我这里有一台联想 Yoga 260，无法使用 Wifi。它就是这个型号：
$ sudo lshw
yoga
Beschreibung: Notebook
Produkt: 20FES3TE00 (LENOVO_MT_20FE_BU_Think_FM_ThinkPad Yoga 260)
Hersteller: LENOVO
Version: ThinkPad Yoga 260
Seriennummer: MP177CUL
Breite: 64 bits
Fähigkeiten: smbios-2.8 dmi-2.8 smp vsyscall32
Konfiguration: administrator_password=disabled chassis=notebook family=ThinkPad Yoga 260 power-on_password=disabled sku=LENOVO_MT_20FE_BU_Think_FM_ThinkPad Yoga 260 uuid=bd113a4c-21ee-11b2-a85c-c147ded6772c
我尝试寻找网络控制器，但看起来好像根本没有 wifi？
$ sudo lshw -c network
*-network
Beschreibung: Ethernet interface
Produkt: Ethernet Connection I219-LM
Hersteller: Intel Corporation
Physische ID: 1f.6
Bus-Informationen: pci@0000:00:1f.6
Logischer Name: enp0s31f6
Version: 21
Seriennummer: fc:45:96:66:cf:a4
Kapazität: 1Gbit/s
Breite: 32 bits
Takt: 33MHz
Fähigkeiten: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
Konfiguration: autonegotiation=on broadcast=yes driver=e1000e driverversion=5.15.0-79-generic firmware=0.13-4 latency=0 link=no multicast=yes port=twisted pair
Ressourcen: irq:125 memory:f1200000-f121ffff
*-network
Beschreibung: Ethernet interface
Physische ID: c
Bus-Informationen: usb@1:1
Logischer Name: usb0
Seriennummer: 8a:49:0c:5b:17:da
Fähigkeiten: ethernet physical
Konfiguration: autonegotiation=off broadcast=yes driver=rndis_host driverversion=5.15.0-79-generic duplex=half firmware=RNDIS device ip=192.168.111.43 link=yes multicast=yes port=twisted pair
抱歉，输出是德语的。但是，第二个网络控制器是我的手机通过 USB 网络共享连接的。但第一个控制器听起来像一个典型的以太网控制器，但 yoga 物理上没有以太网插头？！
也lspci | grep Network不会返回任何内容
askubuntu无线检测脚本的输出：https://justpaste.it/6llpp
和
$ ifconfig -a
enp0s31f6: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether fc:45:96:66:cf:a4 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 16 memory 0xf1200000-f1220000
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Lokale Schleife)
RX packets 10417 bytes 825839 (825.8 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 10417 bytes 825839 (825.8 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
usb0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.111.179 netmask 255.255.255.0 broadcast 192.168.111.255
inet6 fe80::f686:9ef1:6371:9e2b prefixlen 64 scopeid 0x20<link>
ether b2:ab:0d:9f:dd:cd txqueuelen 1000 (Ethernet)
RX packets 4317 bytes 4016788 (4.0 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2602 bytes 506687 (506.6 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
无线脚本的输出：
########## wireless info START ##########
Report from: 17 Aug 2023 09:32 CEST +0200
Booted last: 17 Aug 2023 00:00 CEST +0200
Script from: 25 Jan 2020 03:34 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 22.04.3 LTS
Release: 22.04
Codename: jammy
##### kernel ############################
Linux 5.15.0-79-generic #86-Ubuntu SMP Mon Jul 10 16:07:21 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Xubuntu
##### lspci #############################
00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection I219-LM [8086:156f] (rev 21)
Subsystem: Lenovo Ethernet Connection I219-LM [17aa:2233]
Kernel driver in use: e1000e
##### lsusb #############################
Bus 002 Device 005: ID 18d1:4ee3 Google Inc. Nexus/Pixel Device (tether)
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 138a:0090 Validity Sensors, Inc. VFS7500 Touch Fingerprint Sensor
Bus 001 Device 004: ID 13d3:5248 IMC Networks Integrated Camera
Bus 001 Device 003: ID 8087:0a2b Intel Corp. Bluetooth wireless interface
Bus 001 Device 006: ID 056a:5090 Wacom Co., Ltd Pen and multitouch sensor
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
1: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: no
Hard blocked: no
##### secure boot #######################
'mokutil' is not installed (package "mokutil").
##### lsmod #############################
wmi_bmof 16384 0
wmi 32768 2 wmi_bmof,think_lmi
##### interfaces ########################
##### ifconfig ##########################
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback <MAC address> brd <MAC address>
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: enp0s31f6: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether <MAC 'enp0s31f6' [IF1]> brd <MAC address>
6: usb0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000
link/ether <MAC 'usb0' [IF2]> brd <MAC address>
inet 192.168.111.179/24 brd 192.168.111.255 scope global dynamic noprefixroute usb0
valid_lft 3483sec preferred_lft 3483sec
inet6 fe80::f686:9ef1:6371:9e2b/64 scope link noprefixroute
valid_lft forever preferred_lft forever
##### iwconfig ##########################
lo no wireless extensions.
enp0s31f6 no wireless extensions.
usb0 no wireless extensions.
##### route #############################
default via 192.168.111.160 dev usb0 proto dhcp metric 100
169.254.0.0/16 dev usb0 scope link metric 1000
192.168.111.0/24 dev usb0 proto kernel scope link src 192.168.111.179 metric 100
##### resolv.conf #######################
[777 root '/etc/resolv.conf' -> '../run/systemd/resolve/stub-resolv.conf']
nameserver 127.0.0.53
options edns0 trust-ad
search .
##### network managers ##################
Installed:
NetworkManager
Running:
root 748 1 0 Aug15 ? 00:00:04 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: usb0
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.DBUS-PATH: /org/freedesktop/NetworkManager/Devices/6
GENERAL.VENDOR: Google Inc.
GENERAL.PRODUCT: Nexus/Pixel Device (tether)
GENERAL.DRIVER: rndis_host
GENERAL.DRIVER-VERSION: 5.15.0-79-generic
GENERAL.FIRMWARE-VERSION: RNDIS device
GENERAL.HWADDR: <MAC 'usb0' [IF2]>
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.IP4-CONNECTIVITY: 4 (full)
GENERAL.IP6-CONNECTIVITY: 4 (full)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:14.0/usb2/2-1/2-1:1.0/net/usb0
GENERAL.PATH: pci-0000:00:14.0-usb-0:1:1.0
GENERAL.IP-IFACE: usb0
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: Kabelgebundene Verbindung 2
GENERAL.CON-UUID: 9bd3c4c1-439e-3253-82d6-b618bebecd1e
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/4
GENERAL.METERED: yes (guessed)
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
CAPABILITIES.SRIOV: no
INTERFACE-FLAGS.UP: yes
INTERFACE-FLAGS.LOWER-UP: yes
INTERFACE-FLAGS.CARRIER: yes
INTERFACE-FLAGS.PROMISC: no
WIRED-PROPERTIES.CARRIER: on
IP4.ADDRESS[1]: 192.168.111.179/24
IP4.GATEWAY: 192.168.111.160
IP4.ROUTE[1]: dst = 192.168.111.0/24, nh = 0.0.0.0, mt = 100
IP4.ROUTE[2]: dst = 0.0.0.0/0, nh = 192.168.111.160, mt = 100
IP4.ROUTE[3]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]: 192.168.111.160
DHCP4.OPTION[1]: broadcast_address = 192.168.111.255
DHCP4.OPTION[2]: dhcp_lease_time = 3600
DHCP4.OPTION[3]: dhcp_server_identifier = 192.168.111.160
DHCP4.OPTION[4]: domain_name_servers = 192.168.111.160
DHCP4.OPTION[5]: expiry = 1692261014
DHCP4.OPTION[6]: host_name = yoga
DHCP4.OPTION[7]: ip_address = 192.168.111.179
DHCP4.OPTION[8]: next_server = 192.168.111.160
DHCP4.OPTION[9]: requested_broadcast_address = 1
DHCP4.OPTION[10]: requested_domain_name = 1
DHCP4.OPTION[11]: requested_domain_name_servers = 1
DHCP4.OPTION[12]: requested_domain_search = 1
DHCP4.OPTION[13]: requested_host_name = 1
DHCP4.OPTION[14]: requested_interface_mtu = 1
DHCP4.OPTION[15]: requested_ms_classless_static_routes = 1
DHCP4.OPTION[16]: requested_nis_domain = 1
DHCP4.OPTION[17]: requested_nis_servers = 1
DHCP4.OPTION[18]: requested_ntp_servers = 1
DHCP4.OPTION[19]: requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[20]: requested_root_path = 1
DHCP4.OPTION[21]: requested_routers = 1
DHCP4.OPTION[22]: requested_static_routes = 1
DHCP4.OPTION[23]: requested_subnet_mask = 1
DHCP4.OPTION[24]: requested_time_offset = 1
DHCP4.OPTION[25]: requested_wpad = 1
DHCP4.OPTION[26]: routers = 192.168.111.160
DHCP4.OPTION[27]: subnet_mask = 255.255.255.0
IP6.ADDRESS[1]: fe80::f686:9ef1:6371:9e2b/64
IP6.GATEWAY: --
IP6.ROUTE[1]: dst = fe80::/64, nh = ::, mt = 1024
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/5
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 9bd3c4c1-439e-3253-82d6-b618bebecd1e | Kabelgebundene Verbindung 2
GENERAL.DEVICE: enp0s31f6
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.DBUS-PATH: /org/freedesktop/NetworkManager/Devices/2
GENERAL.VENDOR: Intel Corporation
GENERAL.PRODUCT: Ethernet Connection I219-LM
GENERAL.DRIVER: e1000e
GENERAL.DRIVER-VERSION: 5.15.0-79-generic
GENERAL.FIRMWARE-VERSION: 0.13-4
GENERAL.HWADDR: <MAC 'enp0s31f6' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 2 (Device is now managed)
GENERAL.IP4-CONNECTIVITY: 1 (none)
GENERAL.IP6-CONNECTIVITY: 1 (none)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6
GENERAL.PATH: pci-0000:00:1f.6
GENERAL.IP-IFACE: --
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: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
