Eu notei isso depois de atualizar meu desktop (peças PC de commodity) de 12.04lts para 14.04 lts. Atualização feita com o atualizador depois de ser notificado ontem que havia uma nova versão disponível. Eu tenho cutucado por algumas horas em vários computadores. Dois têm o problema e um parece bem. A partir desta área de trabalho, os logs mostram uma diferença entre as versões na mesma máquina na inicialização do syslog bluetooth.
O dispositivo bluetooth é um teclado da Logitech Edge com um adaptador USB Bluetooth 2.0.
12.04lts (trabalhando):
Aug 12 21:27:26 ceora bluetoothd[1058]: Bluetooth daemon 4.98
Aug 12 21:27:26 ceora bluetoothd[1058]: Starting SDP server
Aug 12 21:27:26 ceora bluetoothd[1058]: Failed to init alert plugin
Aug 12 21:27:26 ceora bluetoothd[1058]: Failed to init time plugin
Aug 12 21:27:26 ceora bluetoothd[1058]: Failed to init proximity plugin
Aug 12 21:27:26 ceora bluetoothd[1058]: Failed to init gatt_example
plugin
Aug 12 21:27:26 ceora bluetoothd[1058]: Listening for HCI events on hci0
Aug 12 21:27:26 ceora bluetoothd[1058]: HCI dev 0 up
Aug 12 21:27:27 ceora bluetoothd[1058]: Adapter /org/bluez/1058/hci0 has
been enabled
Aug 12 21:27:53 ceora bluetoothd[1058]: Endpoint registered:
sender=:1.39 path=/MediaEndpoint/HFPAG
Aug 12 21:27:53 ceora bluetoothd[1058]: Endpoint registered:
sender=:1.39 path=/MediaEndpoint/A2DPSource
Aug 12 21:27:53 ceora bluetoothd[1058]: Endpoint registered:
sender=:1.39 path=/MediaEndpoint/A2DPSink
Aug 12 21:28:19 ceora bluetoothd[1058]: Endpoint registered:
sender=:1.53 path=/MediaEndpoint/HFPAG
Aug 12 21:28:19 ceora bluetoothd[1058]: Endpoint registered:
sender=:1.53 path=/MediaEndpoint/A2DPSource
Aug 12 21:28:19 ceora bluetoothd[1058]: Endpoint registered:
sender=:1.53 path=/MediaEndpoint/A2DPSink
Aug 12 21:28:34 ceora bluetoothd[1058]: Endpoint unregistered:
sender=:1.39 path=/MediaEndpoint/HFPAG
Aug 12 21:28:34 ceora bluetoothd[1058]: Endpoint unregistered:
sender=:1.39 path=/MediaEndpoint/A2DPSource
Aug 12 21:28:34 ceora bluetoothd[1058]: Endpoint unregistered:
sender=:1.39 path=/MediaEndpoint/A2DPSink
14.04lts (quebrado):
Aug 14 12:30:18 ceora bluetoothd[5360]: Bluetooth daemon 4.101
Aug 14 12:30:18 ceora bluetoothd[5360]: Starting SDP server
Aug 14 12:30:18 ceora bluetoothd[5360]: DIS cannot start: GATT is disabled
Aug 14 12:30:18 ceora bluetoothd[5360]: Failed to init deviceinfo plugin
Aug 14 12:30:18 ceora bluetoothd[5360]: Failed to init proximity plugin
Aug 14 12:30:18 ceora bluetoothd[5360]: Failed to init time plugin
Aug 14 12:30:18 ceora bluetoothd[5360]: Failed to init alert plugin
Aug 14 12:30:18 ceora bluetoothd[5360]: Failed to init thermometer plugin
Aug 14 12:30:18 ceora bluetoothd[5360]: Failed to init gatt_example plugin
Aug 14 12:30:18 ceora bluetoothd[5360]: Bluetooth Management interface initialized
Para o computador que funciona com o 14.04 (um Dell mini 910):
Aug 14 12:32:12 dellmini bluetoothd[7378]: Bluetooth daemon 4.101
Aug 14 12:32:12 dellmini bluetoothd[7378]: Starting SDP server
Aug 14 12:32:12 dellmini bluetoothd[7378]: DIS cannot start: GATT is disabled
Aug 14 12:32:12 dellmini bluetoothd[7378]: Failed to init deviceinfo plugin
Aug 14 12:32:12 dellmini bluetoothd[7378]: Failed to init proximity plugin
Aug 14 12:32:12 dellmini bluetoothd[7378]: Failed to init time plugin
Aug 14 12:32:12 dellmini bluetoothd[7378]: Failed to init alert plugin
Aug 14 12:32:12 dellmini bluetoothd[7378]: Failed to init thermometer plugin
Aug 14 12:32:12 dellmini bluetoothd[7378]: Failed to init gatt_example plugin
Aug 14 12:32:12 dellmini bluetoothd[7378]: Bluetooth Management interface initialized
Aug 14 12:32:12 dellmini bluetoothd[7378]: Adapter /org/bluez/7378/hci0 has been enabled
Aug 14 12:32:12 dellmini bluetoothd[7378]: Endpoint registered: sender=:1.67 path=/MediaEndpoint/HFPAG
Aug 14 12:32:12 dellmini bluetoothd[7378]: Endpoint registered: sender=:1.67 path=/MediaEndpoint/HFPHS
Aug 14 12:32:12 dellmini bluetoothd[7378]: Endpoint registered: sender=:1.67 path=/MediaEndpoint/A2DPSource
Aug 14 12:32:12 dellmini bluetoothd[7378]: Endpoint registered: sender=:1.67 path=/MediaEndpoint/A2DPSink
Aug 14 12:32:12 dellmini bluetoothd[7378]: hci0: Load Long Term Keys (0x0013) failed: Not Supported (0x0c)
Observe que a linha referente ao Adaptador /org/bluez/1058/hci0
está presente nas configurações de trabalho e está faltando no quebrado. Eu também tenho um Acer Aspire One rodando 14.04 que tem os mesmos sintomas / logs que meu desktop quebrado e o bluetooth está quebrado lá também. Eu tinha o teclado bluetooth trabalhando no Acer com 13.04 ou 13.10, mas não me lembro qual.
Na interface do usuário, a quebra se mostra nas Configurações do sistema - > Bluetooth como tudo desabilitado com Nenhum adaptador Bluetooth encontrado na lista de adaptadores. A caixa de seleção para Mostrar status do Bluetooth na barra de menus será verificada, mas nada será exibido.