debian10 wifi问题!不是简单的驱动问题!希望能得到大佬的指点

系统版本:debian10
内核版本:4.19

问题描述:
安装好wifi的驱动和固件后,wifi可以正常使用,但是在安装完蓝牙所需要的固件后,wifi不能用,但是蓝牙可以了。我想wifi和蓝牙一起用,求解决

报错信息:
1月 18 11:56:42 debian NetworkManager[687]: [1579319802.0788] device (wlp7s0): driver supports Access Point (AP) mode
1月 18 11:56:42 debian NetworkManager[687]: [1579319802.0799] manager: (wlp7s0): new 802.11 WiFi device (/org/freedesktop/NetworkManager/Devices/4)
1月 18 11:56:42 debian NetworkManager[687]: [1579319802.0818] device (wlp7s0): state change: unmanaged -> unavailable (reason ‘managed’, sys-iface-state: ‘external’
1月 18 11:56:42 debian kernel: IPv6: ADDRCONF(NETDEV_UP): wlp7s0: link is not ready
1月 18 11:56:42 debian NetworkManager[687]: [1579319802.1074] platform-linux: do-change-link[4]: failure changing link: failure 1 (不允许的操作)
1月 18 11:56:42 debian NetworkManager[687]: [1579319802.1075] device (wlp7s0): set-hw-addr: set MAC address to CE:E8:FA:4C:3E:C7 (scanning)
1月 18 11:56:42 debian NetworkManager[687]: [1579319802.1082] platform-linux: do-change-link[4]: failure changing link: failure 1 (不允许的操作)
1月 18 11:56:42 debian NetworkManager[687]: [1579319802.1104] device (enp0s20f0u3): state change: unavailable -> disconnected (reason ‘none’, sys-iface-state: 'mana
1月 18 11:56:42 debian kernel: r8822be: halmac_init_hal failed
1月 18 11:56:42 debian kernel: r8822be: halmac_init_hal failed
1月 18 11:56:42 debian wpa_supplicant[686]: Could not set interface wlp7s0 flags (UP): Operation not permitted
1月 18 11:56:42 debian wpa_supplicant[686]: nl80211: Could not set interface ‘wlp7s0’ UP
1月 18 11:56:42 debian wpa_supplicant[686]: nl80211: deinit ifname=wlp7s0 disabled_11b_rates=0
1月 18 11:56:42 debian NetworkManager[687]: [1579319802.1142] dhcp4 (enp0s20f0u3): dhclient started with pid 775
1月 18 11:56:42 debian wpa_supplicant[686]: Could not set interface wlp7s0 flags (UP): Operation not permitted
1月 18 11:56:42 debian wpa_supplicant[686]: WEXT: Could not set interface ‘wlp7s0’ UP
1月 18 11:56:42 debian wpa_supplicant[686]: wlp7s0: Failed to initialize driver interface
1月 18 11:56:42 debian kernel: r8822be: halmac_init_hal failed
1月 18 11:56:42 debian kernel: r8822be: halmac_init_hal failed

首先确保/etc/apt/sources.list文件中有backports反向移植软件源。
如果设置好了,打开终端,先进入管理员身份,接着输入

apt install -t buster-backports firmware-realtek linux-image-amd64

执行后,会下载安装更新版的内核文件和realtek蓝牙和无线模块的更新驱动文件。

更新安装完后,重启一下。应该就可以了。