** Description changed: - Ubuntu 26.04 LTS installed a newer HWE kernel, 7.0.0-22-generic, but - the matching prebuilt NVIDIA kernel module package for nvidia-driver-595 - is not available in the enabled Ubuntu repositories. + Ubuntu 26.04 LTS installed a newer HWE kernel, 7.0.0-22-generic, but the + matching prebuilt NVIDIA kernel module package for nvidia-driver-595 is + not available in the enabled Ubuntu repositories. - As a result, after a normal system update and reboot, the system booted into 7.0.0-22-generic without a loadable NVIDIA kernel module. GNOME/Wayland fell back to a degraded display path and the monitor was - only exposed as "None-1" at 1024x768. nvidia-smi failed because it could not communicate with the NVIDIA driver. + As a result, after a normal system update and reboot, the system + booted into 7.0.0-22-generic without a loadable NVIDIA kernel module. + GNOME/Wayland fell back to a degraded display path and the monitor was + only exposed as "None-1" at 1024x768. nvidia-smi failed because it could + not communicate with the NVIDIA driver. - Booting the previous kernel, 7.0.0-15-generic, restores NVIDIA + Booting the previous kernel, 7.0.0-15-generic, restores NVIDIA correctly because linux-modules-nvidia-595-7.0.0-15-generic is installed. - This appears to be a package publishing / dependency consistency issue + This appears to be a package publishing / dependency consistency issue between linux-image-generic-hwe-26.04 and linux-modules- nvidia-595-generic-hwe-26.04. - System information: + System information: - Ubuntu release: + Ubuntu release: - Ubuntu 26.04 LTS - Codename: resolute + Ubuntu 26.04 LTS + Codename: resolute - GPU: + GPU: - NVIDIA GeForce RTX 4060 Ti - PCI ID: 10de:2803 - Subsystem: Gigabyte Technology Co., Ltd Device 1458:4123 + NVIDIA GeForce RTX 4060 Ti + PCI ID: 10de:2803 + Subsystem: Gigabyte Technology Co., Ltd Device 1458:4123 - Installed NVIDIA driver: + Installed NVIDIA driver: - nvidia-driver-595 595.71.05-0ubuntu0.26.04.1 + nvidia-driver-595 595.71.05-0ubuntu0.26.04.1 - Current workaround: + Current workaround: - Booted back into 7.0.0-15-generic and set GRUB_DEFAULT to: - "Advanced options for Ubuntu>Ubuntu, with Linux 7.0.0-15-generic" + Booted back into 7.0.0-15-generic and set GRUB_DEFAULT to: + "Advanced options for Ubuntu>Ubuntu, with Linux 7.0.0-15-generic" - Package state: + Package state: - linux-image-generic-hwe-26.04: - Installed: 7.0.0-22.22 - Candidate: 7.0.0-22.22 + linux-image-generic-hwe-26.04: + Installed: 7.0.0-22.22 + Candidate: 7.0.0-22.22 - linux-image-7.0.0-22-generic: - Installed: 7.0.0-22.22 + linux-image-7.0.0-22-generic: + Installed: 7.0.0-22.22 - linux-headers-7.0.0-22-generic: - Installed: 7.0.0-22.22 + linux-headers-7.0.0-22-generic: + Installed: 7.0.0-22.22 - linux-modules-7.0.0-22-generic: - Installed: 7.0.0-22.22 + linux-modules-7.0.0-22-generic: + Installed: 7.0.0-22.22 - linux-modules-nvidia-595-generic-hwe-26.04: - Installed: 7.0.0-15.15+2 - Candidate: 7.0.0-15.15+2 + linux-modules-nvidia-595-generic-hwe-26.04: + Installed: 7.0.0-15.15+2 + Candidate: 7.0.0-15.15+2 - linux-modules-nvidia-595-7.0.0-15-generic: - Installed: 7.0.0-15.15+2 + linux-modules-nvidia-595-7.0.0-15-generic: + Installed: 7.0.0-15.15+2 - linux-modules-nvidia-595-7.0.0-22-generic: - Not available from apt-cache policy output + linux-modules-nvidia-595-7.0.0-22-generic: + Not available from apt-cache policy output - Expected result: + Expected result: - If linux-image-generic-hwe-26.04 is upgraded to 7.0.0-22, the matching linux-modules-nvidia-595 package for 7.0.0-22 should also be available and installed, or the kernel upgrade should be held back for - systems using prebuilt