networking disabled and unable to reenable after resume from suspend

[Eric Riese]

When I resume from suspend my networking is disabled (not just wifi). Reenabling it via NetworkManager does not work. Both wlan0 and eth0 are no longer visible in the output of sudo ifconfig, only lo.

$ sudo lshw -C network
  *-network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: eth0
       version: 03
       serial: e8:9a:8f:19:8a:0a
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8168d-2.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:43 ioport:3000(size=256) memory:d0004000-d0004fff memory:d0000000-d0003fff memory:d0020000-d003ffff
  *-network
       description: Wireless interface
       product: RTL8188CE 802.11b/g/n WiFi Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: wlan0
       version: 01
       serial: 68:a3:c4:ed:2b:ec
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8192ce driverversion=3.11.0-13-generic firmware=N/A ip=192.168.1.4 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       resources: irq:17 ioport:2000(size=256) memory:d0100000-d0103fff

I added the line
SUSPEND_MODULES="wl"
to /etc/pm/config.d/config and it seems fine now.

This bug is a regression. I did not experience it in 13.04 or previous versions, just 13.10

[nh2 (nh2)]

Same problem, and I can confirm that it is a 13.10 regression.

It happens around every 10th resume, not on every resume.

My hardware: Thinkpad X220 with:

  *-network
       description: Ethernet interface
       product: 82579LM Gigabit Network Connection
       vendor: Intel Corporation
       physical id: 19
       bus info: pci@0000:00:19.0
       logical name: eth0
       version: 04
       serial: f0:de:f1:5c:37:b2
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi cap_list ethernet physical
       configuration: broadcast=yes driver=e1000e latency=0 multicast=yes
       resources: irq:20 memory:f2500000-f251ffff memory:f252b000-f252bfff ioport:5080(size=32)
  *-network
       description: Wireless interface
       product: Centrino Advanced-N 6205 [Taylor Peak]
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlan0
       version: 34
       serial: a0:88:b4:29:79:cc
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=3.11.0-15-generic firmware=18.168.6.1 ip=192.168.1.96 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
       resources: irq:47 memory:f2400000-f2401fff

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[nh2 (nh2)]

Workaround:

sudo restart network-manager

[penalvch (penalvch)]

Eric Riese, thank you for reporting this bug to Ubuntu. Saucy reached EOL on July 17, 2014.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases

Is this an issue in a supported release? If so, could you please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1254936

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]