Beginners Questions • Re: [O/S] Suspension and hibernation in Debian 12

Code:

$ uname -aLinux 08i7-2500 6.1.0-31-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07) x86_64 GNU/Linux$ sudo cat /sys/power/disk[platform] shutdown reboot suspend test_resume$ sudo cat /sys/kernel/debug/suspend_statssuccess: 0fail: 6failed_freeze: 0failed_prepare: 0failed_suspend: 7failed_suspend_late: 0failed_suspend_noirq: 0failed_resume: 0failed_resume_early: 0failed_resume_noirq: 0failures:  last_failed_dev:0000:01:00.00000:01:00.0  last_failed_errno:-5-5  last_failed_step:suspendsuspend

Code:

$ sudo systemctl hibernate

Code:

$ sudo systemctl suspend

Code:

$ sudo dmesg....[  102.861760] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Quota mode: none.[  435.913410] r8169 0000:05:00.0 enp5s0: Link is Down[  435.965708] PM: suspend entry (deep)[  435.987309] Filesystems sync: 0.021 seconds[  436.354611] (NULL device *): firmware: direct-loading firmware iwlwifi-7260-17.ucode[  436.354733] (NULL device *): firmware: direct-loading firmware regulatory.db[  436.354824] (NULL device *): firmware: direct-loading firmware regulatory.db.p7s[  436.354918] (NULL device *): firmware: direct-loading firmware intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq[  436.356984] Bluetooth: hci0: Opcode 0x0c24 failed: -112[  436.358988] Freezing user space processes[  436.362657] Freezing user space processes completed (elapsed 0.001 seconds)[  436.363481] OOM killer disabled.[  436.364288] Freezing remaining freezable tasks[  436.366394] Freezing remaining freezable tasks completed (elapsed 0.001 seconds)[  436.367390] printk: Suspending console(s) (use no_console_suspend to debug)[  436.427859] sd 5:0:0:0: [sdb] Synchronizing SCSI cache[  436.438170] Bluetooth: hci0: unexpected event for opcode 0x0c24[  436.534577] NVRM: GPU 0000:01:00.0: PreserveVideoMemoryAllocations module parameter is set. System Power Management attempted without driver procfs suspend interface. Please refer to the 'Configuring Power Management Support' section in the driver README.[  436.534582] nvidia 0000:01:00.0: PM: pci_pm_suspend(): nv_pmops_suspend+0x0/0x20 [nvidia] returns -5[  436.534945] nvidia 0000:01:00.0: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x170 returns -5[  436.534950] nvidia 0000:01:00.0: PM: failed to suspend async: error -5[  436.546843] pcieport 0000:00:1c.0: Enabling MPC IRBNCE[  436.546848] pcieport 0000:00:1c.0: Intel PCH root port ACS workaround enabled[  436.559868] sd 4:0:0:0: [sda] Synchronizing SCSI cache[  436.804314] PM: Some devices failed to suspend, or early wake event detected[  437.934923] OOM killer enabled.[  437.935748] Restarting tasks ... done.[  437.941187] random: crng reseeded on system resumption[  438.262451] PM: suspend exit[  438.262680] PM: suspend entry (s2idle)[  438.283239] Filesystems sync: 0.020 seconds[  438.780039] Freezing user space processes[  438.785298] Freezing user space processes completed (elapsed 0.002 seconds)[  438.786277] OOM killer disabled.[  438.787213] Freezing remaining freezable tasks[  438.789378] Freezing remaining freezable tasks completed (elapsed 0.001 seconds)[  438.790353] printk: Suspending console(s) (use no_console_suspend to debug)[  438.803811] NVRM: GPU 0000:01:00.0: PreserveVideoMemoryAllocations module parameter is set. System Power Management attempted without driver procfs suspend interface. Please refer to the 'Configuring Power Management Support' section in the driver README.[  438.803815] nvidia 0000:01:00.0: PM: pci_pm_suspend(): nv_pmops_suspend+0x0/0x20 [nvidia] returns -5[  438.804135] nvidia 0000:01:00.0: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x170 returns -5[  438.804140] nvidia 0000:01:00.0: PM: failed to suspend async: error -5[  438.867660] sd 5:0:0:0: [sdb] Synchronizing SCSI cache[  438.867662] sd 4:0:0:0: [sda] Synchronizing SCSI cache[  439.021083] PM: Some devices failed to suspend, or early wake event detected[  439.034924] pcieport 0000:00:1c.0: Enabling MPC IRBNCE[  439.034929] pcieport 0000:00:1c.0: Intel PCH root port ACS workaround enabled[  439.108739] OOM killer enabled.