On 20.08.2016 13:40, Tanu Kaskinen wrote: > On Fri, 2016-08-19 at 13:57 +0700, Hieu Le wrote: >> I'm trying to get a SPK-ProHT Bluetooth speaker and headset working on an >> embedded Linux board but when I failed to use pacmd set-card-profile to >> choose headset_head_unit profile. Checking pulseaudio lof file, it seems >> backend-native cannot connect to SCO socket. Sorry this is a very long mail >> due to debug logs attached > The problem seems to be that connect() fails with "Protocol not > supported". This problem has been reported a few times, but I don't > know how to fix it. It seems like missing functionality in the kernel, > so my guess is that you're missing some bluetooth related driver. If > you get it working somehow, please report back how you did it. > > The bluez mailing list might be able to help better. > Hi, I remember there was a kernel problem which prevented some headsets from working. The bug was introduced in 3.12 and was fixed in 3.18. See also https://lists.freedesktop.org/archives/pulseaudio-discuss/2015-March/023298.html Regards Georg
