I have the same problem. I upgraded Ubuntu 22.04 to version 24.04, since then sometimes after logging in the desktop does not appear, only the X cursor on a black background.
I switched to the console by pressing ctrl + alt + f3 and restarted the computer with the reboot command. Then it works for me - most of the time. If after logging in the desktop appears, then everything is fine, the error does not appear during work, during PC sleep or during long sleep. I suspected that the old computer was to blame (CPU Intel i5-4960, motherboard ASUS Z97-A, RAM 32 GB, SSD SATA III - WD blue 1 TB) I bought a new computer (CPU Intel i5-14400, motherboard ASROCK B760 PRO RS/D4 WIFI, RAM 32 GB, SSD M.2 NVMe - WD black 1TB) I copied the UBUNTU 24.04 installation from (SSD SATA III) to the new (SSD M.2 NVMe) using ddrescue. Now I have exactly the same UBUNTU 24.04 on both the old computer and the new computer and the error is the same. This tells me that it is not a hardware problem. The problem is in UBUNTU 24.04 - the worst thing is that sometimes the login is successful, sometimes it needs to be restarted. I'm attaching prevjournal.txt ** Attachment added: "I'm attaching prevjournal.txt" https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2089709/+attachment/5848349/+files/prevjournal.txt -- 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: Intermittent blank screen after logging in on Ubuntu 24.04 with X11 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 : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

