** Description changed: + Hardware & System Info: + Kernel: Linux towerq 6.19.0-9-generic #9-Ubuntu SMP PREEMPT_DYNAMIC Thu Mar 5 14:49:21 UTC 2026 x86_64 GNU/Linux + GPU/Driver: 02:00.0 VGA compatible controller [0300]: NVIDIA Corporation AD104 [GeForce RTX 4070 Ti] [10de:2782] (rev a1) + Subsystem: ASUSTeK Computer Inc. Device [1043:88dd] + Kernel driver in use: nvidia + Kernel modules: nvidiafb, nouveau, nova_core, nvidia_drm, nvidia - Hardware & System Info: - Kernel: Linux towerq 6.19.0-9-generic #9-Ubuntu SMP PREEMPT_DYNAMIC Thu Mar 5 14:49:21 UTC 2026 x86_64 GNU/Linux - GPU/Driver: 02:00.0 VGA compatible controller [0300]: NVIDIA Corporation AD104 [GeForce RTX 4070 Ti] [10de:2782] (rev a1) - Subsystem: ASUSTeK Computer Inc. Device [1043:88dd] - Kernel driver in use: nvidia - Kernel modules: nvidiafb, nouveau, nova_core, nvidia_drm, nvidia - - Secure Boot: Enabled (Kernel Lockdown active) + Secure Boot: Enabled (Kernel Lockdown active) Description: Ubuntu Resolute Raccoon (development branch) Steps to reproduce: - Boot the system with Secure Boot enabled. + Boot the system with Secure Boot enabled. - Attempt to Suspend or Hibernate via the GNOME power menu. - System hangs instantly. + Attempt to Suspend or Hibernate via the GNOME power menu. + System hangs instantly. "Note: The 'Suspend' option is missing or disabled in the GNOME power menu. Attempting to force suspend/hibernate via other methods leads to an immediate system lockup. This appears to be a regression in how the kernel handles power states when Lockdown is active." yakub@towerq:~/Documents$ systemctl can-suspend && echo "Suspend OK" || echo "Suspend BLOCKED" Unknown command verb 'can-suspend', did you mean 'suspend'? Suspend BLOCKED yakub@towerq:~/Documents$ systemctl can-hibernate && echo "Hibernate OK" || echo "Hibernate BLOCKED" Unknown command verb 'can-hibernate', did you mean 'hibernate'? Hibernate BLOCKED yakub@towerq:~/Documents$ busctl get-property org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager CanSuspend Failed to get property CanSuspend on interface org.freedesktop.login1.Manager: Unknown interface org.freedesktop.login1.Manager or property CanSuspend. Logs analysis: Journalctl shows a significant gap in logs between the suspend attempt and the hard reset. However, the following critical error was found right before the session start: Lockdown: systemd-logind: hibernation is restricted; see man kernel_lockdown.7 ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-6.19.0-9-generic 6.19.0-9.9 ProcVersionSignature: Ubuntu 6.19.0-9.9-generic 6.19.5 Uname: Linux 6.19.0-9-generic x86_64 NonfreeKernelModules: zfs ApportVersion: 2.33.1-0ubuntu3 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: Unity Date: Mon Mar 16 17:53:01 2026 InstallationDate: Installed on 2026-03-13 (3 days ago) InstallationMedia: Ubuntu 26.04 LTS "Resolute Raccoon" - Daily amd64 (20260313) MachineType: ASUS System Product Name ProcEnviron: - LANG=en_US.UTF-8 - PATH=(custom, no user) - TERM=xterm-256color - XDG_RUNTIME_DIR=<set> + LANG=en_US.UTF-8 + PATH=(custom, no user) + TERM=xterm-256color + XDG_RUNTIME_DIR=<set> ProcFB: 0 nvidia-drmdrmfb ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_o2oj4n@/vmlinuz-6.19.0-9-generic root=ZFS=rpool/ROOT/ubuntu_o2oj4n ro quiet splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/25/2025 dmi.bios.release: 30.1 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3001 dmi.board.asset.tag: Default string dmi.board.name: ROG MAXIMUS Z790 HERO dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3001:bd04/25/2025:br30.1:svnASUS:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnROGMAXIMUSZ790HERO:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.sku: SKU dmi.product.version: System Version dmi.sys.vendor: ASUS + + + + akub@towerq:~/Documents$ systemd-inhibit --list + WHO UID USER PID COMM WHAT > + ModemManager 0 root 4070 ModemManager sleep > + NetworkManager 0 root 3968 NetworkManager sleep > + Realtime Kit 0 root 4326 rtkit-daemon sleep > + UPower 0 root 4645 upowerd sleep > + Unattended Upgrades Shutdown 0 root 4149 unattended-upgr shutdown > + GNOME Shell 1000 yakub 8474 gnome-shell sleep > + GNOME Shell 1000 yakub 8474 gnome-shell sleep > + yakub 1000 yakub 8603 gsd-power handle-lid-switch > + yakub 1000 yakub 8602 gsd-media-keys handle-power-key:handle-susp> + yakub 1000 yakub 8602 gsd-media-keys sleep > + yakub 1000 yakub 8603 gsd-power sleep + + + + Critical update on hardware symptoms: + + I've confirmed that all USB Type-C ports are non-functional on this + system. + + This correlates with the kernel error: Serial bus multi instantiate + pseudo device driver INT3515:00: error -ENXIO: IRQ index 1 not found. + + The monitor is connected via DisplayPort. + + The failure of the UCSI driver (INT3515) might be causing a cascade + failure in power management, preventing the GPU from re-initializing the + DisplayPort link after the monitor is turned off or the system attempts + to sleep. + + + Important Evidence: + I've confirmed that all hardware (DisplayPort and USB-C ports) works perfectly on Windows on the same machine. This proves the hardware is functional. The issues (Type-C non-functional, INT3515 IRQ error, and Black Screen after monitor power cycle) are strictly related to the Linux kernel/driver implementation on this specific hardware configuration.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2144584 Title: Suspend/Hibernate missing from GNOME menu and causing hard freeze due to Kernel Lockdown (Secure Boot) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2144584/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
