James and I were looking into this on IRC yesterday. The chat started at 9:48 where James appeared as Guest22, later as Guest12 and as Bluewolf. I'm tomreyn.
https://irclogs.ubuntu.com/2025/03/23/%23ubuntu.html#t09:48 James: If you can confirm or correct the following, this will be appreciated. Please also note that this bug report is currently incomplete and will be automatically closed after a while unless you can provide log files as indicated above. Symptoms: The main symptom is that, after the system boots up fine, reaches GDM, and the user logs in, the screen turns black before the Gnome Desktop appears. Switching to a text-based TTY and back to the Desktop works around it, making the Desktop show and work normally. Environment: Mar 23 19:27:40 Wolf kernel: Linux version 6.11.0-19-generic (buildd@lcy02-amd64-014) (x86_64-linux-gnu-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0, GNU ld (GNU Binutils for Ubuntu) 2.42) #19~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Mon Feb 17 11:51:52 UTC 2 (Ubuntu 6.11.0-19.19~24.04.1-generic 6.11.11) Mar 23 19:27:40 Wolf kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-6.11.0-19-generic root=UUID=d0ee2dbf-4de3-4bb8-864f-f4c1680d3f7e ro quiet splash vt.handoff=7 This is now a Ubuntu 24.04 LTS system, freshly installed based on the 24.04.2 amd64 Desktop ISO. During most of the IRC chat this was also a (non release upgraded) 24.04 installation (based on an amd64 Desktop installer ISO from last year, so < 24.04.2), but not entirely fresh. Towards the end of the conversation, James decided to do a BIOS upgrade and fresh installation to establish whether this situation also occurs on a clean 24.04.2 install - which it does. Remediation attempts/results: - Attempted, without change of symptoms: echo "blacklist i2c_nvidia_gpu" | sudo tee /etc/modprobe.d/blacklist_i2c-nvidia-gpu.conf >/dev/null && sudo update-initramfs -u && reboot - Attempted, without change of symptoms: Login, from GDM graphical login, to Gnome on Wayland rather than Gnome on Xorg - Attempted, without change of symptoms: Setting, in gdm3.conf, WaylandEnable to "true" or "false", reboot - Attempted, with change of symptoms: James reported that the observed symptoms did NOT occur when enabling automatic login, so that GDM would not ask for username + password What I am describing is the user affecting issue. This may or may not be directly related to the repeatedly logged "Failed to grab modeset ownership" message. ** Summary changed: - nvidia-graphics-drivers-550 Crash on login. Black Screen, TTY Switching to Solve. + Black screen after login, workaround: TTY switching ** Tags added: noble ** Project changed: nvidia-drivers-ubuntu => nvidia-graphics-drivers-550 (Ubuntu) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-550 in Ubuntu. https://bugs.launchpad.net/bugs/2103957 Title: Black screen after login, workaround: TTY switching Status in nvidia-graphics-drivers-550 package in Ubuntu: Incomplete Bug description: nvidia-gpu 0000:01:00.3: i2c timeout error e0000000 [drm:nv_drm_master_set [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership [drm:nv_drm_master_set [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership [drm:nv_drm_master_set [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership [drm:nv_drm_master_set [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-550/+bug/2103957/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
