** Branch linked: lp:~network-manager/network-manager/ubuntu -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1426122
Title: Problems switching between WiFi and Mobile Data on MTK-based phones Status in network-manager package in Ubuntu: In Progress Bug description: On recent vivid images running on phones with MTK modems ( arale, krillin ) switching between WiFi and mobile-data and back leads to broken networking where neither device ( WiFi or WWAN ) will establish a network connection. It appears that the new version of network-manager in vivid ( 0.9.10-4ubuntu6 ) is incorrectly attempting to manage the devices created by rild when mobile-data connections are established. For instance, on krillin running RTM, 'nmcli -d' reports the following networking devices: % nmcli d wlan0 wifi disconnected ril_0 gsm connected ril_1 gsm disconnected On the same device running vivid, an extra device which should be unmanaged is listed: % nmcli d ril_0 gsm connected /310410786147829/context2 ccmni0 wifi connected ccmni0 wlan0 wifi disconnected -- ril_1 gsm unavailable -- ccmni1 wifi unmanaged Note that ccmni0 is listed as a wifi device, with a status of connected whereas ccmni1 is listed as unmanaged. If you look at syslog, you'll see a two log messages output after ril_0 is activated which show network-manager detecting a change in ccmni0 and deciding it should become managed: This bug was discovered on ubuntu-touch/vivid-proposed #122. Feb 25 21:17:08 ubuntu-phablet NetworkManager[1163]: <info> (ccmni0): device state change: unmanaged -> unavailable (reason 'connection-assumed') [10 20\ 41] Feb 25 21:17:08 ubuntu-phablet NetworkManager[1163]: <info> (ccmni0): device state change: unavailable -> disconnected (reason 'connection-assumed') [20\ 30 41] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1426122/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
