Hi. I never tested suspend/resume on my dell notebook until yesterday night. I found "no network adapter" message after each resume cycle, even between reboots (i tested 3 times). I'm on Gutsy x86_64. I agree this could be another bug, but restarting eth0 manually and restarting NM resolves the issue, it *seems* to be highly related... Is there any more information I can provide to try to hunt a little more ?

here is the start of my /var/log/syslog (just after resume) :

Sep 28 09:34:22 Kynes syslogd 1.4.1#21ubuntu3: restart.
Sep 28 09:34:41 Kynes NetworkManager: <WARN>  nm_utils_supplicant_request_with_check(): nm_device_802_11_wireless_scan: supplicant error for 'SCAN'.  Response: '$' 
Sep 28 09:34:41 Kynes NetworkManager: <WARN>  nm_device_802_11_wireless_scan(): could not trigger wireless scan on device wlan0: Transport endpoint is not connected 
Sep 28 09:35:01 Kynes NetworkManager: <WARN>  nm_utils_supplicant_request_with_check(): nm_device_802_11_wireless_scan: supplicant error for 'SCAN'.  Response: '$' 
Sep 28 09:35:01 Kynes NetworkManager: <WARN>  nm_device_802_11_wireless_scan(): could not trigger wireless scan on device wlan0: Transport endpoint is not connected 
Sep 28 09:35:21 Kynes NetworkManager: <WARN>  nm_utils_supplicant_request_with_check(): nm_device_802_11_wireless_scan: supplicant error for 'SCAN'.  Response: '$' 
Sep 28 09:35:21 Kynes NetworkManager: <WARN>  nm_device_802_11_wireless_scan(): could not trigger wireless scan on device wlan0: Transport endpoint is not connected 
Sep 28 09:35:41 Kynes NetworkManager: <WARN>  nm_utils_supplicant_request_with_check(): nm_device_802_11_wireless_scan: supplicant error for 'SCAN'.  Response: '$' 
Sep 28 09:35:41 Kynes NetworkManager: <WARN>  nm_device_802_11_wireless_scan(): could not trigger wireless scan on device wlan0: Transport endpoint is not connected 
Sep 28 09:36:01 Kynes NetworkManager: <WARN>  nm_utils_supplicant_request_with_check(): nm_device_802_11_wireless_scan: supplicant error for 'SCAN'.  Response: '$' 
Sep 28 09:36:01 Kynes NetworkManager: <WARN>  nm_device_802_11_wireless_scan(): could not trigger wireless scan on device wlan0: Transport endpoint is not connected 
Sep 28 09:36:21 Kynes NetworkManager: <WARN>  nm_utils_supplicant_request_with_check(): nm_device_802_11_wireless_scan: supplicant error for 'SCAN'.  Response: '$' 
Sep 28 09:36:21 Kynes NetworkManager: <WARN>  nm_device_802_11_wireless_scan(): could not trigger wireless scan on device wlan0: Transport endpoint is not connected 
Sep 28 09:36:41 Kynes NetworkManager: <WARN>  nm_utils_supplicant_request_with_check(): nm_device_802_11_wireless_scan: supplicant error for 'SCAN'.  Response: '$' 
Sep 28 09:36:41 Kynes NetworkManager: <WARN>  nm_device_802_11_wireless_scan(): could not trigger wireless scan on device wlan0: Transport endpoint is not connected 
Sep 28 09:37:01 Kynes NetworkManager: <WARN>  nm_utils_supplicant_request_with_check(): nm_device_802_11_wireless_scan: supplicant error for 'SCAN'.  Response: '$' 
Sep 28 09:37:01 Kynes NetworkManager: <WARN>  nm_device_802_11_wireless_scan(): could not trigger wireless scan on device wlan0: Transport endpoint is not connected 
Sep 28 09:37:21 Kynes NetworkManager: <WARN>  nm_utils_supplicant_request_with_check(): nm_device_802_11_wireless_scan: supplicant error for 'SCAN'.  Response: '$' 
Sep 28 09:37:21 Kynes NetworkManager: <WARN>  nm_device_802_11_wireless_scan(): could not trigger wireless scan on device wlan0: Transport endpoint is not connected 
Sep 28 09:37:41 Kynes NetworkManager: <WARN>  nm_utils_supplicant_request_with_check(): nm_device_802_11_wireless_scan: supplicant error for 'SCAN'.  Response: '$' 
Sep 28 09:37:41 Kynes NetworkManager: <WARN>  nm_device_802_11_wireless_scan(): could not trigger wireless scan on device wlan0: Transport endpoint is not connected 
Sep 28 09:38:01 Kynes NetworkManager: <WARN>  nm_utils_supplicant_request_with_check(): nm_device_802_11_wireless_scan: supplicant error for 'SCAN'.  Response: '$' 
Sep 28 09:38:01 Kynes NetworkManager: <WARN>  nm_device_802_11_wireless_scan(): could not trigger wireless scan on device wlan0: Transport endpoint is not connected