After I put my computer to sleep, my bluetooth didn't work.
I reinstalled bluez following the instructions in this post but it didn't work.
rfkill list gives me:
0: phy0: Wireless LAN Soft blocked: no Hard blocked: no
I'm on Ubuntu 19.04.
When I run
dmesg | grep -i blue
I have no output. Seems like my bluetooth adapter is not detected. That's strange because it was working well before...
I booted Ubuntu from a USB stick and bluetooth was disabled too.
I updated my BIOS thinking it would re-detect / activate the bluetooth adapter but it did not solve my problem.