RTL8822BE 蓝牙无法在 20.04 / 5.4.0-37-generic 上运行，但 WiFi 运行良好

Question

我的华硕 Z370-E 上的组合 wifi/bt 卡 RTL8822BE 似乎自升级到 20.04 以来就停止工作了。它在 19.10 中运行良好。WiFi 部分工作正常。有人能建议如何解决这个问题吗？谢谢。

rfkill list

0：phy0：无线局域网

软阻止：否

硬阻止：否

lshw

     *-pci:3
         description: PCI bridge
         product: 200 Series PCH PCI Express Root Port #3
         vendor: Intel Corporation
         physical id: 1c.2
         bus info: pci@0000:00:1c.2
         version: f0
         width: 32 bits
         clock: 33MHz
         capabilities: pci normal_decode bus_master cap_list
         configuration: driver=pcieport
         resources: irq:125 ioport:d000(size=4096) memory:f7300000-f73fffff
       *-network
            description: Wireless interface
            product: RTL8822BE 802.11a/b/g/n/ac WiFi adapter
            vendor: Realtek Semiconductor Co., Ltd.
            physical id: 0
            bus info: pci@0000:04:00.0
            logical name: wlp4s0
            version: 00
            serial: 64:6e:69:8b:31:03
            width: 64 bits
            clock: 33MHz
            capabilities: bus_master cap_list ethernet physical wireless
            configuration: broadcast=yes driver=rtw_pci driverversion=5.4.0-37-generic firmware=N/A ip=192.168.1.90 latency=0 link=yes multicast=yes wireless=IEEE 802.11
            resources: irq:150 ioport:d000(size=256) memory:f7300000-f730ffff

$lspci -nnx

04:00.0 网络控制器 [0280]: Realtek Semiconductor Co., Ltd. RTL8822BE

802.11a/b/g/n/ac WiFi 适配器 [10ec:b822]

00：ec 10 22 b8 07 04 10 00 00 00 80 02 10 00 00 00

10：01 d0 00 00 00 00 00 00 04 00 30 f7 00 00 00 00

20：00 00 00 00 00 00 00 00 00 00 00 00 43 10 46 87

30：00 00 00 00 40 00 00 00 00 00 00 00 ff 01 00 00

systemctl status bluetooth

● bluetooth.service - 蓝牙服务 已加载：已加载（/lib/systemd/system/bluetooth.service；已启用；供应商预设：已启用） 活动：未活动（已停止） 文档：man:bluetoothd(8)

6月18日 08:53:17 kiwi systemd[1]: 条件检查导致蓝牙服务被跳过。