如何让我的pci wifi卡rtl8822在ubuntu上工作

我在我的HP OMEN 15（2017）笔记本电脑上安装了Ubuntu 17.04，发现wifi卡无法正常工作。 我按照我的WiFi适配器的一些建议完全没有工作，如何排除故障？ | 问Ubuntu我发现wifi卡ID是Realtek 10ec：b822。

我在这些网站上找到了一些信息：
产品信息网站： RTL8822BE | Realtek.com
用于Windows的驱动程序：用于Windows 10（64位）的Realtek RTL8822BE无线LAN驱动程序 support.lenovo.com

########## wireless info START ########## Report from: 17 Jun 2017 15:09 CST +0800 Booted last: 17 Jun 2017 00:00 CST +0800 Script from: 25 Mar 2017 07:04 UTC +0000 ##### release ########################### Distributor ID: Ubuntu Description: Ubuntu 17.04 Release: 17.04 Codename: zesty ##### kernel ############################ Linux 4.10.0-19-generic #21-Ubuntu SMP Thu Apr 6 17:04:57 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux Parameters: ro, quiet, splash, vt.handoff=7 ##### desktop ########################### GNOME ##### lspci ############################# 03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 16) Subsystem: Hewlett-Packard Company RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [103c:838f] Kernel driver in use: r8169 04:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b822] Subsystem: Hewlett-Packard Company Device [103c:831b] 05:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader [10ec:522a] (rev 01) ##### lsusb ############################# Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 0bda:b00b Realtek Semiconductor Corp. Bus 001 Device 002: ID 04f2:b5d6 Chicony Electronics Co., Ltd Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub ##### PCMCIA card info ################## ##### rfkill ############################ 0: hci0: Bluetooth Soft blocked: no Hard blocked: no ##### lsmod ############################# hp_wmi 16384 0 sparse_keymap 16384 1 hp_wmi mxm_wmi 16384 1 nouveau wmi 16384 3 mxm_wmi,nouveau,hp_wmi ##### interfaces ######################## auto lo iface lo inet loopback ##### ifconfig ########################## 1: lo:  mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback  brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: enp3s0:  mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether  brd  inet 192.168.50.5/24 brd 192.168.50.255 scope global dynamic enp3s0 valid_lft 83146sec preferred_lft 83146sec inet6 fe80::ef4:dc54:7aa3:546/64 scope link valid_lft forever preferred_lft forever ##### iwconfig ########################## enp3s0 no wireless extensions. lo no wireless extensions. ##### route ############################# default via 192.168.50.1 dev enp3s0 proto static metric 100 169.254.0.0/16 dev enp3s0 scope link metric 1000 192.168.50.0/24 dev enp3s0 proto kernel scope link src 192.168.50.5 metric 100 ##### resolv.conf ####################### nameserver 127.0.0.53 ##### network managers ################## Installed: NetworkManager Running: root 829 1 0 14:15 ? 00:00:00 /usr/sbin/NetworkManager --no-daemon ##### NetworkManager info ############### GENERAL.DEVICE: enp3s0 GENERAL.TYPE: ethernet GENERAL.NM-TYPE: NMDeviceEthernet GENERAL.VENDOR: Realtek Semiconductor Co., Ltd. GENERAL.PRODUCT: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller GENERAL.DRIVER: r8169 GENERAL.DRIVER-VERSION: 2.3LK-NAPI GENERAL.FIRMWARE-VERSION: GENERAL.HWADDR:  GENERAL.MTU: 1500 GENERAL.STATE: 100 (connected) GENERAL.REASON: 0 (No reason given) GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.4/0000:03:00.0/net/enp3s0 GENERAL.IP-IFACE: enp3s0 GENERAL.IS-SOFTWARE: no GENERAL.NM-MANAGED: yes GENERAL.AUTOCONNECT: yes GENERAL.FIRMWARE-MISSING: no GENERAL.NM-PLUGIN-MISSING: no GENERAL.PHYS-PORT-ID: -- GENERAL.CONNECTION: Wired connection 1 GENERAL.CON-UUID: d0a6c4d6-510a-325c-8465-361e2f13261b GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/0 GENERAL.METERED: no (guessed) CAPABILITIES.CARRIER-DETECT: yes CAPABILITIES.SPEED: 100 Mb/s CAPABILITIES.IS-SOFTWARE: no WIRED-PROPERTIES.CARRIER: on CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{0} CONNECTIONS.AVAILABLE-CONNECTIONS[1]: d0a6c4d6-510a-325c-8465-361e2f13261b | Wired connection 1 IP4.ADDRESS[1]: 192.168.50.5/24 IP4.GATEWAY: 192.168.50.1 IP4.ROUTE[1]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000 IP4.DNS[1]: 192.168.50.1 DHCP4.OPTION[1]: requested_subnet_mask = 1 DHCP4.OPTION[2]: requested_rfc3442_classless_static_routes = 1 DHCP4.OPTION[3]: subnet_mask = 255.255.255.0 DHCP4.OPTION[4]: domain_name_servers = 192.168.50.1 DHCP4.OPTION[5]: ip_address = 192.168.50.5 DHCP4.OPTION[6]: requested_static_routes = 1 DHCP4.OPTION[7]: dhcp_server_identifier = 192.168.50.1 DHCP4.OPTION[8]: requested_time_offset = 1 DHCP4.OPTION[9]: broadcast_address = 192.168.50.255 DHCP4.OPTION[10]: