Acordar imediatamente após suspender

Question

Meu sistema Debian 9 é ativado em 2-5 segundos depois que entra no modo de suspensão (suspender para a RAM) manualmente ou automaticamente. O problema sempre ocorre, não importa como o modo de suspensão é invocado: pelo fechamento da tampa, pelo botão liga / desliga ou pelo terminal. Qual poderia ser o problema?

Aqui está a informação do sistema:

$ sudo dmidecode | grep -A3 '^System Information'
System Information
    Manufacturer: LENOVO
    Product Name: 20ET004LGE
    Version: ThinkPad E460
$ uname -a
Linux 4.9.0-3-amd64 #1 SMP Debian 4.9.30-2+deb9u5 (2017-09-19) x86_64 GNU/Linux

Para verificar quais dispositivos podem causar um problema, verifiquei /proc/acpi/wakeup e, em seguida, desativei cada dispositivo temporariamente, emitindo echo DeviceName > /proc/acpi/wakeup , mas o problema ainda persiste. Aqui está antes de eu mudar:

$ cat /proc/acpi/wakeup 
Device  S-state   Status   Sysfs node
LID   S4    *enabled   platform:PNP0C0D:00
SLPB      S3    *enabled   platform:PNP0C0E:00
IGBE      S4    *enabled   pci:0000:00:1f.6
PXSX      S4    *disabled
PXSX      S4    *disabled  pci:0000:01:00.0
PXSX      S4    *disabled  pci:0000:02:00.0
        *disabled  platform:rtsx_pci_sdmmc.0
        *disabled  platform:rtsx_pci_ms.0
XHCI      S3    *enabled   pci:0000:00:14.0

$ lspci
    00:00.0 Host bridge: Intel Corporation Skylake Host Bridge/DRAM Registers (rev 08)
    00:02.0 VGA compatible controller: Intel Corporation HD Graphics 520 (rev 07)
    00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
    00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
    00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
    00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
    00:1c.0 PCI bridge: Intel Corporation Device 9d12 (rev f1)
    00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1)
    00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
    00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
    00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
    00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
    00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection I219-V (rev 21)
    01:00.0 Network controller: Intel Corporation Intel Dual Band Wireless-AC 3165 Plus Bluetooth (rev 99)
    02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader (rev 01)

E finalmente aqui está a parte relevante do dmesg, depois que eu coloquei a máquina no modo sleep e ela acorda (sem qualquer modificação no /proc/acpi/wakeup ):

