bluetooth audio skips, cuts out
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
bluetooth-alsa (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: bluetooth-alsa
In Gutsy Server edition and using bluetooth-alsa 0.5cvs20070602, I'm experiencing issues streaming audio from a dongle to an audio receiver / headset device. After quite some time getting things connected and working (it was fairly difficult without a GUI), I get good quality audio for brief periods of time followed by intermittent loss of sound (~2-3 seconds at a time). When I boot into Windows XP using the same dongle (ASUS) and headset and stream music, the problem never occurs. I had the same problem with a previous completely different dongle / headset combination I was using previously.
Whether I use the pcm.A2DPD device or the pcm.bluetooth device doesn't seem to matter -- I still get intermittent loss of sound.
The only error messages that I can find are long streams of the following in /var/log/syslog:
l2cap_recv_acldata: Unexpected continuation frame (len 0)
'hcitool con' gives me:
< ACL xx:xx:xx:xx:xx:xx handle 12 state 1 lm MASTER
'hciconfig -a' gives me:
hci0: Type: USB
BD Address: xx:xx:xx:xx:xx:xx ACL MTU: 1017:8 SCO MTU: 64:0
UP RUNNING PSCAN ISCAN
RX bytes:118166 acl:24 sco:0 events:16699 errors:0
TX bytes:40583941 acl:66660 sco:0 commands:26 errors:0
Features: 0xff 0xff 0x8d 0xfe 0x9b 0xf9 0x00 0x80
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH HOLD SNIFF PARK
Link mode: SLAVE ACCEPT
Name: 'storm-0'
Class: 0x080100
Service Classes: Capturing
Device Class: Computer, Uncategorized
HCI Ver: 2.0 (0x3) HCI Rev: 0x4000 LMP Ver: 2.0 (0x3) LMP Subver: 0x430e
Changed in bluetooth-alsa (Ubuntu): | |
status: | Expired → New |
i get the same effect on my dell vostro 1710 running 8.10 64bit desktop. d/bluetooth stop
but i don't get any error messages anywhere. It also seems to effect my
wireless network connection which doesn't recover unless i stop hcid
with sudo /etc/init.
hciconfig -a
hci0: Type: USB
BD Address: 00:1E:37:EC:FF:73 ACL MTU: 310:10 SCO MTU: 64:8
UP RUNNING PSCAN ISCAN
RX bytes:1548632 acl:19 sco:0 events:221075 errors:0
TX bytes:63505375 acl:221031 sco:0 commands:38 errors:0
Features: 0xff 0xff 0x8f 0xfe 0x9b 0xf9 0x00 0x80
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH HOLD SNIFF PARK
Link mode: SLAVE ACCEPT
Name: 'rome'
Class: 0x0a010c
Service Classes: Networking, Capturing
Device Class: Computer, Laptop
HCI Ver: 2.0 (0x3) HCI Rev: 0x10db LMP Ver: 2.0 (0x3) LMP Subver: 0x10db
Manufacturer: Cambridge Silicon Radio (10)
Are there any settings i can adjust to give it a chance of being more robust ?