requested_interface_mtu = 1 DHCP4.OPTION[11]: dhcp_rebinding_time = 75600 DHCP4.OPTION[12]: requested_domain_name_servers = 1 DHCP4.OPTION[13]: dhcp_message_type = 5 DHCP4.OPTION[14]: requested_broadcast_address = 1 DHCP4.OPTION[15]: routers = 192.168.50.1 DHCP4.OPTION[16]: wpad = a DHCP4.OPTION[17]: dhcp_renewal_time = 43200 DHCP4.OPTION[18]: requested_domain_name = 1 DHCP4.OPTION[19]: requested_routers = 1 DHCP4.OPTION[20]: expiry = 1497766543 DHCP4.OPTION[21]: requested_wpad = 1 DHCP4.OPTION[22]: host_name = OMEN15 DHCP4.OPTION[23]: requested_netbios_scope = 1 DHCP4.OPTION[24]: requested_ms_classless_static_routes = 1 DHCP4.OPTION[25]: requested_netbios_name_servers = 1 DHCP4.OPTION[26]: network_number = 192.168.50.0 DHCP4.OPTION[27]: requested_domain_search = 1 DHCP4.OPTION[28]: requested_ntp_servers = 1 DHCP4.OPTION[29]: next_server = 192.168.50.1 DHCP4.OPTION[30]: requested_host_name = 1 DHCP4.OPTION[31]: dhcp_lease_time = 86400 IP6.ADDRESS[1]: fe80::ef4:dc54:7aa3:546/64 IP6.GATEWAY: ##### NetworkManager.state ############## [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true ##### NetworkManager.conf ############### [main] plugins=ifupdown,keyfile [ifupdown] managed=false ##### NetworkManager profiles ########### [[/etc/NetworkManager/system-connections/mac's MacBook Pro]] (600 root) [connection] id=mac's MacBook Pro | type=wifi | permissions= [wifi] mac-address= | mac-address-blacklist= | ssid=mac's MacBook Pro [ipv4] method=auto [ipv6] method=auto [[/etc/NetworkManager/system-connections/9527]] (600 root) [connection] id=9527 | type=wifi | permissions= [wifi] mac-address= | mac-address-blacklist= | ssid=9527 [ipv4] method=auto [ipv6] method=auto [[/etc/NetworkManager/system-connections/Connectify-9999]] (600 root) [connection] id=Connectify-9999 | type=wifi | permissions= [wifi] mac-address= | mac-address-blacklist= | ssid=Connectify-9999 [ipv4] method=auto [ipv6] method=auto ##### iw reg get ######################## Region: Asia/Shanghai (based on set time zone) global country 00: DFS-UNSET (2402 - 2472 @ 40), (6, 20), (N/A) (2457 - 2482 @ 20), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN (2474 - 2494 @ 20), (6, 20), (N/A), NO-OFDM, PASSIVE-SCAN (5170 - 5250 @ 80), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN (5250 - 5330 @ 80), (6, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN (5490 - 5730 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN (5735 - 5835 @ 80), (6, 20), (N/A), PASSIVE-SCAN (57240 - 63720 @ 2160), (N/A, 0), (N/A) ##### iwlist channels ################### enp3s0 no frequency information. lo no frequency information. ##### iwlist scan ####################### enp3s0 Interface doesn't support scanning. lo Interface doesn't support scanning. ##### module infos ###################### ##### module parameters ################# ##### /etc/modules ###################### ##### modprobe options ################## [/etc/modprobe.d/blacklist-ath_pci.conf] blacklist ath_pci [/etc/modprobe.d/blacklist.conf] blacklist evbug blacklist usbmouse blacklist usbkbd blacklist eepro100 blacklist de4x5 blacklist eth1394 blacklist snd_intel8x0m blacklist snd_aw2 blacklist i2c_i801 blacklist prism54 blacklist bcm43xx blacklist garmin_gps blacklist asus_acpi blacklist snd_pcsp blacklist pcspkr blacklist amd76x_edac [/etc/modprobe.d/blacklist-rare-network.conf] alias net-pf-3 off alias net-pf-6 off alias net-pf-9 off alias net-pf-11 off alias net-pf-12 off alias net-pf-19 off alias net-pf-21 off alias net-pf-36 off [/etc/modprobe.d/intel-microcode-blacklist.conf] blacklist microcode [/etc/modprobe.d/iwlwifi.conf] remove iwlwifi \ (/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \ && /sbin/modprobe -r mac80211 [/etc/modprobe.d/mlx4.conf] softdep mlx4_core post: mlx4_en ##### rc.local ########################## grep: /etc/rc.local: No such file or directory ##### pm-utils ########################## ##### udev rules ######################## ##### dmesg ############################# [ 5.520481] Bluetooth: hci0: rtl: examining hci_ver=07 hci_rev=000b lmp_ver=07 lmp_subver=8822 [ 5.520482] Bluetooth: hci0: rtl: loading rtl_bt/rtl8822b_config.bin [ 5.543562] Bluetooth: hci0: rtl: loading rtl_bt/rtl8822b_fw.bin [ 7.556142] IPv6: ADDRCONF(NETDEV_UP): enp3s0: link is not ready [ 7.576972] r8169 0000:03:00.0 enp3s0: link down [ 7.577052] IPv6: ADDRCONF(NETDEV_UP): enp3s0: link is not ready [ 7.585025] r8169 0000:03:00.0 enp3s0: link down [ 15.054434] r8169 0000:03:00.0 enp3s0: link up [ 15.054442] IPv6: ADDRCONF(NETDEV_CHANGE): enp3s0: link becomes ready ########## wireless info END ############ 

