Ontem notei que quando fui reiniciar meu laptop, não o faria. O computador é um novíssimo Dell XPS 13 9350. Depois de observar algumas coisas, percebi que isso só aconteceria (não desligando) depois que eu fizesse meu computador entrar no modo de suspensão, seja fechando a tampa ou suspendendo-a manualmente. Eu fiz um dmesg e descobri que havia alguns erros da ACPI na inicialização e depois que a suspensão ou ativação foi acionada.
Aqui está uma mensagem na inicialização, que parece repetir algumas vezes.
[ 0.963116] ACPI Error: [\_SB_.PCI0.LPCB.H_EC.ECAV] Namespace lookup failure, AE_NOT_FOUND (20150930/psargs-359)
[ 0.963121] ACPI Error: Method parse/execution failed [\_TZ.FNCL] (Node ffff88027611c4d8), AE_NOT_FOUND (20150930/psparse-542)
[ 0.963126] ACPI Error: Method parse/execution failed [\_TZ.FN00._ON] (Node ffff8802760ebed8), AE_NOT_FOUND (20150930/psparse-542)
[ 0.963132] acpi PNP0C0B:00: Failed to change power state to D0
[ 0.971338] ACPI Error: [\_SB_.PCI0.LPCB.H_EC.ECAV] Namespace lookup failure, AE_NOT_FOUND (20150930/psargs-359)
[ 0.971344] ACPI Error: Method parse/execution failed [\_TZ.FNCL] (Node ffff88027611c4d8), AE_NOT_FOUND (20150930/psparse-542)
[ 0.971353] ACPI Error: Method parse/execution failed [\_TZ.FN00._ON] (Node ffff8802760ebed8), AE_NOT_FOUND (20150930/psparse-542)
[ 0.971371] acpi PNP0C0B:00: Setting initial power state
[ 0.983179] acpi PNP0C0B:00: Cannot transition from (unknown) to D3hot
Aqui está a mensagem durante os procedimentos de suspensão ou ativação.
[ 61.650365] ACPI: Waking up from system sleep state S3
[ 62.980908] acpi LNXPOWER:1b: Turning OFF
[ 62.988316] ACPI Error: [\_SB_.PCI0.LPCB.H_EC.ECAV] Namespace lookup failure, AE_NOT_FOUND (20150930/psargs-359)
[ 62.988319] ACPI Error: Method parse/execution failed [\_TZ.FNCL] (Node ffff88027611c4d8), AE_NOT_FOUND (20150930/psparse-542)
[ 62.988322] ACPI Error: Method parse/execution failed [\_TZ.FN04._OFF] (Node ffff88027611c410), AE_NOT_FOUND (20150930/psparse-542)
[ 62.988334] acpi LNXPOWER:1a: Turning OFF
[ 62.996318] ACPI Error: [\_SB_.PCI0.LPCB.H_EC.ECAV] Namespace lookup failure, AE_NOT_FOUND (20150930/psargs-359)
[ 62.996320] ACPI Error: Method parse/execution failed [\_TZ.FNCL] (Node ffff88027611c4d8), AE_NOT_FOUND (20150930/psparse-542)
[ 62.996322] ACPI Error: Method parse/execution failed [\_TZ.FN03._OFF] (Node ffff88027611c2d0), AE_NOT_FOUND (20150930/psparse-542)
[ 62.996333] acpi LNXPOWER:19: Turning OFF
[ 63.004325] ACPI Error: [\_SB_.PCI0.LPCB.H_EC.ECAV] Namespace lookup failure, AE_NOT_FOUND (20150930/psargs-359)
[ 63.004327] ACPI Error: Method parse/execution failed [\_TZ.FNCL] (Node ffff88027611c4d8), AE_NOT_FOUND (20150930/psparse-542)
[ 63.004329] ACPI Error: Method parse/execution failed [\_TZ.FN02._OFF] (Node ffff88027611c190), AE_NOT_FOUND (20150930/psparse-542)
[ 63.004340] acpi LNXPOWER:18: Turning OFF
[ 63.012333] ACPI Error: [\_SB_.PCI0.LPCB.H_EC.ECAV] Namespace lookup failure, AE_NOT_FOUND (20150930/psargs-359)
[ 63.012335] ACPI Error: Method parse/execution failed [\_TZ.FNCL] (Node ffff88027611c4d8), AE_NOT_FOUND (20150930/psparse-542)
[ 63.012337] ACPI Error: Method parse/execution failed [\_TZ.FN01._OFF] (Node ffff88027611c050), AE_NOT_FOUND (20150930/psparse-542)
[ 63.012348] acpi LNXPOWER:17: Turning OFF
[ 63.020337] ACPI Error: [\_SB_.PCI0.LPCB.H_EC.ECAV] Namespace lookup failure, AE_NOT_FOUND (20150930/psargs-359)
[ 63.020339] ACPI Error: Method parse/execution failed [\_TZ.FNCL] (Node ffff88027611c4d8), AE_NOT_FOUND (20150930/psparse-542)
[ 63.020341] ACPI Error: Method parse/execution failed [\_TZ.FN00._OFF] (Node ffff8802760ebf00), AE_NOT_FOUND (20150930/psparse-542)
[ 63.036963] xhci_hcd 0000:00:14.0: System wakeup disabled by ACPI
[ 63.037059] PM: noirq resume of devices complete after 16.295 msecs
[ 63.045997] PM: early resume of devices complete after 8.905 msecs
[ 63.051186] rtc_cmos 00:01: System wakeup disabled by ACPI
[ 63.086972] xhci_hcd 0000:00:14.0: port 3 resume PLC timeout
[ 63.105472] xhci_hcd 0000:00:14.0: port 2 resume PLC timeout
[ 63.123459] xhci_hcd 0000:00:14.0: port 0 resume PLC timeout
[ 63.405106] usb 1-3: reset full-speed USB device number 3 using xhci_hcd
[ 63.757318] usb 1-4: reset full-speed USB device number 4 using xhci_hcd
[ 63.942128] usb 1-4: ep 0x2 - rounding interval to 64 microframes, ep desc says 80 microframes
[ 64.109488] usb 1-5: reset high-speed USB device number 5 using xhci_hcd
[ 64.231076] mmc0: cannot verify signal voltage switch
[ 64.462123] usb 1-1: reset full-speed USB device number 2 using xhci_hcd
[ 64.715595] PM: resume of devices complete after 1668.139 msecs
[ 64.716040] PM: Finishing wakeup.
Algumas das coisas que encontrei apontaram para atualizar meu BIOS, mas meu BIOS já está atualizado para a versão mais recente, que atualizei na semana passada. qualquer ajuda seria muito bem vinda. Eu posso fornecer mais informações, se necessário.