Hello Attila, On 20 January 2018 at 08:35, Tőkés Attila <attitokes@xxxxxxxxx> wrote: > Hi Everyone, > > I'm trying to use a Bluetooth speaker with Raspberry Pi 3 in HSP mode > with PulseAudio. > > Based on the information I found on the web (blogs / forums / mailing > list archives), apparently, HSP does not really works with the > Rasberry Pi's built in BCM43438 chip. I didn't found the exact reason > yet. Some people suggest it may be a problem with the BCM43438 > firmware or with the kernel driver. A2DP, and HSP with USB Bluetooth > dongles are reported to be working fine. (The most complete > description I found about the problem is: > http://youness.net/raspberry-pi/bluetooth-headset-raspberry-pi-3-ad2p-hsp) > > I think it would be useful to get clear picture about the problem. And > maybe we could try to fix it. There is an issue on the Raspberry Pi Foundation/Trading GitHub for their Linux kernel source tree: https://github.com/raspberrypi/linux/issues/1552 > Does anyone managed to figure out what exactly the problem is? The trail on issue 1552 goes all the way back to Cypress/Broadcom via people at Raspberry Pi Trading and has the status of "waiting for internal comment" so I suspect they will be the people to ping about this. > > I started investigating the issue, but didn't got any result yet. I > didn't had too much experience with the Linux's Bluetooth stack, so > some help with the further investigation would be useful. > > ---- > > Bellow are some details of my investigation. > > Hardware: Raspberry Pi 3 + JBL GO! Bluetooth speaker > > Kernel: raspberrypi 4.14.14-v7 > BlueZ: 5.43 > PulseAudio: 11.1 > > Summary: > - BCM43438's driver is sucessfuly loaded, it's firmware is uploaded successfully > - the Bluetooth speaker gets detected and the pairing / connection works fine > - PulseAudio detects the speaker as a card > - both the headset_head_unit and a2dp_sink profiles are shown by > `pacmd list-cards` and can be set with `pacmd set-card-profile` > - with the a2dp_sink profile, the audio playback works fine (tested > with `paplay`) > - with the headset_head_unit profile, `paplay` gets stuck at start a > no audio is played (`parecord` does the same) > > I started booth BlueZ and PulseAudio in debug mode, but found nothing > obviuosly wrong (at least for me :P) in the logs. Also did a HCI dump. > > Linking the following logs (uploaded to PasteBin; they are too long > inline them): > - the Blootoothd's log - https://pastebin.com/WC17Ze0r > - the PlulseAudio's log - https://pastebin.com/jUjqjuhC > - the output of the PA commands - https://pastebin.com/wvRzdTEx > - the output of some BL Tools (sdptool / bluetoothctl / hciconfig) - > https://pastebin.com/Ax7XYr94 > - the HCI dump -https://pastebin.com/zqhqKu57 > > SCO dump did not managed to get. > > I executed the following steps: > (the steps are marked in the log files too): > - start Blootoothd > - start PulseAudio > - powered on the Bloothooth speaker > - tried to play some audio > $ pacmd list cards > $ pacmd set-card-profile 1 headset_head_unit > $ paplay -v -d bluez_sink.78_44_05_4B_4F_FF.headset_head_unit > /tmp/h2g2.ogg (gets stuck) > $ pacmd set-card-profile 1 a2dp_sink > $ paplay -v -d bluez_sink.78_44_05_4B_4F_FF.a2dp_sink /tmp/h2g2.ogg (works) > > Thanks, > Attila > -- > To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