Answer 1

我刚刚完成这项工作，所有这些都相当容易（谷歌搜索等）

1. 使用驱动程序代码安装最新的4.14内核（根据此处的说明）

    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14/linux-headers-4.14.0-041400_4.14.0-041400.201711122031_all.deb wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14/linux-headers-4.14.0-041400-generic_4.14.0-041400.201711122031_amd64.deb wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14/linux-image-4.14.0-041400-generic_4.14.0-041400.201711122031_amd64.deb sudo dpkg -i linux*.deb 

2. 从这里下载rtl8822befw.bin固件文件。

3. 将其保存在/lib/firmware/rtlwifi 。 请注意，较新的发行版可能已在此处提供此文件。

4. 重启。

请享用

请注意，此驱动程序目前仍处于暂存状态，因此请自行承担风险！

Answer 2

更新了18.04的答案

这里接受的解决方案已经过时了Ubuntu 18.04 – rtl8822be应该是开箱即用的。

• 在安装过程中，Ubuntu应检测您拥有的Wifi卡并为其安装正确的驱动程序，但要在Ubuntu 18.04上搜索任何其他可用的驱动程序，请转到“ 软件和更新”程序并单击“ 其他驱动程序”选项卡。

（可以通过单击桌面左上角的“ 活动 ”找到“软件和更新”。在搜索框中键入’ s ‘应该足以显示可用的相关程序）

• 另一个偶然发生的“怪癖”是安全启动遇到驱动程序签名问题并阻止加载。

您可以通过检查设备的BIOS设置来确保禁用安全启动（通常通过按制造商选择的特定键来访问，例如当您打开计算机时使用f2或esc ，但Grub菜单也允许您选择’ 系统设置 ‘以查看您的选项）。

• 在少数情况下，软件或硬件块可能会阻止Wifi连接。 您可以通过在终端中输入rfkill list来检查这一点。

如果您仍然遇到问题，可以在此处找到一个很好的故障排除指南： https ： //help.ubuntu.com/stable/ubuntu-help/net-wireless-troubleshooting.html.en

Answer 3

我可以确认@ user776895 s anwser在我的机器上修复了这个问题。 非常感谢!!

但有一点，手动升级内核会导致Ubuntu启动菜单中出现新条目吗？ 根据这个页面

wget linux-headers.deb ....
wget linxu-image.deb 。

然后，可以通过在终端中执行以下操作来同时安装所有包：

sudo dpkg -i *.deb

当此过程完成时，您的引导菜单上应该有一个表示上游内核的新条目（如果您的引导菜单未显示，则在引导时按Shift键）。 这将显示为这样的条目：

Ubuntu Trusty，内核xxx.xxxx-generic

我使用ukuu并且可以确认我的grub2菜单很好（没看到新条目）

值得一提的是
linux-firmware 1.161不包含所需的固件，所以不要费心去尝试