Public bug reported: I have Ubuntu 20.04 installed on atom-based tablet ACER Aspire Switch 10. And bluetooth does not work. In fact it looks like ubuntu does not recognize bluetooth HW at all. But the system does have bluetooth module which under windows is recognized as RTK8723 (ACPI\RTK8723\some-id) At the same time WiFi works without issues (the same module, if I am not mistaken).
$ lsb_release -d Description: Ubuntu 20.04 LTS $ uname -vr 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020 $ dmesg | grep -i 8723 [ 8.087918] r8723bs: module is from the staging directory, the quality is unknown, you have been warned. [ 8.088914] r8723bs: module verification failed: signature and/or required key missing - tainting kernel [ 8.092667] RTL8723BS: module init start [ 8.092671] RTL8723BS: rtl8723bs v4.3.5.5_12290.20140916_BTCOEX20140507-4E40 [ 8.092673] RTL8723BS: rtl8723bs BT-Coex version = BTCOEX20140507-4E40 [ 8.303955] RTL8723BS: rtw_ndev_init(wlan0) [ 8.304653] RTL8723BS: module init ret =0 [ 13.200223] rtl8723bs: acquire FW from file:rtlwifi/rtl8723bs_nic.bin [ 17.832536] RTL8723BS: rtw_set_802_11_connect(wlan0) fw_state = 0x00000008 [ 17.889893] RTL8723BS: start auth [ 17.892815] RTL8723BS: auth success, start assoc [ 17.901012] RTL8723BS: rtw_cfg80211_indicate_connect(wlan0) BSS not found !! [ 17.901053] RTL8723BS: assoc success [ 17.913846] RTL8723BS: send eapol packet [ 17.939873] RTL8723BS: send eapol packet [ 17.942652] RTL8723BS: set pairwise key camid:4, addr:50:c7:bf:31:a1:fa, kid:0, type:AES [ 17.944712] RTL8723BS: set group key camid:5, addr:50:c7:bf:31:a1:fa, kid:1, type:TKIP $ rfkill list all 0: acer-wireless: Wireless LAN Soft blocked: no Hard blocked: no 1: acer-bluetooth: Bluetooth Soft blocked: no Hard blocked: no 2: phy0: Wireless LAN Soft blocked: no Hard blocked: no ** Affects: ubuntu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877192 Title: RTL8723bs bluetooth not working on 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1877192/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs