New test on January 14th 2023! VNC from another Ubuntu machine using Remmina as client is now working with severe limitations.
Documentation I found after some more research: - Probably a security feature: Remote Desktop does NOT work when: - the session is locked - even when screen is blanked via for instance the command dbus-send --session --dest=org.gnome.ScreenSaver --type=method_call /org/gnome/ScreenSaver org.gnome.ScreenSaver.SetActive boolean:true That is understandable and would not be a blocker on my use case. Another thing, though that is a blocker, is that the password keeps changing! Steps to reproduce: - Switch remote desktop on - Allow VNC (legacy method), tick "requires a password" - Set your user ID and password - Click on the button to view your password, and check this is indeed what you have set - Without locking your session or even blanking the screen, connect from another Ubuntu machine (Remmina-VNC) typing your ID and Password - This should now work - Now reboot your Raspberry Pi 4 Ubuntu 22.04 - Display again the settings about remote connection - Click on the button to view the password - It is now a whole new password apparently randomly set at start up. So now, either you need a method to get that password from command line, or set it back from command line (since you can still SSH and fortunately the SSH password is not messed around the same) or you are blocked! Questions: - Is this resetting of the remote password intended? - If so, how can we retrieve/reset it from command line (gsettings, dconf,...) - If not, should I file a different bug report? -- 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 versiĆ³n: *** 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 : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp