Arch Linux

^x3ro

Member

Registered: 2018-02-22

Posts: 3

Bluetooth MAC changed after sleep - Bluetooth not working anymore

Hi there,

I'm having trouble getting my Bluetooth to work again. After a long long time I finally found some time yesterday to play around with Bluetooth on my laptop and it worked quite well.

After going through the install instructions at the Wiki, I could see a Bluetooth controller and was able to pair it with my HiFi system. A reboot later I realized, that there is another controller available now which wasn't there before. I thought it was my dongle (which is dedicated to my PS3 controller on my Windows dual boot and is not always available as I also use the controller on my desktop PC).

It turned out, that the new controller was in fact the internal controller and so I unpaired the dongle and paired with my HiFi using the internal controller. It worked out of the box with not further issues (the only thing I seem to have to do after a reboot is to restart pulseaudio using pulseaudio -k).

The Problem

Today, I woke up my laptop from sleep and wanted to listen to some music but I realized that my internal controller has somehow changed (at least the MAC address has changed). Yesterday it was something like

AD:XX:XX...

(which reminded me of my WLAN MAC address) but today it says

00:00:00:00:XX:XX

Wouldn't bother me if I could still use it but scanning for devices shows nothing and I can't see my laptop with other devices.

Using the dongle still works but is not an option because a) I do not have that many USB ports and more important b) the dongle is not always connected to my laptop because I also use it on my desktop pc.

Of course I tried it the windows way and rebooted but with no luck. The controller still shows up with way too many zeroes.

My Laptop
Acer Aspire V Nitro (Aspire VN7-591G) [Datasheet]

$ archey | sed 's/^[^A-Z]*//g' | grep -P 'Model|Distro|Kernel|Window|Desktop'
Model: Aspire VN7-591G
Distro: "Arch Linux" x86_64
Kernel: 4.15.8-1-ARCH
WindowManager: i3
DesktopEnvironment: Not detected

# lshw -c network
  *-network                 
       description: Wireless interface
       product: QCA6174 802.11ac Wireless Network Adapter
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:07:00.0
       logical name: wlp7s0
       version: 20
       serial: ac:d1:b8:16:6b:95
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ath10k_pci driverversion=4.15.8-1-ARCH firmware=SW_RM.1.1.1-00157-QCARMSWPZ-1 ip=192.168.0.21 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:36 memory:d1400000-d15fffff
...

# pacman -Suy
:: Synchronizing package databases...
 core is up to date
 extra is up to date
 community is up to date
 multilib is up to date
:: Starting full system upgrade...
 there is nothing to do

Is there someone out there who could help me with that?