为什么我这个电脑没有安装无线网卡， Arch Linux 却能扫到无线网络？

274 天前
 nozer

我真的纳闷了。

主板：MSI B360m

没有安装无线网卡，就是主板自带的：Intel I219-V 有线网卡。

但是！！！！如图，为什么我的 Arch 居然支持无线，而且还能扫到附近的真实 wifi ？

我电脑装了 win11 、hackintosh ventura 、archlinux 。win 和 hackintosh 都不支持无线，但是 Arch 就可以？ 什么原理？

4296 次点击
所在节点    Linux
52 条回复
slrey
274 天前
你这有点玄学了。ip 或者 ifconfig 看看硬件？
ho121
274 天前
只能说明你的设备是有 wifi 网卡的
nozer
274 天前
ip addr

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 noprefixroute
valid_lft forever preferred_lft forever
2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 00:d8:61:8b:2a:e9 brd ff:ff:ff:ff:ff:ff
altname enp0s31f6
inet 192.168.2.10/24 brd 192.168.2.255 scope global noprefixroute eno1
valid_lft forever preferred_lft forever
inet6 fe80::bf6b:bced:af2f:4913/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: wlp0s20f0u1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether fa:36:46:25:21:23 brd ff:ff:ff:ff:ff:ff permaddr 6c:5d:3a:10:89:15


～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～

sudo lspci


00:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 07)
00:01.0 PCI bridge: Intel Corporation 6th-10th Gen Core Processor PCIe Controller (x16) (rev 07)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10)
00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10)
00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10)
00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10)
00:17.0 SATA controller: Intel Corporation Cannon Lake PCH SATA AHCI Controller (rev 10)
00:1b.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #21 (rev f0)
00:1d.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #9 (rev f0)
00:1f.0 ISA bridge: Intel Corporation Device a308 (rev 10)
00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10)
00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10)
00:1f.5 Serial bus controller: Intel Corporation Cannon Lake PCH SPI Controller (rev 10)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (7) I219-V (rev 10)
01:00.0 VGA compatible controller: NVIDIA Corporation GA104 [GeForce RTX 3070 Ti] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GA104 High Definition Audio Controller (rev a1)
02:00.0 Non-Volatile memory controller: MAXIO Technology (Hangzhou) Ltd. NVMe SSD Controller MAP1001 (rev 01)
03:00.0 Non-Volatile memory controller: INNOGRIT Corporation Device 5216 (rev 01)
nozer
274 天前
@ho121 可是，别的操作系统都不支持无线？
nozer
274 天前
我查了 intel 规格，没说支持有线呐： https://www.intel.cn/content/www/cn/zh/products/sku/82186/intel-ethernet-connection-i219v/specifications.html

我真的纳闷。
LxnChan
274 天前
wlp0s20f0u1 应该就是无线网卡，查了一下厂商是 Microsoft ，很奇怪，坐等个结果，有结果了踢我一下
NessajCN
274 天前
lspci -k 瞅一眼呗
nozer
274 天前
@NessajCN

