Hello Benjamin, Thank you for your response and for taking the time to look into the report. I understand that, since the issue was reproduced on Linux Mint, it cannot be investigated further through the Ubuntu kernel bug tracker. I will report it to the Linux Mint team as suggested. For completeness, I also tested the newly released kernel 7.0.0-31-generic on the same machine, with the same NVIDIA 595.84 driver and the same configuration. The hibernation/resume problem is now completely fixed. My regression testing is therefore: - 7.0.0-28-generic: hibernation/resume works correctly - 7.0.0-30-generic: resume fails with nv_pmops_freeze [nvidia] returns -5 - 7.0.0-31-generic: hibernation/resume works correctly again, with the complete desktop session restored This strongly suggests that the regression introduced in 7.0.0-30 was fixed in 7.0.0-31. Thank you again for your assistance and for pointing me toward the appropriate channel for the Linux Mint-specific report. Best regards, Seghir On Thu, 3 Sept 2026 at 19:25, Benjamin Wheeler <2165927@bugs.launchpad.net> wrote: > Hello, thanks for the information. Unfortunately, since you are using > Linux Mint, you will need to open a bug report with the Linux Mint team, > or reproduce the issue on Ubuntu (https://ubuntu.com/download). I > believe you can start here > https://forums.linuxmint.com/viewforum.php?f=49 > > Thank you and good luck! > > ** Changed in: linux (Ubuntu) > Status: Confirmed => Invalid > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/2165927 > > Title: > Hibernation resume fails with nv_pmops_freeze returns -5 on kernel > 7.0.0-30-generic (regression from 7.0.0-28-generic) > > Status in linux package in Ubuntu: > Invalid > > Bug description: > Ubuntu 26.04 LTS (Resolute Raccoon), kernel 7.0.0-30-generic (Ubuntu > 7.0.0-30.30-generic / upstream 7.0.12) — running as Linux Mint 22.3. > > System information: > - Distro: Linux Mint 22.3, based on Ubuntu 24.04 LTS (Noble Numbat), > kernel 7.0.0-30-generic (Ubuntu 7.0.0-30.30~24.04.1-generic). > - Host: ASUS TUF Dash F15 FX517ZE (Optimus hybrid graphics) > - CPU: Intel 12th Gen i7-12650H > - GPU: NVIDIA GeForce RTX 3050 Ti Mobile + Intel Alder Lake-P UHD > Graphics > - NVIDIA driver: 595.84 (Open Kernel Module) > - PRIME mode: on-demand > - Affected kernel: 7.0.0-30-generic (working: 7.0.0-28-generic, same > driver) > > Description: > > Hibernation worked reliably until approximately three weeks ago. After > a kernel upgrade from 7.0.0-28-generic to 7.0.0-30-generic, > hibernation resume consistently fails. > > The hibernation image is written successfully. On the next boot, the > kernel correctly detects and loads the saved image (100% progress, > "Image successfully loaded"), but immediately afterward the NVIDIA > driver fails to freeze the PCI device during the atomic restore step: > > nvidia 0000:01:00.0: PM: pci_pm_freeze(): nv_pmops_freeze [nvidia] > returns -5 > nvidia 0000:01:00.0: PM: dpm_run_callback(): pci_pm_freeze returns -5 > nvidia 0000:01:00.0: PM: failed to quiesce async: error -5 > PM: hibernation: Failed to load image, recovering. > PM: hibernation: resume failed (-5) > > The kernel then aborts the restore and boots fresh, discarding the > saved session entirely (all open applications are lost). > > Steps to reproduce: > 1. Open several applications (tested with ParaView, browser, terminal) > 2. sudo systemctl hibernate > 3. Power the machine back on > 4. Observe: fresh boot instead of restored session; dmesg shows the > error above > > Regression testing performed: > - Kernel 7.0.0-28-generic + driver 595.84 -> hibernation/resume works > perfectly, all windows restored > - Kernel 7.0.0-30-generic + driver 595.84 -> fails every time with the > error above > > Additional tests performed (none resolved the issue on kernel 30): > - NVreg_PreserveVideoMemoryAllocations=1 already set by default (via > /lib/modprobe.d/nvidia-runtimepm.conf) -- no effect > - Disabling GPU firmware (NVreg_EnableGpuFirmware=0) -- no effect, > identical