Red Hat Bugzilla – Bug 825407
Attempting to use Bluetooth earpiece kills Bluetooth until suspend or reboot
Last modified: 2013-07-31 16:33:26 EDT
Created attachment 586970 [details]
Output from hcidump
Description of problem:
My notebook has an Atheros 0cf3:3005 Bluetooth built-in USB adapter. I can use it fine to transfer files from my mobile phone. I have also set up a BH95 headset. As soon as this is turned on and connected,
- all other audio stops, and Pulse finds no other devices (including
the built-in hda-intel);
- Bluetooth: hci0 command tx timeout appears in dmesg;
- the adapter no longer works until reboot/suspend
(including attempts to use it with the phone).
I have attached the output of hcidump of me doing the following operations:
1. Browse files on my phone.
2. Unmount the phone, do the same again.
3. Unmount the phone, activate the headset.
4. Turn the headset off.
5. Attempt to access the phone again.
Running hciconfig after this produces the following:
hci0: Type: BR/EDR Bus: USB
BD Address: <ADAPTER-MAC-ADDRESS> ACL MTU: 1022:8 SCO MTU: 121:3
UP RUNNING PSCAN
RX bytes:277137 acl:472 sco:0 events:382 errors:0
TX bytes:9391 acl:268 sco:0 commands:58 errors:0
I then killed all instances of bluetoothd and removed the btusb module. For some reason there was a ~5 second delay while the module was removed. I then re-inserted the module. Running hciconfig again:
hci0: Type: BR/EDR Bus: USB
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN INIT RUNNING
RX bytes:0 acl:0 sco:0 events:0 errors:0
TX bytes:0 acl:0 sco:0 commands:1 errors:0
Trying to run hciconfig hci0 up results in
Can't init device hci0: Connection timed out (110)
It stays this way until I reboot or suspend/resume the machine.
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