[  439.109535] Restarting tasks ... done.[  439.115081] random: crng reseeded on system resumption[  439.234134] PM: suspend exit[  439.335642] Generic FE-GE Realtek PHY r8169-0-500:00: attached PHY driver (mii_bus:phy_addr=r8169-0-500:00, irq=MAC)[  439.539752] r8169 0000:05:00.0 enp5s0: Link is Down[  442.432462] r8169 0000:05:00.0 enp5s0: Link is Up - 1Gbps/Full - flow control rx/tx[  442.432477] IPv6: ADDRCONF(NETDEV_CHANGE): enp5s0: link becomes ready[  442.981612] r8169 0000:05:00.0 enp5s0: Link is Down[  443.041663] PM: suspend entry (deep)[  443.066196] Filesystems sync: 0.024 seconds[  443.425739] Bluetooth: hci0: Opcode 0x0c24 failed: -112[  443.427060] Freezing user space processes[  443.430625] Freezing user space processes completed (elapsed 0.002 seconds)[  443.431617] OOM killer disabled.[  443.432536] Freezing remaining freezable tasks[  443.502176] Bluetooth: hci0: unexpected event for opcode 0x0c24[  443.505833] Freezing remaining freezable tasks completed (elapsed 0.072 seconds)[  443.506860] printk: Suspending console(s) (use no_console_suspend to debug)[  443.611602] sd 5:0:0:0: [sdb] Synchronizing SCSI cache[  443.638107] NVRM: GPU 0000:01:00.0: PreserveVideoMemoryAllocations module parameter is set. System Power Management attempted without driver procfs suspend interface. Please refer to the 'Configuring Power Management Support' section in the driver README.[  443.638113] nvidia 0000:01:00.0: PM: pci_pm_suspend(): nv_pmops_suspend+0x0/0x20 [nvidia] returns -5[  443.638430] nvidia 0000:01:00.0: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x170 returns -5[  443.638434] nvidia 0000:01:00.0: PM: failed to suspend async: error -5[  443.639565] sd 4:0:0:0: [sda] Synchronizing SCSI cache[  443.912033] PM: Some devices failed to suspend, or early wake event detected[  445.016655] OOM killer enabled.[  445.017464] Restarting tasks ... done.[  445.053013] random: crng reseeded on system resumption[  445.357346] PM: suspend exit[  445.357555] PM: suspend entry (s2idle)[  445.372315] Filesystems sync: 0.014 seconds[  445.878839] Freezing user space processes[  445.881997] Freezing user space processes completed (elapsed 0.002 seconds)[  445.882983] OOM killer disabled.[  445.883933] Freezing remaining freezable tasks[  445.886093] Freezing remaining freezable tasks completed (elapsed 0.001 seconds)[  445.887068] printk: Suspending console(s) (use no_console_suspend to debug)[  445.921395] NVRM: GPU 0000:01:00.0: PreserveVideoMemoryAllocations module parameter is set. System Power Management attempted without driver procfs suspend interface. Please refer to the 'Configuring Power Management Support' section in the driver README.[  445.921400] nvidia 0000:01:00.0: PM: pci_pm_suspend(): nv_pmops_suspend+0x0/0x20 [nvidia] returns -5[  445.921670] nvidia 0000:01:00.0: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x170 returns -5[  445.921675] nvidia 0000:01:00.0: PM: failed to suspend async: error -5[  445.967494] sd 4:0:0:0: [sda] Synchronizing SCSI cache[  446.007524] sd 5:0:0:0: [sdb] Synchronizing SCSI cache[  446.136915] PM: Some devices failed to suspend, or early wake event detected[  446.150900] pcieport 0000:00:1c.0: Enabling MPC IRBNCE[  446.150905] pcieport 0000:00:1c.0: Intel PCH root port ACS workaround enabled[  446.225597] OOM killer enabled.[  446.226420] Restarting tasks ... done.[  446.232737] random: crng reseeded on system resumption[  446.323155] PM: suspend exit[  446.403551] Generic FE-GE Realtek PHY r8169-0-500:00: attached PHY driver (mii_bus:phy_addr=r8169-0-500:00, irq=MAC)[  446.613623] r8169 0000:05:00.0 enp5s0: Link is Down[  449.407022] r8169 0000:05:00.0 enp5s0: Link is Up - 1Gbps/Full - flow control rx/tx[  449.407049] IPv6: ADDRCONF(NETDEV_CHANGE): enp5s0: link becomes ready