The problem with the headset connection was caused by a missing package in xubuntu. I installed pulseaudio-module-bluetooth and now everything works as expected!
To summarize: For xubuntu, pulseaudio-module-bluetooth should be included by default. For wily, the files /lib/firmware/ar3k/AthrBT_0x31010100.dfu /lib/firmware/ar3k/ramps_0x31010100_40.dfu should be included. For xenial, the .dfu files are present, but the kernel should be patched. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1542944 Title: QCA9565 / AR9565 bluetooth not work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1542944/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs