2

No Wi-Fi Adapter Found after install ubuntu 22.04 LTS for Thinkbook 14+, cpu 12th alder lake 12700H

I tried sudo lshw -c network

It shows

*-network UNCLAIMED
    description: Network Controller
    product: Realtek Semiconductor Co., Ltd.
    vendor: Realtek Semiconductor Co., Ltd.
    physical id: 0
    bus info: pic@0000:2c:00.0
    version:00
    width: 64 bits
    clock: 33MHz
    capabilities: pm msi pciexpress cap_list
    configuration: latency=0
    resouces: ioport:3000(size=256) memory:5e300000-5e3fffff
*-network
    description: Ethernet interface
    product: Ethernet Connection (16) I219-V
......

I also tried sudo apt-get update,

sudo apt-get dist-upgrade
sudo rm /var/lib/NetworkManager/NetworkManager.state

and edit /etc/NetworkManager/NetworkManager.conf, change managed=true

It still failed.

I tried lspci -nnk | grep Net; rfkill list; and It shows below:

aaa@aaa-14-2022:~$ lspci -knn | grep Net -A3; rfkill list
2c:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b852]
    Subsystem: Lenovo Device [17aa:4853]
2d:00.0 SD Host controller [0805]: O2 Micro, Inc. SD/MMC Card Reader Controller [1217:8621] (rev 01)
    Subsystem: Lenovo SD/MMC Card Reader Controller [17aa:386b]
0: ideapad_wlan: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: ideapad_bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
2: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
weiwei wang
  • 21
  • 1
    Please [edit] your question and add output of lspci -knn | grep Net -A3; rfkill list terminal command. – Pilot6 May 15 '22 at 09:00
  • I think this is a duplicate question of https://askubuntu.com/questions/990378/wi-fi-not-working-on-lenovo-thinkpad-e570-realtek-rtl8821ce. – Joepie Es May 15 '22 at 13:24
  • Please specify your hardware better. There are many Thinkpad 14's. E, L, T, T14s, Gen 2, Gen 10 – HomerSimpson May 15 '22 at 13:39
  • Lenovo ThinkBook 14 G4+, i7-12700H, 16G, 512G, Wi-Fi 6. – weiwei wang May 16 '22 at 00:25
  • w@3w-14-2022:~$ lspci -knn | grep Net -A3; rfkill list 2c:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b852] Subsystem: Lenovo Device [17aa:4853] 2d:00.0 SD Host controller [0805]: O2 Micro, Inc. SD/MMC Card Reader Controller [1217:8621] (rev 01) Subsystem: Lenovo SD/MMC Card Reader Controller [17aa:386b] 0: ideapad_wlan: Wireless LAN Soft blocked: no Hard blocked: no 1: ideapad_bluetooth: Bluetooth Soft blocked: no Hard blocked: no 2: hci0: Bluetooth Soft blocked: no Hard blocked: no – weiwei wang May 16 '22 at 00:39

0 Answers0