Public bug reported:
Using `systemctl suspend` or suspending through the power menu takes 30
seconds for the system to fully suspend.
Expected:
The system suspends in under 2 seconds (e.g. check Arch Linux)
Actual:
The system takes 30 seconds to suspend (31.44 seconds using a stopwatch)
Description: Ubuntu 20.04.1 LTS
Release: 20.04
Codename: focal
DMESG:
[ 8521.093270] PM: suspend entry (deep)
[ 8521.104938] Filesystems sync: 0.011 seconds
[ 8521.182123] Freezing user space processes ... (elapsed 0.004 seconds) done.
[ 8521.187004] OOM killer disabled.
[ 8521.187005] Freezing remaining freezable tasks ... (elapsed 0.001 seconds)
done.
[ 8521.188754] printk: Suspending console(s) (use no_console_suspend to debug)
[ 8521.219072] sd 1:0:0:0: [sda] Synchronizing SCSI cache
[ 8521.219621] sd 1:0:0:0: [sda] Stopping disk
[ 8521.958776] ACPI: Preparing to enter system sleep state S3
[ 8521.960793] PM: Saving platform NVS memory
[ 8521.961025] Disabling non-boot CPUs ...
[ 8521.961558] IRQ 26: no longer affine to CPU1
[ 8521.962593] smpboot: CPU 1 is now offline
[ 8521.964649] IRQ 18: no longer affine to CPU2
[ 8521.965669] smpboot: CPU 2 is now offline
[ 8521.967970] IRQ 27: no longer affine to CPU3
[ 8521.968991] smpboot: CPU 3 is now offline
[ 8521.970958] ACPI: Low-level resume complete
[ 8521.970958] PM: Restoring platform NVS memory
[ 8521.976827] Enabling non-boot CPUs ...
[ 8521.976893] x86: Booting SMP configuration:
[ 8521.976894] smpboot: Booting Node 0 Processor 1 APIC 0x2
[ 8521.983510] CPU1 is up
[ 8521.983545] smpboot: Booting Node 0 Processor 2 APIC 0x3
[ 8521.990199] CPU2 is up
[ 8521.990234] smpboot: Booting Node 0 Processor 3 APIC 0x1
[ 8521.996937] CPU3 is up
[ 8521.999566] ACPI: Waking up from system sleep state S3
[ 8522.039068] usb usb3: root hub lost power or was reset
[ 8522.039085] usb usb4: root hub lost power or was reset
[ 8522.039093] usb usb5: root hub lost power or was reset
[ 8522.039149] usb usb6: root hub lost power or was reset
[ 8522.039172] usb usb7: root hub lost power or was reset
[ 8522.039207] usb usb8: root hub lost power or was reset
[ 8522.046933] [drm] enabling PCIE gen 2 link speeds, disable with
radeon.pcie_gen2=0
[ 8522.053105] [drm] PCIE GART of 1024M enabled (table at 0x0000000000162000).
[ 8522.053201] radeon 0000:01:00.0: WB enabled
[ 8522.053204] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr
0x0000000040000c00 and cpu addr 0x000000002d5e699f
[ 8522.053207] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr
0x0000000040000c0c and cpu addr 0x000000006b3686a1
[ 8522.053999] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr
0x0000000000072118 and cpu addr 0x00000000556b4497
[ 8522.054407] sd 1:0:0:0: [sda] Starting disk
[ 8522.070310] [drm] ring test on 0 succeeded in 2 usecs
[ 8522.070320] [drm] ring test on 3 succeeded in 6 usecs
[ 8522.139382] mt7601u 1-5:1.0: Error: MCU response pre-completed!
[ 8522.167009] mt7601u 1-5:1.0: EEPROM ver:0c fae:00
[ 8522.246061] [drm] ring test on 5 succeeded in 2 usecs
[ 8522.246069] [drm] UVD initialized successfully.
[ 8522.246206] [drm] ib test on ring 0 succeeded in 0 usecs
[ 8522.246333] [drm] ib test on ring 3 succeeded in 0 usecs
[ 8522.372750] ata1: SATA link down (SStatus 0 SControl 300)
[ 8522.420793] ata4: SATA link down (SStatus 0 SControl 300)
[ 8522.420965] ata5: SATA link down (SStatus 0 SControl 300)
[ 8522.420984] ata6: SATA link down (SStatus 0 SControl 300)
[ 8522.421015] ata3: SATA link down (SStatus 0 SControl 300)
[ 8522.534422] usb 4-2: reset low-speed USB device number 3 using uhci_hcd
[ 8522.586417] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 8522.589674] ata2.00: configured for UDMA/133
[ 8522.589762] ata2.00: Enabling discard_zeroes_data
[ 8522.910492] [drm] ib test on ring 5 succeeded
[ 8523.114411] usb 4-1: reset low-speed USB device number 2 using uhci_hcd
[ 8523.467722] OOM killer enabled.
[ 8523.467723] Restarting tasks ...
[ 8523.469565] pci 0000:00:1e.0: PCI bridge to [bus 03]
[ 8523.469623] pci 0000:00:1e.0: PCI bridge to [bus 03]
[ 8523.469671] pci 0000:00:1e.0: PCI bridge to [bus 03]
[ 8523.469723] pci 0000:00:1e.0: PCI bridge to [bus 03]
[ 8523.469769] pci 0000:00:1e.0: PCI bridge to [bus 03]
[ 8523.469816] pci 0000:00:1e.0: PCI bridge to [bus 03]
[ 8523.486043] rfkill: input handler enabled
[ 8523.494520] done.
[ 8523.496289] PM: suspend exit
[ 8523.511552] rfkill: input handler disabled
[ 8541.280829] check: Corrupted low memory at 00000000de236a5f (c6e8 phys) =
400000000000
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1898421
Title:
Suspend - takes 30 seconds to fully suspend
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