Suspender não está funcionando - ajuda necessária para depurar

Question

Desde os últimos dias, sempre que tento suspender meu sistema, meu laptop retoma imediatamente a suspensão. Não tenho certeza qual é o erro exato.

Eu também notei que desde que esse problema começou, não houve mensagens registradas em /var/log/pm-suspend.log

Além disso, não consigo decifrar o syslog e descobrir qual é o problema. Eu copiei as partes relevantes do meu syslog abaixo (pelo menos o que eu achei relevante. Se houver algo mais que eu deveria adicionar ao syslog dump, ou qualquer outro arquivo de log que eu precise adicionar ao post, por favor deixe eu sei).

Dec 19 19:43:42 rocket systemd[1]: Starting Suspend...
Dec 19 19:43:42 rocket systemd-sleep[14238]: Failed to connect to non-global ctrl_ifname: (nil)  error: No such file or directory
Dec 19 19:43:42 rocket systemd-sleep[14245]: /lib/systemd/system-sleep/wpasupplicant failed with error code 255.
Dec 19 19:43:42 rocket systemd-sleep[14238]: Suspending system...
Dec 19 19:43:42 rocket kernel: [97753.657438] PM: suspend entry (deep)
Dec 19 19:43:49 rocket kernel: [97753.657440] PM: Syncing filesystems ... done.
Dec 19 19:43:49 rocket kernel: [97753.677370] Freezing user space processes ... (elapsed 0.002 seconds) done.
Dec 19 19:43:49 rocket kernel: [97753.679487] OOM killer disabled.
Dec 19 19:43:49 rocket kernel: [97753.679487] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
Dec 19 19:43:49 rocket kernel: [97753.681041] Suspending console(s) (use no_console_suspend to debug)
Dec 19 19:43:49 rocket kernel: [97753.694559] e1000e: EEE TX LPI TIMER: 00000011
Dec 19 19:43:49 rocket kernel: [97754.015324] ACPI: Preparing to enter system sleep state S3
Dec 19 19:43:49 rocket kernel: [97754.058898] ACPI: EC: event blocked
Dec 19 19:43:49 rocket kernel: [97754.058899] ACPI: EC: EC stopped
Dec 19 19:43:49 rocket kernel: [97754.058901] PM: Saving platform NVS memory
Dec 19 19:43:49 rocket kernel: [97754.059053] Disabling non-boot CPUs ...
Dec 19 19:43:49 rocket kernel: [97754.075214] irq_migrate_all_off_this_cpu: 1 callbacks suppressed
Dec 19 19:43:49 rocket kernel: [97754.075217] IRQ 127: no longer affine to CPU1
Dec 19 19:43:49 rocket kernel: [97754.076265] smpboot: CPU 1 is now offline
Dec 19 19:43:49 rocket kernel: [97754.099125] IRQ 122: no longer affine to CPU2
Dec 19 19:43:49 rocket kernel: [97754.099135] IRQ 123: no longer affine to CPU2
Dec 19 19:43:49 rocket kernel: [97754.099152] IRQ 129: no longer affine to CPU2
Dec 19 19:43:49 rocket kernel: [97754.099161] IRQ 133: no longer affine to CPU2
Dec 19 19:43:49 rocket kernel: [97754.101239] smpboot: CPU 2 is now offline
Dec 19 19:43:49 rocket kernel: [97754.127042] IRQ 1: no longer affine to CPU3
Dec 19 19:43:49 rocket kernel: [97754.127053] IRQ 8: no longer affine to CPU3
Dec 19 19:43:49 rocket kernel: [97754.127061] IRQ 9: no longer affine to CPU3
Dec 19 19:43:49 rocket kernel: [97754.127070] IRQ 12: no longer affine to CPU3
Dec 19 19:43:49 rocket kernel: [97754.127092] IRQ 124: no longer affine to CPU3
Dec 19 19:43:49 rocket kernel: [97754.128146] smpboot: CPU 3 is now offline
Dec 19 19:43:49 rocket kernel: [97754.134445] ACPI: Low-level resume complete
Dec 19 19:43:49 rocket kernel: [97754.134553] ACPI: EC: EC started
Dec 19 19:43:49 rocket kernel: [97754.134554] PM: Restoring platform NVS memory
Dec 19 19:43:49 rocket kernel: [97754.136858] Enabling non-boot CPUs ...
Dec 19 19:43:49 rocket kernel: [97754.136960] x86: Booting SMP configuration:
Dec 19 19:43:49 rocket kernel: [97754.136961] smpboot: Booting Node 0 Processor 1 APIC 0x2
Dec 19 19:43:49 rocket kernel: [97754.138995]  cache: parent cpu1 should not be sleeping
Dec 19 19:43:49 rocket kernel: [97754.139198] CPU1 is up
Dec 19 19:43:49 rocket kernel: [97754.139220] smpboot: Booting Node 0 Processor 2 APIC 0x1
Dec 19 19:43:49 rocket kernel: [97754.140866]  cache: parent cpu2 should not be sleeping
Dec 19 19:43:49 rocket kernel: [97754.141062] CPU2 is up
Dec 19 19:43:49 rocket kernel: [97754.141089] smpboot: Booting Node 0 Processor 3 APIC 0x3
