Comment 0 for bug 1556357

Hi,

I'm constantly having issues where my WiFi connection doesn't re-establish after resuming from suspend. I think it may be a race where the interface isn't ready yet and systemd-sleep calls /lib/systemd/system-sleep/wpasupplicant (which is a wrapper to wpa_cli).

I normally restart NetworkManager but then found that calling 'wpa_cli resume' works also.

Here's the logs:

| Mar 12 13:53:06 ragnar.local kernel: psmouse serio1: synaptics: quirked min/max coordinates: x [1024..5112], y [2024..4832]
| Mar 12 13:53:06 ragnar.local kernel: PM: resume of devices complete after 562.709 msecs
| Mar 12 13:53:06 ragnar.local kernel: PM: Finishing wakeup.
| Mar 12 13:53:06 ragnar.local systemd[1]: Time has been changed
| Mar 12 13:53:06 ragnar.local systemd[1066]: Time has been changed
| Mar 12 13:53:06 ragnar.local kernel: Restarting tasks ... done.
| Mar 12 13:53:06 ragnar.local systemd-sleep[29174]: System resumed.
| Mar 12 13:53:06 ragnar.local systemd-sleep[29174]: Failed to connect to non-global ctrl_ifname: (nil) error: No such file or directory
| Mar 12 13:53:06 ragnar.local systemd-sleep[29227]: /lib/systemd/system-sleep/wpasupplicant failed with error code 255.
| Mar 12 13:53:06 ragnar.local systemd[1]: Started Suspend.
| Mar 12 13:53:06 ragnar.local systemd[1]: sleep.target: Unit not needed anymore. Stopping.
| Mar 12 13:53:06 ragnar.local systemd[1]: Stopped target Sleep.
| Mar 12 13:53:06 ragnar.local systemd[1]: Reached target Suspend.
| Mar 12 13:53:06 ragnar.local systemd[1]: suspend.target: Unit is bound to inactive unit systemd-suspend.service. Stopping, too.
| Mar 12 13:53:06 ragnar.local NetworkManager[23292]: <info> wake requested (sleeping: yes enabled: yes)
| Mar 12 13:53:06 ragnar.local systemd[1]: Stopped target Suspend.
| Mar 12 13:53:06 ragnar.local NetworkManager[23292]: <info> waking up...
| Mar 12 13:53:06 ragnar.local systemd-logind[662]: Operation 'sleep' finished.
| Mar 12 13:53:06 ragnar.local kernel: IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
| Mar 12 13:53:06 ragnar.local kernel: iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
| Mar 12 13:53:06 ragnar.local NetworkManager[23292]: <info> (wlp3s0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
| Mar 12 13:53:06 ragnar.local kernel: iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
| Mar 12 13:53:07 ragnar.local kernel: iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
| Mar 12 13:53:07 ragnar.local kernel: iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
| Mar 12 13:53:07 ragnar.local NetworkManager[23292]: <info> NetworkManager state is now DISCONNECTED
| Mar 12 13:53:07 ragnar.local kernel: IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
| Mar 12 13:53:07 ragnar.local wpa_supplicant[23157]: dbus: wpa_dbus_get_object_properties: failed to get object properties: (none) none
| Mar 12 13:53:07 ragnar.local wpa_supplicant[23157]: dbus: Failed to construct signal
| Mar 12 13:53:07 ragnar.local wpa_supplicant[23157]: Could not read interface p2p-dev-wlp3s0 flags: No such device
| Mar 12 13:53:07 ragnar.local NetworkManager[23292]: <info> (wlp3s0): supplicant interface state: starting -> ready
| Mar 12 13:53:07 ragnar.local NetworkManager[23292]: <info> (wlp3s0): device state change: unavailable -> disconnected (reason 'supplicant-available') [20 30 42]
| Mar 12 13:53:07 ragnar.local NetworkManager[23292]: <info> Device 'wlp3s0' has no connection; scheduling activate_check in 0 seconds.
| Mar 12 13:53:07 ragnar.local kernel: IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready

Thanks,

Haw