CAPABILITIES.SRIOV: no
INTERFACE-FLAGS.UP: yes
INTERFACE-FLAGS.LOWER-UP: no
INTERFACE-FLAGS.CARRIER: no
INTERFACE-FLAGS.PROMISC: no
WIRED-PROPERTIES.CARRIER: off
IP4.GATEWAY: --
IP6.GATEWAY: --
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: --
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager config #############
[[/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf]]
[connection]
wifi.powersave = 3
[[/etc/NetworkManager/NetworkManager.conf]]
[main]
plugins=ifupdown,keyfile
[ifupdown]
managed=false
[device]
wifi.scan-rand-mac-address=no
[[/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf]]
[main]
dns=systemd-resolved
[[/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf]]
[keyfile]
unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma
[[/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf]]
[device-31-mac-addr-change]
match-device=driver:eagle_sdio,driver:wl
wifi.scan-rand-mac-address=no
##### NetworkManager profiles ###########
##### Netplan config ####################
[/etc/netplan/01-network-manager-all.yaml]
network:
version: 2
renderer: NetworkManager
##### iw reg get ########################
Region: Europe/Berlin (based on set time zone)
global
country 00: DFS-UNSET
(755 - 928 @ 2), (N/A, 20), (N/A), PASSIVE-SCAN
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 20), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, PASSIVE-SCAN
(5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN
(5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, PASSIVE-SCAN
(5735 - 5835 @ 80), (N/A, 20), (N/A), PASSIVE-SCAN
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
##### iwlist channels ###################
lo no frequency information.
enp0s31f6 no frequency information.
usb0 no frequency information.
##### iwlist scan #######################
lo Interface doesn't support scanning.
enp0s31f6 Interface doesn't support scanning.
usb0 Interface doesn't support scanning.
##### module infos ######################
##### module parameters #################
##### /etc/modules ######################
##### modprobe options ##################
[/etc/modprobe.d/amd64-microcode-blacklist.conf]
blacklist microcode
[/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 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
##### rc.local ##########################
grep: /etc/rc.local: No such file or directory
##### pm-utils ##########################
##### udev rules ########################
##### dmesg #############################
[12480.290761] rndis_host 1-1:1.0 usb0: unregister 'rndis_host' usb-0000:00:14.0-1, RNDIS device
[127859.375338] rndis_host 2-1:1.0 usb0: register 'rndis_host' at usb-0000:00:14.0-1, RNDIS device, <MAC address>
[127917.111312] rndis_host 2-1:1.0 usb0: unregister 'rndis_host' usb-0000:00:14.0-1, RNDIS device
[127917.467181] rndis_host 2-1:1.0 usb0: register 'rndis_host' at usb-0000:00:14.0-1, RNDIS device, <MAC address>
[127918.371410] rndis_host 2-1:1.0 usb0: unregister 'rndis_host' usb-0000:00:14.0-1, RNDIS device
[127918.716819] rndis_host 2-1:1.0 usb0: register 'rndis_host' at usb-0000:00:14.0-1, RNDIS device, <MAC 'usb0' [IF2]>
########## wireless info END ############
答案1
这一页2018 年声称无线功能正在运行。
因此你的设备要么有硬件交换机完全关闭 wifi 或不存在无线模块（因为物理上找不到 wifi）。
联想提供手册 下载。（显然需要德语版本）
执行后ip a应列出所有网络设备。无线适配器应如下所示：
4: wlp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether xxxx brd ff:ff:ff:ff:ff:ff
inet x.y.z/24 brd x.y.z.255 scope global dynamic noprefixroute wlp3s0
valid_lft 842064sec preferred_lft 842064sec
inet6 ffff::ffff:ffff:ffff:ffff/64 scope link noprefixroute
valid_lft forever preferred_lft forever
如果您没有 HW 开关，则可能是您的 UEFI 完全屏蔽了设备，或者无线硬件不是内置的（Yoga 手册应该会告诉您在哪里查找）
答案2
切换到较新的内核可能会重新调整计算机的最新驱动程序
在下周（8 月 10 日）正式发布 Ubuntu 22.04.3 点版本之前，Canonical 已向现有 LTS 用户发布了更新的内核以供安装。它反向移植了 Ubuntu 23.04“Lunar Lobster”中使用的 Linux 6.2 内核。
通常情况下，HWE 更新会在正式版本发布后推出。这次更新来得更早，这对 LTS 用户来说是个好消息，因为这意味着他们可以享受 Linux 6.2 中的所有新功能，而不必等待 ISO（他们不需要）发布。
要在 Ubuntu 22.04 LTS 上安装新内核，只需打开软件更新程序工具，检查更新，然后安装列出的更新。重新启动时（如果安装了多个内核），请务必选择 6.2 版本。
您也可以通过运行以下命令通过命令行进行更新：
sudo apt update && sudo apt full-upgrade 或 sudo apt dist-upgrade。