$ sudo dmesg
[ 2591.034943] wlp1s0: deauthenticating from a4:2b:b0:ab:e2:99 by local choice (Reason: 3=DEAUTH_LEAVING)
[ 2591.044024] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready
[ 2593.048689] PM: Syncing filesystems ... done.
[ 2593.071217] PM: Preparing system for sleep (mem)
[ 2593.071490] (NULL device *): firmware: direct-loading firmware i915/skl_dmc_ver1_26.bin
[ 2593.071864] (NULL device *): firmware: direct-loading firmware iwlwifi-7265D-22.ucode
[ 2593.071880] Freezing user space processes ... (elapsed 0.002 seconds) done.
[ 2593.074134] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[ 2593.075457] PM: Suspending system (mem)
[ 2593.075519] Suspending console(s) (use no_console_suspend to debug)
[ 2593.075955] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 2593.077328] sd 0:0:0:0: [sda] Stopping disk
[ 2593.264951] ACPI : EC: event blocked
[ 2593.313967] PM: suspend of devices complete after 238.174 msecs
[ 2593.336883] PM: late suspend of devices complete after 22.910 msecs
[ 2593.337306] ACPI : EC: interrupt blocked
[ 2593.338237] xhci_hcd 0000:00:14.0: System wakeup enabled by ACPI
[ 2593.378029] PM: noirq suspend of devices complete after 41.142 msecs
[ 2593.378652] ACPI: Preparing to enter system sleep state S3
[ 2593.399563] ACPI : EC: EC stopped
[ 2593.399564] PM: Saving platform NVS memory
[ 2593.399570] Disabling non-boot CPUs ...
[ 2593.400953] smpboot: CPU 1 is now offline
[ 2593.403402] smpboot: CPU 2 is now offline
[ 2593.405121] smpboot: CPU 3 is now offline
[ 2593.408016] ACPI: Low-level resume complete
[ 2593.408131] ACPI : EC: EC started
[ 2593.408131] PM: Restoring platform NVS memory
[ 2593.408865] Suspended for 3.452 seconds
[ 2593.410052] Enabling non-boot CPUs ...
[ 2593.410111] x86: Booting SMP configuration:
[ 2593.410111] smpboot: Booting Node 0 Processor 1 APIC 0x2
[ 2593.413738]  cache: parent cpu1 should not be sleeping
[ 2593.418428] CPU1 is up
[ 2593.418467] smpboot: Booting Node 0 Processor 2 APIC 0x1
[ 2593.421003]  cache: parent cpu2 should not be sleeping
[ 2593.425788] CPU2 is up
[ 2593.425826] smpboot: Booting Node 0 Processor 3 APIC 0x3
[ 2593.428373]  cache: parent cpu3 should not be sleeping
[ 2593.433092] CPU3 is up
[ 2593.436236] ACPI: Waking up from system sleep state S3
[ 2593.480811] ACPI : EC: interrupt unblocked
[ 2593.536245] xhci_hcd 0000:00:14.0: System wakeup disabled by ACPI
[ 2593.536310] PM: noirq resume of devices complete after 55.607 msecs
[ 2593.541114] PM: early resume of devices complete after 4.771 msecs
[ 2593.541223] ACPI : EC: event unblocked
[ 2593.541548] iwlwifi 0000:01:00.0: RF_KILL bit toggled to enable radio.
[ 2593.542111] sd 0:0:0:0: [sda] Starting disk
[ 2593.542645] rtc_cmos 00:02: System wakeup disabled by ACPI
[ 2593.548069] [drm] GuC firmware load skipped
[ 2593.768567] usb 1-7: reset high-speed USB device number 2 using xhci_hcd
[ 2593.856890] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 2593.857497] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[ 2593.857500] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 2593.857545] ata1.00: ACPI cmd ef/10:09:00:00:00:a0 (SET FEATURES) succeeded
[ 2593.857767] ata1.00: supports DRM functions and may not be fully accessible
[ 2593.859546] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[ 2593.859548] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 2593.859591] ata1.00: ACPI cmd ef/10:09:00:00:00:a0 (SET FEATURES) succeeded
[ 2593.859806] ata1.00: supports DRM functions and may not be fully accessible
[ 2593.860711] ata1.00: configured for UDMA/133
[ 2594.130430] PM: resume of devices complete after 589.312 msecs
[ 2594.130711] PM: Finishing wakeup.
[ 2594.130712] Restarting tasks ... 
[ 2594.132323] [drm] RC6 on
[ 2594.133646] done.
[ 2594.754297] e1000e: enp0s31f6 NIC Link is Down
[ 2594.756068] IPv6: ADDRCONF(NETDEV_UP): enp0s31f6: link is not ready
[ 2594.969138] IPv6: ADDRCONF(NETDEV_UP): enp0s31f6: link is not ready
[ 2594.972566] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready
[ 2594.974923] iwlwifi 0000:01:00.0: L1 Enabled - LTR Enabled
[ 2594.975229] iwlwifi 0000:01:00.0: L1 Enabled - LTR Enabled
[ 2595.043353] iwlwifi 0000:01:00.0: L1 Enabled - LTR Enabled
[ 2595.043657] iwlwifi 0000:01:00.0: L1 Enabled - LTR Enabled
[ 2595.064475] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready
[ 2595.074769] iwlwifi 0000:01:00.0: L1 Enabled - LTR Enabled
[ 2595.075066] iwlwifi 0000:01:00.0: L1 Enabled - LTR Enabled
[ 2595.140447] iwlwifi 0000:01:00.0: L1 Enabled - LTR Enabled
[ 2595.140753] iwlwifi 0000:01:00.0: L1 Enabled - LTR Enabled
[ 2595.156361] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready
[ 2595.237719] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready
[ 2598.905323] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready
[ 2598.986638] wlp1s0: authenticate with a4:2b:b0:ab:e2:99
[ 2598.990338] wlp1s0: send auth to a4:2b:b0:ab:e2:99 (try 1/3)
[ 2598.992121] wlp1s0: authenticated
[ 2598.996133] wlp1s0: associate with a4:2b:b0:ab:e2:99 (try 1/3)
[ 2598.999926] wlp1s0: RX AssocResp from a4:2b:b0:ab:e2:99 (capab=0x431 status=0 aid=1)
[ 2599.003864] wlp1s0: associated
[ 2599.003986] IPv6: ADDRCONF(NETDEV_CHANGE): wlp1s0: link becomes ready

    

Answer 1

Eu não sei se você já resolveu esse problema, mas eu tive a mesma coisa acontecendo no Debian buster / sid em um ThinkPad T460. A saída do meu dmesg não era idêntica à sua, mas importante, ela tinha o mesmo

ACPI: EC: event blocked

linha

. Por este tópico no AskUbuntu , eu desabilitei o XHCI como um gatilho de ativação em /proc/acpi/wakeup :

$ grep enabled /proc/acpi/wakeup | cut -f 1
LID
SLPB
XHCI
$ sudo su
# echo XHCI > /proc/acpi/wakeup

e isso resolveu para mim. Estranhamente, isso só deveria importar se você tivesse dispositivos USB conectados à máquina, mas certamente não o fiz.

EDIT: Não importa, eu esqueci a parte em que você tentou desabilitar todas as linhas em /proc/acpi/wakeup .

    

Answer 2

Problema resolvido. Foi de alguma forma o teclado. Uma das minhas teclas F foi quebrada e eu decidi testar se esta tecla estava constantemente enviando informações. Então eu testei as entradas do teclado no terminal - nenhuma entrada foi mostrada quando eu não toquei no teclado. Embora fosse esse o caso, quando substituí o teclado por um novo, eu poderia colocar o PC no modo de suspensão. Pode ser algo relacionado ao Thinkpad BIOS, eu acho, porque não importa o que eu tentei no sistema operacional, eu não conseguia ver nenhuma entrada de teclado que poderia acordá-lo do sono.