sudo lspci -k

0:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 07)
DeviceName: Onboard - Other
Subsystem: Micro-Star International Co., Ltd. [MSI] 8th Gen Core Processor Host Bridge/DRAM Registers
Kernel driver in use: skl_uncore
lspci: Unable to load libkmod resources: error -2
00:01.0 PCI bridge: Intel Corporation 6th-10th Gen Core Processor PCIe Controller (x16) (rev 07)
Subsystem: Micro-Star International Co., Ltd. [MSI] 6th-10th Gen Core Processor PCIe Controller (x16)
Kernel driver in use: pcieport
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
DeviceName: Onboard - Other
Subsystem: Micro-Star International Co., Ltd. [MSI] Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10)
DeviceName: Onboard - Other
Subsystem: Micro-Star International Co., Ltd. [MSI] Cannon Lake PCH Thermal Controller
Kernel driver in use: intel_pch_thermal
00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10)
DeviceName: Onboard - Other
Subsystem: Micro-Star International Co., Ltd. [MSI] Cannon Lake PCH USB 3.1 xHCI Host Controller
Kernel driver in use: xhci_hcd
00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10)
DeviceName: Onboard - Other
Subsystem: Intel Corporation Cannon Lake PCH Shared SRAM
00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10)
DeviceName: Onboard - Other
Subsystem: Micro-Star International Co., Ltd. [MSI] Cannon Lake PCH HECI Controller
Kernel driver in use: mei_me
00:17.0 SATA controller: Intel Corporation Cannon Lake PCH SATA AHCI Controller (rev 10)
DeviceName: Onboard - SATA
Subsystem: Micro-Star International Co., Ltd. [MSI] Cannon Lake PCH SATA AHCI Controller
Kernel driver in use: ahci
00:1b.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #21 (rev f0)
Subsystem: Intel Corporation Cannon Lake PCH PCI Express Root Port
Kernel driver in use: pcieport
00:1d.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #9 (rev f0)
Subsystem: Micro-Star International Co., Ltd. [MSI] Cannon Lake PCH PCI Express Root Port
Kernel driver in use: pcieport
00:1f.0 ISA bridge: Intel Corporation Device a308 (rev 10)
DeviceName: Onboard - Other
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7b23
00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10)
DeviceName: Onboard - Sound
Subsystem: Micro-Star International Co., Ltd. [MSI] Cannon Lake PCH cAVS
Kernel driver in use: snd_hda_intel
00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10)
DeviceName: Onboard - Other
Subsystem: Micro-Star International Co., Ltd. [MSI] Cannon Lake PCH SMBus Controller
Kernel driver in use: i801_smbus
00:1f.5 Serial bus controller: Intel Corporation Cannon Lake PCH SPI Controller (rev 10)
DeviceName: Onboard - Other
Subsystem: Micro-Star International Co., Ltd. [MSI] Cannon Lake PCH SPI Controller
Kernel driver in use: intel-spi
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (7) I219-V (rev 10)
DeviceName: Onboard - Ethernet
Subsystem: Micro-Star International Co., Ltd. [MSI] Ethernet Connection (7) I219-V
Kernel driver in use: e1000e
01:00.0 VGA compatible controller: NVIDIA Corporation GA104 [GeForce RTX 3070 Ti] (rev a1)
Subsystem: Micro-Star International Co., Ltd. [MSI] GA104 [GeForce RTX 3070 Ti]
Kernel driver in use: nvidia
01:00.1 Audio device: NVIDIA Corporation GA104 High Definition Audio Controller (rev a1)
Subsystem: Micro-Star International Co., Ltd. [MSI] GA104 High Definition Audio Controller
Kernel driver in use: snd_hda_intel
02:00.0 Non-Volatile memory controller: MAXIO Technology (Hangzhou) Ltd. NVMe SSD Controller MAP1001 (rev 01)
Subsystem: MAXIO Technology (Hangzhou) Ltd. NVMe SSD Controller MAP1001
Kernel driver in use: nvme
03:00.0 Non-Volatile memory controller: INNOGRIT Corporation Device 5216 (rev 01)
Subsystem: INNOGRIT Corporation Device 5216
Kernel driver in use: nvme
nozer
274 天前
![f9412f4e9965001a3da8cfb9ca2acfb3.png]( https://i.miji.bid/2023/08/08/f9412f4e9965001a3da8cfb9ca2acfb3.png)
ho121
274 天前
@nozer 别的系统没装驱动吧
choury
274 天前
ls /sys/class/net/wlp0s20f0u1/ -lh
ls /sys/class/net/wlp0s20f0u1/device/ -lh
看下这两个命令
slrey
274 天前
@LxnChan 我也查了，不会是 op 插了个无线手柄或鼠标接收器之类的吧？
nozer
274 天前
@choury