NVIDIA modules. + If linux-image-generic-hwe-26.04 is upgraded to 7.0.0-22, the + matching linux-modules-nvidia-595 package for 7.0.0-22 should also be + available and installed, or the kernel upgrade should be held back + for systems using prebuilt NVIDIA modules. - Actual result: + Actual result: - The system installed and booted linux-image-7.0.0-22-generic, but no matching linux-modules-nvidia-595-7.0.0-22-generic package was available. NVIDIA failed to load on the new kernel, causing degraded - display output at 1024x768. + The system installed and booted linux-image-7.0.0-22-generic, but no + matching linux-modules-nvidia-595-7.0.0-22-generic package was + available. NVIDIA failed to load on the new kernel, causing + degraded display output at 1024x768. - Reproduction steps: + Reproduction steps: - 1. Use Ubuntu 26.04 LTS with NVIDIA GeForce RTX 4060 Ti and nvidia-driver-595. - 2. Install updates normally. - 3. System installs linux-image-generic-hwe-26.04 version 7.0.0-22.22. - 4. Reboot into 7.0.0-22-generic. - 5. NVIDIA driver does not load. - 6. nvidia-smi fails and display falls back to low resolution. - 7. Booting previous kernel 7.0.0-15-generic restores NVIDIA. + 1. Use Ubuntu 26.04 LTS with NVIDIA GeForce RTX 4060 Ti and nvidia-driver-595. + 2. Install updates normally. + 3. System installs linux-image-generic-hwe-26.04 version 7.0.0-22.22. + 4. Reboot into 7.0.0-22-generic. + 5. NVIDIA driver does not load. + 6. nvidia-smi fails and display falls back to low resolution. + 7. Booting previous kernel 7.0.0-15-generic restores NVIDIA. - Relevant observations from the failing boot: + Relevant observations from the failing boot: - nvidia-smi failed with: - NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. + nvidia-smi failed with: + NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. - Display output under the failing kernel was: - None-1 connected primary 1024x768 + Display output under the failing kernel was: + None-1 connected primary 1024x768 - Journal showed EDID/display-related fallback symptoms: - colord: failed to get edid data: EDID length is too small - gnome-shell: Couldn't find suitable cursor plane format for /dev/dri/card0, disabling HW cursor + Journal showed EDID/display-related fallback symptoms: + colord: failed to get edid data: EDID length is too small + gnome-shell: Couldn't find suitable cursor plane format for /dev/dri/card0, disabling HW cursor - Under the working 7.0.0-15-generic kernel: + Under the working 7.0.0-15-generic kernel: - nvidia-smi works correctly. - lspci shows: - Kernel driver in use: nvidia - Kernel modules: nvidiafb, nouveau, nova_core, n + nvidia-smi works correctly. + lspci shows: + Kernel driver in use: nvidia + Kernel modules: nvidiafb, nouveau, nova_core, n ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: xorg (not installed) ProcVersionSignature: Ubuntu 7.0.0-15.15-generic 7.0.0 Uname: Linux 7.0.0-15-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.34.0-0ubuntu2 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Sat May 30 12:04:33 2026 InstallationDate: Installed on 2026-05-17 (13 days ago) InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1) ProcEnviron: - LANG=zh_CN.UTF-8 - PATH=(custom, no user) - SHELL=/usr/bin/zsh - XDG_RUNTIME_DIR=<set> + LANG=zh_CN.UTF-8 + PATH=(custom, no user) + SHELL=/usr/bin/zsh + XDG_RUNTIME_DIR=<set> SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2154617 Title: Ubuntu 26.04 HWE kernel updated to 7.0.0-22 without matching linux- modules-nvidia-595 package, causing NVIDIA display failure To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/2154617/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
