You have been subscribed to a public bug: The BT part of mobo mounted combo device rtl 8822 with wifi and BT disappears sometimes. Wifi seems to work without problems. BT can just seem to disappear. I have not found a way to reinitialize it. Rebooting "sometimes" works. BT can work fine for a while, then suddenly disappear.
Booting into Fedora 28, BT has always been present. Upon booting back into Mint 19, BT is present here too. In the cases when BT has disappeared, bluetooth manager applet says "no adapters". bluetoothctl: power on does not work. linux-firmware/bionic-updates,bionic-updates,now 1.173.1 linux-image-4.15.0-34-generic/bionic-updates,bionic-security,now 4.15.0-34.37 amd64 when working: $ lsmod | grep 8822 r8822be 851968 0 mac80211 778240 1 r8822be cfg80211 622592 2 mac80211,r8822be $ lsmod | grep btusb btusb 45056 0 btrtl 16384 1 btusb btbcm 16384 1 btusb btintel 16384 1 btusb bluetooth 548864 43 btrtl,btintel,bnep,btbcm,rfcomm,btusb ** Affects: bluez (Ubuntu) Importance: Undecided Status: New -- bluetooth device "disappears", rtl 8822, combo wifi + bt https://bugs.launchpad.net/bugs/1793726 You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bluez in Ubuntu. -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp