"screen appears" means GNOME Shell (Ubuntu desktop) appears. Following results of ps is executed in ssh console. No crash file of gnome-shell exists in /var/crash.
=============================== Power on => GDM is displayed: $ ps -ef|grep gnome gdm 1376 1294 0 10:07 tty1 00:00:00 /usr/libexec/gdm-wayland-session dbus-run-session -- gnome-session --autostart /usr/share/gdm/greeter/autostart gdm 1411 1376 0 10:07 tty1 00:00:00 dbus-run-session -- gnome-session --autostart /usr/share/gdm/greeter/autostart gdm 1419 1411 0 10:07 tty1 00:00:00 /usr/libexec/gnome-session-binary --autostart /usr/share/gdm/greeter/autostart gdm 1472 1419 5 10:07 tty1 00:00:02 /usr/bin/gnome-shell gdm 1526 1 0 10:07 tty1 00:00:00 /usr/libexec/at-spi2-registryd --use-gnome-session gdm 1566 1 0 10:07 tty1 00:00:00 /usr/bin/gjs -m /usr/share/gnome-shell/org.gnome.Shell.Notifications gdm 1898 1 0 10:07 tty1 00:00:00 /usr/bin/gjs -m /usr/share/gnome-shell/org.gnome.ScreenSaver user 2194 2127 0 10:08 pts/0 00:00:00 grep --color=auto gnome Login. Black screen with the X cursor is displayed: $ ps -ef|grep gnome user 2203 1957 0 10:08 ? 00:00:00 /usr/bin/gnome-keyring-daemon --foreground --components=pkcs11,secrets --control-directory=/run/user/1000/keyring user 2223 2196 0 10:08 tty2 00:00:00 /usr/libexec/gdm-x-session --run-script env GNOME_SHELL_SESSION_MODE=ubuntu /usr/bin/gnome-session --session=ubuntu user 2280 2223 0 10:08 tty2 00:00:00 /usr/libexec/gnome-session-binary --session=ubuntu user 2445 1957 0 10:08 ? 00:00:00 /usr/libexec/gnome-session-ctl --monitor user 2472 1957 0 10:08 ? 00:00:00 /usr/libexec/gnome-session-binary --systemd-service --session=ubuntu user 2519 1957 13 10:08 ? 00:00:03 /usr/bin/gnome-shell user 2544 1957 0 10:08 ? 00:00:00 /usr/libexec/at-spi2-registryd --use-gnome-session user 2575 1957 0 10:08 ? 00:00:00 /usr/libexec/gnome-shell-calendar-server user 2596 1957 0 10:08 ? 00:00:00 /usr/bin/gjs -m /usr/share/gnome-shell/org.gnome.Shell.Notifications user 3042 1957 0 10:08 ? 00:00:00 /usr/bin/gjs -m /usr/share/gnome-shell/org.gnome.ScreenSaver user 3174 1957 1 10:08 ? 00:00:00 /usr/libexec/xdg-desktop-portal-gnome user 3191 2519 1 10:08 ? 00:00:00 gjs /usr/share/gnome-shell/extensions/d...@rastersoft.com/app/ding.js -E -P /usr/share/gnome-shell/extensions/d...@rastersoft.com/app user 3325 2127 0 10:08 pts/0 00:00:00 grep --color=auto gnome Execute following command. $ DISPLAY=:0 timeout 1 xmessage -iconic x GNOME Shell (Ubuntu desktop) appears. $ ps -ef|grep gnome user 2203 1957 0 10:08 ? 00:00:00 /usr/bin/gnome-keyring-daemon --foreground --components=pkcs11,secrets --control-directory=/run/user/1000/keyring user 2223 2196 0 10:08 tty2 00:00:00 /usr/libexec/gdm-x-session --run-script env GNOME_SHELL_SESSION_MODE=ubuntu /usr/bin/gnome-session --session=ubuntu user 2280 2223 0 10:08 tty2 00:00:00 /usr/libexec/gnome-session-binary --session=ubuntu user 2445 1957 0 10:08 ? 00:00:00 /usr/libexec/gnome-session-ctl --monitor user 2472 1957 0 10:08 ? 00:00:00 /usr/libexec/gnome-session-binary --systemd-service --session=ubuntu user 2519 1957 4 10:08 ? 00:00:04 /usr/bin/gnome-shell user 2544 1957 0 10:08 ? 00:00:00 /usr/libexec/at-spi2-registryd --use-gnome-session user 2575 1957 0 10:08 ? 00:00:00 /usr/libexec/gnome-shell-calendar-server user 2596 1957 0 10:08 ? 00:00:00 /usr/bin/gjs -m /usr/share/gnome-shell/org.gnome.Shell.Notifications user 3042 1957 0 10:08 ? 00:00:00 /usr/bin/gjs -m /usr/share/gnome-shell/org.gnome.ScreenSaver user 3174 1957 0 10:08 ? 00:00:00 /usr/libexec/xdg-desktop-portal-gnome user 3191 2519 0 10:08 ? 00:00:00 gjs /usr/share/gnome-shell/extensions/d...@rastersoft.com/app/ding.js -E -P /usr/share/gnome-shell/extensions/d...@rastersoft.com/app user 3384 2127 0 10:09 pts/0 00:00:00 grep --color=auto gnome -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/2089709 Title: Ubuntu 24.04 (X11) sometimes logs in to a black screen with only an X cursor Status in gnome-shell package in Ubuntu: Incomplete Bug description: I recently upgraded from Ubuntu 22.04 to Ubuntu 24.04. Now whenever I log in, sometimes I'll get a blank screen. It will only show the mouse cursor as an X. The problem seems to be intermittent. So far it's only happened to me using X11. My current workaround: 1. Open another terminal (e.g. Ctrl+Alt+F6) 2. Restart gdm3 (sudo systemctl restart gdm3) This seems to be affecting many people, although I couldn't find an existing bug: https://askubuntu.com/questions/1514757/issue-with- ubuntu-24-04-black-screen-with-cursor-on-login $ lsb_release -rd No LSB modules are available. Description: Ubuntu 24.04.1 LTS Release: 24.04 $ apt-cache policy gdm3 gdm3: Installed: 46.0-2ubuntu1 Candidate: 46.0-2ubuntu1 Version table: *** 46.0-2ubuntu1 500 500 http://ca.archive.ubuntu.com/ubuntu noble/main amd64 Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: gdm3 46.0-2ubuntu1 ProcVersionSignature: Ubuntu 6.8.0-48.48-generic 6.8.12 Uname: Linux 6.8.0-48-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.28.1-0ubuntu3.1 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Tue Nov 26 14:54:33 2024 InstallationDate: Installed on 2020-04-24 (1677 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) SourcePackage: gdm3 UpgradeStatus: Upgraded to noble on 2024-11-15 (11 days ago) modified.conffile..etc.default.apport: [modified] modified.conffile..etc.init.d.apport: [modified] mtime.conffile..etc.default.apport: 2020-05-04T10:55:44.853443 mtime.conffile..etc.gdm3.custom.conf: 2022-09-08T08:54:17.642371 mtime.conffile..etc.init.d.apport: 2024-07-22T10:59:07 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2089709/+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
