I recently installed a Intel 7260 wireless module in the pcie slot of my ASUS N550jv CN270H laptop. The idea was to get bluetooth and wifi working flawlessly, as the originally installed atheros card has bad wifi management, and only randomly loads bluetooth correctly (there is a launchpad issue on this which has been open for several years now).
Nevertheless, now I have great wifi but no bluetooth at all.
I noticed this bug: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1209124
The reporter shows a dmesg output, indicating that firmware is loaded:
[ 1.738944] Bluetooth: hci0: Intel Bluetooth firmware file: intel/ibt-hw-37.7.10-fw-22.214.171.124.d.bseq
However, my system doesn't report this in dmesg:
... [ 5.710455] NET: Registered protocol family 31 [ 5.710457] Bluetooth: HCI device and connection manager initialized [ 5.710463] Bluetooth: HCI socket layer initialized [ 5.710466] Bluetooth: L2CAP socket layer initialized [ 5.710479] Bluetooth: SCO socket layer initialized [ 5.719906] Bluetooth: RFCOMM TTY layer initialized [ 5.719916] Bluetooth: RFCOMM socket layer initialized [ 5.719921] Bluetooth: RFCOMM ver 1.11 [ 5.723154] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 5.723157] Bluetooth: BNEP filters: protocol multicast [ 5.723163] Bluetooth: BNEP socket layer initialized ...
I do, however, have the firmware installed, or at least something that looks like firmware:
herbert@machine ~ $ ls /lib/firmware/intel/ ibt-hw-37.7.10-fw-126.96.36.199d.d.bseq ibt-hw-37.7.10-fw-188.8.131.52d.d.bseq ibt-hw-37.7.bseq ibt-hw-37.8.10-fw-184.108.40.206.e.bseq ibt-hw-37.7.10-fw-220.127.116.11.d.bseq ibt-hw-37.7.10-fw-18.104.22.168.d.bseq ibt-hw-37.8.10-fw-22.214.171.124.d.bseq ibt-hw-37.8.bseq
The firmware for the wifi seems to be loaded, which is consistent with the fact that my wifi works:
[ 5.483705] iwlwifi 0000:04:00.0: loaded firmware version 126.96.36.199 op_mode iwlmvm
So my kernel seems to do something w.r.t. bluetooth, but not load firmware. Also,
hcitool dev shows no devices and /sys/class/bluetooth/ is empty. Also
lshw shows no bluetooth devices, but it does show the wifi card:
*-network description: Wireless interface product: Wireless 7260 vendor: Intel Corporation physical id: 0 bus info: pci@0000:04:00.0 logical name: wlan1 version: 73 serial: d8:fc:93:dd:96:9f width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=3.16.0-33-generic firmware=188.8.131.52 ip=192.168.1.107 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn resources: irq:55 memory:f7900000-f7901fff
Linux machine 3.16.0-33-generic #44~14.04.1-Ubuntu SMP Fri Mar 13 10:33:29 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
Obviously, I want a fix, but answers to these might also help (and I will be grateful!):
How can I find out what firmware I should use for my kernel/device combo? I found this page which informs on this for the wifi, but none for the bluetooth: https://wireless.wiki.kernel.org/en/users/Drivers/iwlwifi?action=AttachFile&do=get&target=iwlwifi-7260-ucode-184.108.40.206.tgz
I'm assuming the Bluetooth device and the wifi device need different firmware, even though then are the same physical piece of electronics, is that correct?
Can I try to manually inject firmware, as modprobe/rmmod/lsmod/insmod do for modules, and see what error I get?
What kernel version should I use? I upgraded from 3.13.something-something to 3.16.0-33 using
apt-get installin the hopes of having better 'firmware support'. This did not help.