I'm on Manjaro Linux.
I ran powertop -c, and after the calibration process, my bluetooth stoped working.
Here are the ouputs of somme commands I ran:
$ lsmod | grep bluetooth
bluetooth 626688 7 bnep
ecdh_generic 24576 1 bluetooth
rfkill 28672 8 bluetooth,dell_laptop,dell_rbtn,cfg80211
crc16 16384 2 bluetooth,ext4
$ rfkill list all
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 003: ID 0c45:6a05 Microdia
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
However, I have no idea of how to fix it.