https://i.miji.bid/2023/08/08/2514a2afa78d0f2a8c524b53482698b4.png

ls /sys/class/net/wlp0s20f0u1/ -lh
总计 0
-r--r--r-- 1 root root 4.0K 8 月 8 日 14:09 addr_assign_type
-r--r--r-- 1 root root 4.0K 8 月 8 日 14:09 address
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 addr_len
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 broadcast
-rw-r--r-- 1 root root 4.0K 8 月 8 日 17:26 carrier
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 carrier_changes
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 carrier_down_count
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 carrier_up_count
lrwxrwxrwx 1 root root 0 8 月 8 日 14:09 device -> ../../../1-1:1.0
-r--r--r-- 1 root root 4.0K 8 月 8 日 14:09 dev_id
-r--r--r-- 1 root root 4.0K 8 月 8 日 14:09 dev_port
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 dormant
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 duplex
-rw-r--r-- 1 root root 4.0K 8 月 8 日 17:26 flags
-rw-r--r-- 1 root root 4.0K 8 月 8 日 17:26 gro_flush_timeout
-rw-r--r-- 1 root root 4.0K 8 月 8 日 17:26 ifalias
-r--r--r-- 1 root root 4.0K 8 月 8 日 14:09 ifindex
-r--r--r-- 1 root root 4.0K 8 月 8 日 14:09 iflink
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 link_mode
-rw-r--r-- 1 root root 4.0K 8 月 8 日 17:26 mtu
-r--r--r-- 1 root root 4.0K 8 月 8 日 14:09 name_assign_type
-rw-r--r-- 1 root root 4.0K 8 月 8 日 17:26 napi_defer_hard_irqs
-rw-r--r-- 1 root root 4.0K 8 月 8 日 17:26 netdev_group
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 operstate
lrwxrwxrwx 1 root root 0 8 月 8 日 14:09 phy80211 -> ../../ieee80211/phy0
-r--r--r-- 1 root root 4.0K 8 月 8 日 14:09 phys_port_id
-r--r--r-- 1 root root 4.0K 8 月 8 日 14:09 phys_port_name
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 phys_switch_id
drwxr-xr-x 2 root root 0 8 月 8 日 16:36 power
-rw-r--r-- 1 root root 4.0K 8 月 8 日 17:26 proto_down
drwxr-xr-x 4 root root 0 8 月 8 日 16:36 queues
-r--r--r-- 1 root root 4.0K 8 月 8 日 14:12 speed
drwxr-xr-x 2 root root 0 8 月 8 日 16:36 statistics
lrwxrwxrwx 1 root root 0 8 月 8 日 14:09 subsystem -> ../../../../../../../../class/net
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 testing
-rw-r--r-- 1 root root 4.0K 8 月 8 日 17:26 threaded
-rw-r--r-- 1 root root 4.0K 8 月 8 日 17:26 tx_queue_len
-r--r--r-- 1 root root 4.0K 8 月 8 日 14:09 type
-rw-r--r-- 1 root root 4.0K 8 月 8 日 14:09 uevent
drwxr-xr-x 2 root root 0 8 月 8 日 14:12 wireless

～～～～～～～～～～～～～～～～～～～～～～～

ls /sys/class/net/wlp0s20f0u1/device/ -lh

-rw-r--r-- 1 root root 4.0K 8 月 8 日 17:26 authorized
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 bAlternateSetting
-r--r--r-- 1 root root 4.0K 8 月 8 日 14:09 bInterfaceClass
-r--r--r-- 1 root root 4.0K 8 月 8 日 14:09 bInterfaceNumber
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 bInterfaceProtocol
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 bInterfaceSubClass
-r--r--r-- 1 root root 4.0K 8 月 8 日 14:09 bNumEndpoints
lrwxrwxrwx 1 root root 0 8 月 8 日 14:09 driver -> ../../../../../../bus/usb/drivers/mt76x2u
drwxr-xr-x 3 root root 0 8 月 8 日 16:36 ep_04
drwxr-xr-x 3 root root 0 8 月 8 日 16:36 ep_05
drwxr-xr-x 3 root root 0 8 月 8 日 16:36 ep_06
drwxr-xr-x 3 root root 0 8 月 8 日 16:36 ep_07
drwxr-xr-x 3 root root 0 8 月 8 日 16:36 ep_08
drwxr-xr-x 3 root root 0 8 月 8 日 16:36 ep_09
drwxr-xr-x 3 root root 0 8 月 8 日 16:36 ep_84
drwxr-xr-x 3 root root 0 8 月 8 日 16:36 ep_85
lrwxrwxrwx 1 root root 0 8 月 8 日 17:26 firmware_node -> ../../../../../LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:4c/device:4d/device:4e
drwxr-xr-x 3 root root 0 8 月 8 日 14:09 ieee80211
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 interface
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 modalias
drwxr-xr-x 3 root root 0 8 月 8 日 14:09 net
drwxr-xr-x 2 root root 0 8 月 8 日 16:36 physical_location
drwxr-xr-x 2 root root 0 8 月 8 日 16:36 power
lrwxrwxrwx 1 root root 0 8 月 8 日 14:09 subsystem -> ../../../../../../bus/usb
-r--r--r-- 1 root root 4.0K 8 月 8 日 17:26 supports_autosuspend
-rw-r--r-- 1 root root 4.0K 8 月 8 日 14:09 uevent
weakbd
274 天前
@ho121 感觉是正解
nozer
274 天前
@slrey 哎，等等。。。 我确实插了一个 xbox 无线接收器。
NessajCN
274 天前
@nozer 你这插了 usb 网卡吧？ lsusb -v 看一眼
344457769
274 天前
Google 关键词：mt76x2u xbox
找到了这个文章：
https://blog.jeroenhd.nl/article/suddenly-wifi
ttvast
274 天前
mt76x2u
kokutou
274 天前
xbox 无线接收器确实是 mtk 的无线网卡魔改的。。。
nozer
274 天前
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 28da:1504 JZ JZ-KB01 （键盘）
Bus 001 Device 003: ID 046d:c08b Logitech, Inc. G502 SE HERO Gaming Mouse （鼠标）
Bus 001 Device 002: ID 045e:02fe Microsoft Corp. XBOX ACC （ Xbox 无线接收器）
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

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