error > - nvidia-hibernate.service, nvidia-resume.service, > nvidia-suspend.service all confirmed enabled > > Related bug (different symptom, same kernel/driver pair): > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2164816 -- > describes a hibernation write/poweroff failure on the same kernel > 7.0.0-30-generic with a newer NVIDIA GPU (RTX 5060 Ti). My issue occurs > during resume/restore instead, which may indicate a broader PM regression > affecting the NVIDIA driver's PCI freeze/thaw callbacks introduced in this > kernel version. > > Full dmesg output attached showing the failure at the "nv_pmops_freeze" > line. > --- > ProblemType: Bug > ApportVersion: 2.28.3-0ubuntu0.1 > Architecture: amd64 > AudioDevicesInUse: > USER PID ACCESS COMMAND > /dev/snd/controlC2: seghir 1566 F.... wireplumber > /dev/snd/controlC0: seghir 1566 F.... wireplumber > /dev/snd/controlC1: seghir 1566 F.... wireplumber > /dev/snd/seq: seghir 1563 F.... pipewire > CRDA: N/A > CasperMD5CheckResult: unknown > CurrentDesktop: X-Cinnamon > DistroRelease: Linux Mint 22.3 > HibernationDevice: RESUME=UUID=3413547b-d881-4439-990b-994ec8807450 > MachineType: ASUSTeK COMPUTER INC. ASUS TUF Dash F15 FX517ZE_TUF517ZE > Package: linux (not installed) > ProcFB: 0 i915drmfb > ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-30-generic > root=UUID=4b23724b-e789-4437-9b4e-ba97027762d7 ro quiet splash > resume=UUID=3413547b-d881-4439-990b-994ec8807450 > ProcVersionSignature: Ubuntu 7.0.0-30.30~24.04.1-generic 7.0.12 > PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No > PulseAudio daemon running, or not running as session daemon. > RelatedPackageVersions: > linux-restricted-modules-7.0.0-30-generic N/A > linux-backports-modules-7.0.0-30-generic N/A > linux-firmware > 20240318.git3b128b60-0ubuntu2.29 > Tags: zena > Uname: Linux 7.0.0-30-generic x86_64 > UpgradeStatus: No upgrade log present (probably fresh install) > UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo users > _MarkForUpload: True > dmi.bios.date: 12/15/2023 > dmi.bios.release: 5.26 > dmi.bios.vendor: American Megatrends International, LLC. > dmi.bios.version: FX517ZE.319 > dmi.board.asset.tag: ATN12345678901234567 > dmi.board.name: FX517ZE > dmi.board.vendor: ASUSTeK COMPUTER INC. > dmi.board.version: 1.0 > dmi.chassis.asset.tag: No Asset Tag > dmi.chassis.type: 10 > dmi.chassis.vendor: ASUSTeK COMPUTER INC. > dmi.chassis.version: 1.0 > dmi.ec.firmware.release: 3.10 > dmi.modalias: > dmi:bvnAmericanMegatrendsInternational,LLC.:bvrFX517ZE.319:bd12/15/2023:br5.26:efr3.10:svnASUSTeKCOMPUTERINC.:pnASUSTUFDashF15FX517ZE_TUF517ZE:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnFX517ZE:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku:pfaASUSTUFDashF15: > dmi.product.family: ASUS TUF Dash F15 > dmi.product.name: ASUS TUF Dash F15 FX517ZE_TUF517ZE > dmi.product.version: 1.0 > dmi.sys.vendor: ASUSTeK COMPUTER INC. > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2165927/+subscriptions > > -- Abdelghani SEGHIR *Research Laboratory of Applied Hydraulics and Environment (LRHAE), * *University of Bejaia, Algeria * blogue : a-seghir.blogspot.com/ tel : +213 667 98 47 08 -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2165927 Title: Hibernation resume fails with nv_pmops_freeze returns -5 on kernel 7.0.0-30-generic (regression from 7.0.0-28-generic) Status in linux package in Ubuntu: Invalid Bug description: Ubuntu 26.04 LTS (Resolute Raccoon), kernel 7.0.0-30-generic (Ubuntu 7.0.0-30.30-generic / upstream 7.0.12) — running as Linux Mint 22.3. System information: - Distro: Linux Mint 22.3, based on Ubuntu 24.04 LTS (Noble Numbat), kernel 7.0.0-30-generic (Ubuntu 7.0.0-30.30~24.04.1-generic). - Host: ASUS TUF Dash F15 FX517ZE (Optimus hybrid graphics) - CPU: Intel 12th Gen i7-12650H - GPU: NVIDIA GeForce RTX 3050 Ti Mobile + Intel Alder Lake-P UHD Graphics - NVIDIA driver: 595.84 (Open Kernel Module) - PRIME mode: on-demand - Affected kernel: 7.0.0-30-generic (working: 7.0.0-28-generic, same