Problema de conexão ethernet Ubuntu 14.04

Question

Acabei de atualizar de 12.04 para 14.04, e quando eu desconecto o cabo ethernet ou o suspendo, o gerenciador de rede continua tentando conectar-se de 4 a 5 vezes, com falhas, e finalmente ter sucesso. Se eu reiniciar, a conexão está ok, mas se eu desligar novamente, o problema está de volta.

Esta é a saída do dmesg:

[ 1234.523258] PM: Syncing filesystems ... done.
[ 1234.743865] PM: Preparing system for mem sleep
[ 1234.744109] Freezing user space processes ... (elapsed 0.002 seconds) done.
[ 1234.746257] Freezing remaining freezable tasks ... (elapsed 1.504 seconds) done.
[ 1236.250482] PM: Entering mem sleep
[ 1236.250514] Suspending console(s) (use no_console_suspend to debug)
[ 1236.251018] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 1236.251343] sd 0:0:0:0: [sda] Stopping disk
[ 1236.812155] PM: suspend of devices complete after 561.290 msecs
[ 1236.812530] PM: late suspend of devices complete after 0.371 msecs
[ 1236.828483] ehci-pci 0000:00:04.1: System wakeup enabled by ACPI
[ 1236.844052] ohci-pci 0000:00:04.0: System wakeup enabled by ACPI
[ 1236.860284] PM: noirq suspend of devices complete after 47.750 msecs
[ 1236.860415] ACPI: Preparing to enter system sleep state S3
[ 1236.861876] PM: Saving platform NVS memory
[ 1236.862162] Disabling non-boot CPUs ...
[ 1236.964057] smpboot: CPU 1 is now offline
[ 1236.964265] ACPI: Low-level resume complete
[ 1236.964265] PM: Restoring platform NVS memory
[ 1236.964265] Enabling non-boot CPUs ...
[ 1236.964265] x86: Booting SMP configuration:
[ 1236.964265] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 1236.863533] Initializing CPU#1
[ 1236.976181] CPU1 is up
[ 1236.977216] ACPI: Waking up from system sleep state S3
[ 1237.556134] ohci-pci 0000:00:04.0: System wakeup disabled by ACPI
[ 1237.572108] ehci-pci 0000:00:04.1: System wakeup disabled by ACPI
[ 1237.620274] PM: noirq resume of devices complete after 79.948 msecs
[ 1237.620451] PM: early resume of devices complete after 0.147 msecs
[ 1237.940033] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 1238.012503] ata2.00: configured for UDMA/100
[ 1239.452092] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 1239.456315] ata1.00: configured for UDMA/133
[ 1239.456825] sd 0:0:0:0: [sda] Starting disk
[ 1239.486112] PM: resume of devices complete after 1865.656 msecs
[ 1239.486478] PM: Finishing wakeup.
[ 1239.486481] Restarting tasks ... done.
[ 1239.503830] video LNXVIDEO:00: Restoring backlight state
[ 1239.691997] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[ 1239.692095] r8169 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[ 1239.692359] r8169 0000:03:00.0: irq 41 for MSI/MSI-X
[ 1239.735826] r8169 0000:03:00.0 eth0: RTL8168b/8111b at 0xf842a000, e0:cb:4e:2f:c4:f7, XID 18000000 IRQ 41
[ 1239.735831] r8169 0000:03:00.0 eth0: jumbo features [frames: 4080 bytes, tx checksumming: ko]
[ 1241.841344] r8169 0000:03:00.0 eth0: link down
[ 1241.841364] r8169 0000:03:00.0 eth0: link down
[ 1241.841639] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 1243.636825] r8169 0000:03:00.0 eth0: link up
[ 1243.636843] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 1244.281364] r8169 0000:03:00.0 eth0: link down
[ 1244.281395] r8169 0000:03:00.0 eth0: link down
[ 1244.281616] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 1244.561344] r8169 0000:03:00.0 eth0: link down
[ 1244.561442] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 1246.377956] r8169 0000:03:00.0 eth0: link up
[ 1246.377971] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 1251.433358] r8169 0000:03:00.0 eth0: link down
[ 1251.433411] r8169 0000:03:00.0 eth0: link down
[ 1251.433481] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 1253.072957] r8169 0000:03:00.0 eth0: link up
[ 1253.072974] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 3498.716445] r8169 0000:03:00.0 eth0: link down
[ 3501.273340] r8169 0000:03:00.0 eth0: link down
[ 3501.273452] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 3501.673354] r8169 0000:03:00.0 eth0: link down
[ 3501.673419] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 3503.203193] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 3523.370577] r8169 0000:03:00.0 eth0: link up
[ 3523.370595] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

    

Answer 1

Eu tive um problema semelhante com uma placa ethernet Realtek que não voltaria depois de retomar o sono no ubuntu 14.04, reiniciar o gerenciador de rede conserta isso para mim.

• Para tentar uma vez:

  $ sudo service network-manager restart
  

  (Recarregando o módulo r8169 também funciona)

• Para torná-lo permanente, crie um script em /etc/pm/sleep.d e torne-o executável:

  $ sudo cat > /etc/pm/sleep.d/90_restart_network_manager
  #!/bin/sh
  
  case "" in
      resume|thaw)
          service network-manager restart;;
  esac
  $ sudo chmod 755 /etc/pm/sleep.d/90_restart_network_manager
  

Para referência, o cartão é um RTL8105e :

$ dmesg | grep 'r8169.*RTL'
r8169 0000:01:00.0 eth0: RTL8105e at 0xf845c000, ...

    

Answer 2

De: link

Eu tenho um NIC realtek r8169 que o Ubuntu 14.04 não gosta do processo de suspensão / restauração.

sudo gedit /etc/pm/config.d/unload_modules

(crie-o se não existir) e depois adicione:

SUSPEND_MODULES="$SUSPEND_MODULES r8169"

Reinicialize sua máquina.

A partir da próxima inicialização, quando você suspender e voltar à sua sessão, basta selecionar a conexão que deseja ativar no miniaplicativo de rede na lista suspensa no canto superior direito.

Felicidades!

MM

BTW, lspci diz que tenho isto

04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)

no meu Dell Inspiron 7559 (série 7000) ...

    

Answer 3

Amém, lemonsqueeze. Eu criei um script de shell Bourne semelhante executável em /etc/pm/sleep.d para 14.04 somente. Isso funcionou bem em Upstart. Subsequentemente, atualizei essa máquina em particular para 16.04 (Systemd). Novo jogo de bola:

1. Crie um script de shell Bourne executável, /usr/local/bin/resume_r8169.sh:

MYNAME='basename'
echo $MYNAME Begin
modprobe -v -r r8169
modprobe -v    r8169
echo $MYNAME End

Certifique-se de que o script seja executável (chmod -x).

2. No diretório / etc / systemd / system, crie um arquivo resume_r8169.service com esta aparência:

[Unit]
Description=Work-around r8169 inability to resume service after suspend
After=suspend.target

[Service]
User=root
Type=oneshot
ExecStart=/bin/sh -c /usr/local/bin/resume_r8169.sh
TimeoutSec=0
StandardOutput=syslog

[Install]
WantedBy=suspend.target

3. Em seguida, instale o serviço no Systemd executando:

sudo systemctl enable /etc/systemd/system/resume_r8169.service