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I'm using Ubuntu without trying to make the Bluetooth work (because I don't really need it) for more than a year, and I'm aware it doesn't work because my wireless adapter isn't originally compatible with Linux. So on every kernel upgrade I reinstall the MT7630E driver which comes from this git in order to use the Wi-Fi, but I stopped worrying about making the Bluetooth work as well...

Until on a reboot the Bluetooth started to work (I found out because I had a the tray icon which is usually not there), and I thought that was a good thing up to when I plugged of the Ethernet cable and noticed the Wi-Fi didn't work (i.e. no option to turn it on, like when I have to reinstall the driver). So I just rebooted, because I have more use of Wi-Fi than Bluetooth, and all was back as usual (Wi-Fi, no Bluetooth).

As I said I don't really mind that the Bluetooth works or not (better if it does though), but why would it work once and not the rest of the time ?

The only "special" actions prior to this event, that I can think of, are :

  1. I installed grub-customizer (which I no longer had since a fresh install a month ago) ;
  2. I rebooted under Windows 10, which I don't use often (so this is why I hadn't installed grub-customizer yet) ;
  3. Did what I had to do on Windows (maybe some upgrades as well)
  4. I rebooted back to Ubuntu (I always reboot and don't shut down to ensure there is not hardware conflict - due to hibernation or I don't know what - when I switch between OSs).

And then was the Bluetooth working.

N. Cornet
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  • I don't see how it is a duplicate of this thread, I mentioned that I installed the driver for MT7630E, and the installation works because the Wi-Fi works. This other post does not provide any answers concerning Bluetooth-specific issues – N. Cornet Apr 27 '18 at 15:40

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