driver) Description: Hibernation worked reliably until approximately three weeks ago. After a kernel upgrade from 7.0.0-28-generic to 7.0.0-30-generic, hibernation resume consistently fails. The hibernation image is written successfully. On the next boot, the kernel correctly detects and loads the saved image (100% progress, "Image successfully loaded"), but immediately afterward the NVIDIA driver fails to freeze the PCI device during the atomic restore step: nvidia 0000:01:00.0: PM: pci_pm_freeze(): nv_pmops_freeze [nvidia] returns -5 nvidia 0000:01:00.0: PM: dpm_run_callback(): pci_pm_freeze returns -5 nvidia 0000:01:00.0: PM: failed to quiesce async: error -5 PM: hibernation: Failed to load image, recovering. PM: hibernation: resume failed (-5) The kernel then aborts the restore and boots fresh, discarding the saved session entirely (all open applications are lost). Steps to reproduce: 1. Open several applications (tested with ParaView, browser, terminal) 2. sudo systemctl hibernate 3. Power the machine back on 4. Observe: fresh boot instead of restored session; dmesg shows the error above Regression testing performed: - Kernel 7.0.0-28-generic + driver 595.84 -> hibernation/resume works perfectly, all windows restored - Kernel 7.0.0-30-generic + driver 595.84 -> fails every time with the error above Additional tests performed (none resolved the issue on kernel 30): - NVreg_PreserveVideoMemoryAllocations=1 already set by default (via /lib/modprobe.d/nvidia-runtimepm.conf) -- no effect - Disabling GPU firmware (NVreg_EnableGpuFirmware=0) -- no effect, identical error - nvidia-hibernate.service, nvidia-resume.service, nvidia-suspend.service all confirmed enabled Related bug (different symptom, same kernel/driver pair): https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2164816 -- describes a hibernation write/poweroff failure on the same kernel 7.0.0-30-generic with a newer NVIDIA GPU (RTX 5060 Ti). My issue occurs during resume/restore instead, which may indicate a broader PM regression affecting the NVIDIA driver's PCI freeze/thaw callbacks introduced in this kernel version. Full dmesg output attached showing the failure at the "nv_pmops_freeze" line. --- ProblemType: Bug ApportVersion: 2.28.3-0ubuntu0.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: seghir 1566 F.... wireplumber /dev/snd/controlC0: seghir 1566 F.... wireplumber /dev/snd/controlC1: seghir 1566 F.... wireplumber /dev/snd/seq: seghir 1563 F.... pipewire CRDA: N/A CasperMD5CheckResult: unknown CurrentDesktop: X-Cinnamon DistroRelease: Linux Mint 22.3 HibernationDevice: RESUME=UUID=3413547b-d881-4439-990b-994ec8807450 MachineType: ASUSTeK COMPUTER INC. ASUS TUF Dash F15 FX517ZE_TUF517ZE Package: linux (not installed) ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-30-generic root=UUID=4b23724b-e789-4437-9b4e-ba97027762d7 ro quiet splash resume=UUID=3413547b-d881-4439-990b-994ec8807450 ProcVersionSignature: Ubuntu 7.0.0-30.30~24.04.1-generic 7.0.12 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-7.0.0-30-generic N/A linux-backports-modules-7.0.0-30-generic N/A linux-firmware 20240318.git3b128b60-0ubuntu2.29 Tags: zena Uname: Linux 7.0.0-30-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo users _MarkForUpload: True dmi.bios.date: 12/15/2023 dmi.bios.release: 5.26 dmi.bios.vendor: American Megatrends International, LLC. dmi.bios.version: FX517ZE.319 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: FX517ZE dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.ec.firmware.release: 3.10 dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvrFX517ZE.319:bd12/15/2023:br5.26:efr3.10:svnASUSTeKCOMPUTERINC.:pnASUSTUFDashF15FX517ZE_TUF517ZE:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnFX517ZE:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku:pfaASUSTUFDashF15: dmi.product.family: ASUS TUF Dash F15 dmi.product.name: ASUS TUF Dash F15 FX517ZE_TUF517ZE dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. 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