Ubuntu
network-manager package

  1. Bug #40125
  2. Comment #97

Comment 97 for bug 40125

Revision history for this message
TJ (tj) wrote : Solution found in comment #43 for Feisty + ipw3945

Feisty 32-bit, 2.6.20-16-generic with ipw3945 and e100 on a Sony Vaio VGN-FE41Z.

Using just the ipw3945 wireless connection on a WPA2 network.

After resume from suspend NetworkManager reported no network devices. Restarting NetworkManager didn't seem to solve it.

The solution was to use mlaverdiere's method dated 2006-07-05 to stop NetworkManager during suspend and start it during resume:

https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/40125/comments/43

These methods all failed to solve the issue:

1. Adding max_replies_per_connection=512 to /etc/dbus-1/system.d/NetworkManager.conf
2. Adding dbus suspend/resume scripts (with varying priorities) as per John Cooper's post
3. Disabling Wireless Networking from the nm-applet prior to suspending

Doing a suspend/resume cycle whilst running NetworkManager --no-daemon reports:

NetworkManager: <information> Activation (eth1) successful, device activated.
NetworkManager: <information> Activation (eth1) Finish handler scheduled.
NetworkManager: <information> Activation (eth1) Stage 5 of 5 (IP Configure Commit) complete.
NetworkManager: <information> wpa_supplicant(6706): cess=1
NetworkManager: <information> Going to sleep.
sendmsg(CTRL_IFACE monitor): No such file or directory
NetworkManager: <debug info> [1183921757.754011] nm_hal_device_removed (): Device removed (hal udi is '/org/freedesktop/Hal/devices/net_00_13_a9_86_51_bd').
NetworkManager: <information> Deactivating device eth2.
NetworkManager: <information> Waking up from sleep.
NetworkManager: <information> Deactivating device eth1.
NetworkManager: <WARNING> nm_device_802_11_wireless_set_essid (): error setting ESSID to '' for device eth1: Resource temporarily unavailable
NetworkManager: <WARNING> nm_device_802_11_wireless_set_wep_enc_key (): error setting key for device eth1: Resource temporarily unavailable
NetworkManager: <WARNING> nm_device_802_11_wireless_get_mode (): error getting card mode on eth1: Resource temporarily unavailable
NetworkManager: <WARNING> nm_device_802_11_wireless_set_mode (): error setting card eth1 to Infrastructure mode: Resource temporarily unavailable

** net_00_13_a9_86_51_bd is the wired interface (not in use).

Stopping and restarting NetworkManager (as daemon or not) will start the network and connect successfully if NetworkManager was running as --nodaemon during suspend.