On Wed, 2016-08-24 at 18:26 +0700, Hieu Le wrote: > Thanks for your instruction. > > Today, I tried to use hcidump to capture the Bluetooth events in two > cases: > > 1. Switch to headset_head_unit profile: > < HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17 > Â Â Â Â handle 1 voice setting 0x0060 ptype 0x0380 > > > > HCI Event: Command Status (0x0f) plen 4 > Â Â Â Â Setup Synchronous Connection (0x01|0x0028) status 0x1a ncmd 1 > Â Â Â Â Error: Unsupported Remote Feature / Unsupported LMP Feature > < HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17 > Â Â Â Â handle 1 voice setting 0x0060 ptype 0x0380 > > > > HCI Event: Command Status (0x0f) plen 4 > Â Â Â Â Setup Synchronous Connection (0x01|0x0028) status 0x1a ncmd 1 > Â Â Â Â Error: Unsupported Remote Feature / Unsupported LMP Feature > < HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17 > Â Â Â Â handle 1 voice setting 0x0060 ptype 0x03c8 > > > > HCI Event: Command Status (0x0f) plen 4 > Â Â Â Â Setup Synchronous Connection (0x01|0x0028) status 0x1a ncmd 1 > Â Â Â Â Error: Unsupported Remote Feature / Unsupported LMP Feature > < HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17 > Â Â Â Â handle 1 voice setting 0x0060 ptype 0x03c4 > > > > HCI Event: Command Status (0x0f) plen 4 > Â Â Â Â Setup Synchronous Connection (0x01|0x0028) status 0x00 ncmd 1 > > > > HCI Event: Synchronous Connect Complete (0x2c) plen 17 > Â Â Â Â status 0x00 handle 257 bdaddr 00:1F:81:34:08:22 type SCO > Â Â Â Â Air mode: CVSD > > > > HCI Event: Max Slots Change (0x1b) plen 3 > Â Â Â Â handle 1 slots 3 > < SCO data: handle 257 flags 0x00 dlen 48 > < SCO data: handle 257 flags 0x00 dlen 48 > > > > HCI Event: Max Slots Change (0x1b) plen 3 > Â Â Â Â handle 1 slots 1 > > 2. When using parecord to capture audio input from headset: > However, in this case, hcidump captured nothing !!! It is very odd > !!!! > > Do you have any suggestion or advice for this? My only advice is to try asking the bluez developers. I have no idea what is wrong. It looks to me that this is not a pulseaudio bug, but without knowing the root cause, I can't be sure of that. --Â Tanu
