Hi, I think I got a little further! The 4.4.0-21 seemed to work flawlessly, untill I found out that when enabling bluetooth I got the freezes. It even worked fine at first, but because the sound was crappy I changed the headphones profile to A2DP and then the freezes started as soon as I had network traffic by file transfer!
I can reproduce the freeze now by simply ding a file transfer over the network (over wifi) and then enable bluetooth. In the 4.4.0 and the 4.6.0 the bluetooth patch is present that tries to load the driver and the BCM.hcd file in /lib/firmware/brcm/ . This explains why the 4.2.0 kernel : 4.2.0-040200-generic #201510260713 SMP Mon Oct 26 11:14:43 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux seems to run fine, because it does not load any bluetooth driver. On that one I see from dmesg: [ 7.274842] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 7.274854] Bluetooth: BNEP filters: protocol multicast [ 7.274870] Bluetooth: BNEP socket layer initialized On the 4.4.21 with the bt support I see: [ 14.519814] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 14.519821] Bluetooth: BNEP filters: protocol multicast [ 14.519828] Bluetooth: BNEP socket layer initialized [ 15.524279] Bluetooth: hci0: BCM: Reading local version info failed (-110) [ 15.589273] Bluetooth: hci0: BCM: chip id 70 [ 15.605441] Bluetooth: hci0: BCM43142A [ 15.605450] Bluetooth: hci0: BCM (001.001.011) build 0000 [ 16.218220] Bluetooth: hci0: BCM (001.001.011) build 0172 [ 16.235944] Bluetooth: hci0: Broadcom Bluetooth Device (43142) The strange this is that it seems to have something to do with the audio profile. It all worked fine with just crappy bluetooth audio until I tried to change the profile. Strange there was that it didn't work neatly either, it required putting switches on and off and sometimes reloading the btusb driver. Anyway, since I seem to have something reproducable, how can I proceed? Thank you for the help! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1562618 Title: whole OS freezes seemingly randomly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1562618/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
