Scheduled restart job, restart counter is at 19. abr 25 00:12:18 fpgrpi systemd[2859]: Stopped GNOME Remote Desktop. abr 25 00:12:18 fpgrpi systemd[2859]: Starting GNOME Remote Desktop... abr 25 00:12:18 fpgrpi systemd[2859]: Started GNOME Remote Desktop. abr 25 00:12:19 fpgrpi gnome-remote-desktop-daemon[23876]: Cannot load libcuda.so.1 abr 25 00:12:19 fpgrpi gnome-remote-desktop-daemon[23876]: Cannot load libnvidia-encode.so.1 abr 25 00:12:19 fpgrpi gnome-remote-de[23876]: RDP server started abr 25 00:12:19 fpgrpi gnome-remote-de[23876]: VNC server started To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-remote-desktop/+bug/1970139/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
