Debian GNU/Linux

Comment 21 for bug 268502

Same problem with 2 bluetooth adapters, this one is from my usb dongle:

Bus 001 Device 006: ID 1131:1004 Integrated System Solution Corp. Bluetooth Device

And the error on dmesg:

[ 235.132015] hci_cmd_task: hci0 command tx timeout

I can see (and pair) the devices, but any other activity fails.