Dec 19 19:43:49 rocket kernel: [97754.142607]  cache: parent cpu3 should not be sleeping
Dec 19 19:43:49 rocket kernel: [97754.142810] CPU3 is up
Dec 19 19:43:49 rocket kernel: [97754.145878] ACPI: Waking up from system sleep state S3
Dec 19 19:43:49 rocket kernel: [97754.840298] ACPI: EC: event unblocked
Dec 19 19:43:49 rocket kernel: [97755.373360] ata1: SATA link down (SStatus 4 SControl 300)
Dec 19 19:43:49 rocket kernel: [97755.373390] ata2: SATA link down (SStatus 0 SControl 300)
Dec 19 19:43:49 rocket kernel: [97755.394993] usb 1-2: reset high-speed USB device number 2 using xhci_hcd
Dec 19 19:43:49 rocket kernel: [97755.563924] restoring control 00000000-0000-0000-0000-000000000101/10/5
Dec 19 19:43:49 rocket kernel: [97755.563928] restoring control 00000000-0000-0000-0000-000000000101/12/11
Dec 19 19:43:49 rocket kernel: [97755.670949] usb 1-4: reset high-speed USB device number 37 using xhci_hcd
Dec 19 19:43:49 rocket kernel: [97756.115174] usb 1-4.1: reset full-speed USB device number 38 using xhci_hcd
Dec 19 19:43:49 rocket kernel: [97756.295223] usb 1-4.2: reset full-speed USB device number 39 using xhci_hcd
Dec 19 19:43:49 rocket kernel: [97756.471198] OOM killer enabled.
Dec 19 19:43:49 rocket systemd[1]: Time has been changed
Dec 19 19:43:49 rocket systemd[3214]: Time has been changed
Dec 19 19:43:49 rocket kernel: [97756.471201] Restarting tasks ... 
Dec 19 19:43:49 rocket kernel: [97756.477635] [drm] RC6 on
Dec 19 19:43:49 rocket kernel: [97756.479382] done.
Dec 19 19:43:49 rocket kernel: [97756.509711] acpi PNP0401:00: Already enumerated
Dec 19 19:43:49 rocket compiz[3686]: WARN  2017-12-19 19:43:49 unity.glib.dbus.proxy GLibDBusProxy.cpp:487 Calling method "EmitEvent" on object path: "/com/ubuntu/Upstart" failed: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name com.canonical.Unity.Test.Upstart was not provided by any .service files
Dec 19 19:43:49 rocket systemd[1]: Reloading Laptop Mode Tools.
Dec 19 19:43:49 rocket kernel: [97756.599394] acpi PNP0501:00: Still not present
Dec 19 19:43:49 rocket laptop_mode[14272]: Laptop mode
Dec 19 19:43:49 rocket laptop_mode[14272]: enabled, not active [unchanged]
Dec 19 19:43:49 rocket systemd-sleep[14238]: System resumed.
Dec 19 19:43:49 rocket kernel: [97756.656991] PM: suspend exit
Dec 19 19:43:49 rocket systemd-sleep[14238]: Failed to connect to non-global ctrl_ifname: (nil)  error: No such file or directory
Dec 19 19:43:49 rocket systemd-sleep[14317]: /lib/systemd/system-sleep/wpasupplicant failed with error code 255.
Dec 19 19:43:49 rocket systemd[1]: Started Suspend.
Dec 19 19:43:49 rocket systemd[1]: sleep.target: Unit not needed anymore. Stopping.
Dec 19 19:43:49 rocket systemd[1]: Stopped target Sleep.
Dec 19 19:43:49 rocket systemd[1]: Reached target Suspend.
Dec 19 19:43:49 rocket systemd[1]: suspend.target: Unit is bound to inactive unit systemd-suspend.service. Stopping, too.
Dec 19 19:43:49 rocket systemd[1]: Stopped target Suspend.
Dec 19 19:43:49 rocket systemd[1]: Started Run anacron jobs at resume.

Como corrijo esse problema / depuro ainda mais esse problema?

Estou usando o 17.04 em um Dell Latitude E7470.

PS: por favor, deixe um comentário se houver mais alguma informação que eu precise adicionar a esta pergunta.

    

Answer 1

Obrigado Valentas para o link linuxquestions em seu comentário

Eu segui o tópico no link acima e entendi que o problema estava relacionado a dispositivos USB 3.0 conectados ao meu laptop.

o seguinte comando corrigiu o problema para mim. Precisa ser executado como root

echo XHC > /proc/acpi/wakeup

O comando parece que você está escrevendo em um arquivo, mas o efeito que ele tem é impedir que os dispositivos USB ativem o sistema.

Se você não tiver certeza de que é o USB que está ativando o sistema, verifique o seguinte.

grep enabled /proc/acpi/wakeup | cut -f 1

Se uma das linhas de saída for XHC , isso significa que um dispositivo USB pode ser o problema. Para testar se esse é o caso, tente suspender com o dispositivo USB desconectado. Se sua máquina não acordar automaticamente da suspensão, provavelmente é uma conexão USB.