我有一台新笔记本电脑，上面安装了 Ubuntu 18.04。该笔记本电脑配有 Realtek RTL8111/8168/8411 以太网/wifi 卡。我无法检测或连接到任何 wifi 网络。我已插入一个单独的 USB wifi 设备，工作正常。
我尝试安装最新的驱动程序（sudo apt-get install r8168-dkms）但没有成功。
网络接口显示为关闭，我无法将其启动。
$ lshw -C network
WARNING: you should run this program as super-user.
*-network UNCLAIMED
description: Network controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:07:00.0
version: 1a
width: 64 bits
clock: 33MHz
capabilities: cap_list
configuration: latency=0
resources: memory:a4300000-a4303fff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0.1
bus info: pci@0000:08:00.1
logical name: enp8s0f1
version: 12
serial: 80:fa:5b:69:e3:c6
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8168 driverversion=8.045.08-NAPI duplex=half latency=0 link=no multicast=yes port=twisted pair speed=10Mbit/s
resources: irq:129 ioport:3000(size=256) memory:a4204000-a4204fff memory:a4200000-a4203fff
-
$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 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: enp8s0f1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether 80:fa:5b:69:e3:c6 brd ff:ff:ff:ff:ff:ff
-
这是我的默认网络接口
cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
我尝试添加接口并重新启动网络管理器。
cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto enp8s0f1
iface enp8s0f1 inet dhcp
但笔记本电脑网络管理器在此配置中无法重新启动。
这是驱动程序安装：
$ sudo apt-get install r8168-dkms
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed
r8168-dkms
0 to upgrade, 1 to newly install, 0 to remove and 4 not to upgrade.
Need to get 0 B/94.9 kB of archives.
After this operation, 1,224 kB of additional disk space will be used.
Selecting previously unselected package r8168-dkms.
(Reading database ... 149279 files and directories currently installed.)
Preparing to unpack .../r8168-dkms_8.045.08-2_all.deb ...
Unpacking r8168-dkms (8.045.08-2) ...
Setting up r8168-dkms (8.045.08-2) ...
Loading new r8168-8.045.08 DKMS files...
Building for 4.15.0-65-generic
Building initial module for 4.15.0-65-generic
Secure Boot not enabled on this system.
Done.
r8168:
Running module version sanity check.
- Original module
- No original module exists within this kernel
- Installation
- Installing to /lib/modules/4.15.0-65-generic/updates/dkms/
depmod...
Backing up initrd.img-4.15.0-65-generic to /boot/initrd.img-4.15.0-65-generic.old-dkms
Making new initrd.img-4.15.0-65-generic
(If next boot fails, revert to initrd.img-4.15.0-65-generic.old-dkms image)
update-initramfs.....
DKMS: install completed.
任何想法或帮助表示赞赏。
更新：我也刚刚尝试从源代码构建最新的驱动程序 https://github.com/mtorromeo/r8168
安装正常，但没有任何变化
$ sudo ethtool -i enp8s0f1
driver: r8168
version: 8.047.04-NAPI
firmware-version:
expansion-rom-version:
bus-info: 0000:08:00.1
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no
-
$ lspci -knn | grep Net -A3
07:00.0 Network controller [0280]: Intel Corporation Device [8086:2723] (rev 1a)
Subsystem: Intel Corporation Device [8086:0084]
08:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8411B PCI Express Card Reader [10ec:5287] (rev 01)
Subsystem: CLEVO/KAPOK Computer RTL8411B PCI Express Card Reader [1558:8552]
-
$uname -a
Linux XXX-NH50-70RH 4.15.0-65-generic #74-Ubuntu SMP Tue Sep 17 17:06:04 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
答案1
您的 wifi 卡是 Intel Wi-Fi 6 AX200 。您需要将内核升级到 5.1。
支持以下设备（自内核版本起）：
Wi-Fi 6产品
Intel® Wi-Fi 6 AX200 (5.1)
要升级内核，您可以使用ukuu工具：
sudo add-apt-repository ppa:teejee2008/ppa
sudo apt install ukuu
用于ukuu --list列出可用的内核，请参阅ukuu --help。
答案2
由于其他驱动程序（可能是 Nvidia）与内核 5.x 不兼容，我在升级内核时遇到了一些问题。最后我发现Intel发布了一个与我当前内核兼容的向后移植驱动程序。
sudo add-apt-repository ppa:canonical-hwe-team/pc-oem-dkms
sudo apt-get update
sudo apt-get install backport-iwlwifi-dkms
reboot