为什么 没有wifi 呢 ？求指导

[刘晓康]

[astolia]

没驱动吧。用

代码： 全选

sudo lshw -C network

看看网卡是什么型号的。直接把输出结果复制粘贴上来就行，不用截图

[刘晓康]

*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: enp3s0f0
version: 0e
serial: e8:6a:64:2f:b2:26
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:54 ioport:3400(size=256) memory:c0914000-c0914fff memory:c0900000-c0903fff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:05:00.0
logical name: enp5s0
version: 10
serial: e8:6a:64:2f:b2:25
size: 100Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168g-3_0.0.1 04/23/13 ip=192.168.0.103 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:61 ioport:2000(size=256) memory:c0704000-c0704fff memory:c0700000-c0703fff

[astolia]

再用

代码： 全选

lspci -nn

和

代码： 全选

lsusb

看看结果

[刘晓康]

liuxiaokang@0520:~$ lspci -nn
00:00.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:15d0]
00:00.2 IOMMU [0806]: Advanced Micro Devices, Inc. [AMD] Device [1022:15d1]
00:01.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge [1022:1452]
00:01.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:15d3]
00:01.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:15d3]
00:01.4 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:15d3]
00:01.5 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:15d3]
00:01.6 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:15d3]
00:08.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge [1022:1452]
00:08.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:15db]
00:08.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:15dc]
00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller [1022:790b] (rev 61)
00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge [1022:790e] (rev 51)
00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:15e8]
00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:15e9]
00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:15ea]
00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:15eb]
00:18.4 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:15ec]
00:18.5 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:15ed]
00:18.6 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:15ee]
00:18.7 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:15ef]
01:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader [10ec:522a] (rev 01)
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter [10ec:b822]
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0e)
03:00.1 Serial controller [0700]: Realtek Semiconductor Co., Ltd. Device [10ec:816a] (rev 0e)
03:00.2 Serial controller [0700]: Realtek Semiconductor Co., Ltd. Device [10ec:816b] (rev 0e)
03:00.3 IPMI Interface [0c07]: Realtek Semiconductor Co., Ltd. Device [10ec:816c] (rev 0e)
03:00.4 USB controller [0c03]: Realtek Semiconductor Co., Ltd. Device [10ec:816d] (rev 0e)
04:00.0 Non-Volatile memory controller [0108]: SK hynix Device [1c5c:1327]
05:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10)
06:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] [1002:15dd] (rev d1)
06:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Device [1002:15de]
06:00.2 Encryption controller [1080]: Advanced Micro Devices, Inc. [AMD] Device [1022:15df]
06:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:15e0]
06:00.4 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:15e1]
06:00.6 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Device [1022:15e3]
07:00.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] [1022:7901] (rev 61)
liuxiaokang@0520:~$

[刘晓康]

liuxiaokang@0520:~$ lsusb
Bus 005 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 004 Device 006: ID 04f2:b604 Chicony Electronics Co., Ltd
Bus 004 Device 003: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 004 Device 004: ID 06cb:009a Synaptics, Inc.
Bus 004 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 17ef:6050 Lenovo
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

[astolia]

rtl8822be的网卡，18.04应该直接能支持了。
如果你装的是双系统，可能需要在windows下面把快速启动功能关掉
如果还不行，你用的thinkpad具体是什么型号的？

代码： 全选

dmesg | egrep -i '(net|rtl)'

的输出是什么

[刘晓康]

不是双系统的 ， thinkpad a485.

[刘晓康]

liuxiaokang@0520:~$ dmesg | egrep -i '(net|rtl)'
[ 0.057772] NET: Registered protocol family 16
[ 0.057868] audit: initializing netlink subsys (disabled)
[ 0.183317] NetLabel: Initializing
[ 0.183318] NetLabel: domain hash size = 128
[ 0.183318] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO
[ 0.183336] NetLabel: unlabeled traffic allowed by default
[ 0.211935] NET: Registered protocol family 2
[ 0.212974] NET: Registered protocol family 1
[ 0.212979] NET: Registered protocol family 44
[ 0.734085] NET: Registered protocol family 10
[ 0.739474] NET: Registered protocol family 17
[ 1.336914] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[ 1.409117] r8169 0000:03:00.0 eth0: RTL8168ep/8111ep, e8:6a:64:2f:b2:26, XID 50200800, IRQ 60
[ 1.409253] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[ 1.425273] r8169 0000:05:00.0 eth1: RTL8168g/8111g, e8:6a:64:2f:b2:25, XID 50900800, IRQ 62
[ 3.566249] NET: Registered protocol family 31
[ 3.656194] Bluetooth: hci0: rtl: examining hci_ver=07 hci_rev=000b lmp_ver=07 lmp_subver=8822
[ 3.656198] Bluetooth: hci0: rtl: loading rtl_bt/rtl8822b_config.bin
[ 3.656998] thinkpad_acpi: http://ibm-acpi.sf.net/
[ 3.657876] Bluetooth: hci0: rtl: loading rtl_bt/rtl8822b_fw.bin
[ 15.271168] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 15.589548] IPv6: ADDRCONF(NETDEV_UP): enp3s0f0: link is not ready
[ 15.693967] IPv6: ADDRCONF(NETDEV_UP): enp3s0f0: link is not ready
[ 15.700863] IPv6: ADDRCONF(NETDEV_UP): enp5s0: link is not ready
[ 15.750200] IPv6: ADDRCONF(NETDEV_UP): enp5s0: link is not ready
[ 17.359292] IPv6: ADDRCONF(NETDEV_CHANGE): enp5s0: link becomes ready
[ 22.026725] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 22.136124] Initializing XFRM netlink socket
[ 22.194587] IPv6: ADDRCONF(NETDEV_UP): docker0: link is not ready

[刘晓康]

因为老卡死， 为升级了下内核， 现在设置里面都没有无线管理的菜单了。

[astolia]

因为老卡死， 为升级了下内核， 现在设置里面都没有无线管理的菜单了。

你升级过bios没有？
最新版是1月3日发布的1.14 https://think.lenovo.com.cn/support/dri ... Pad%20A485
你没有装双系统，就用它的光盘版升级程序
如果升级了bios还是不行，可以试试ubuntu 18.10。不用安装，直接试用，看能不能用无线

[刘晓康]

好的 ， 多谢，多谢，多谢。