Lenovo Thinkpad가 Wi-Fi에 연결할 수 없습니다. 이더넷 연결은 양호하지만. 나는 다음을 설치했습니다 Ubuntu 20.04.1
:
Linux username-ThinkPad-E490 5.4.0-42-generic #46-Ubuntu SMP Fri Jul 10 00:24:02 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
노트북은 Lenovo Thinkpad E490
(신품)
나는 다음과 같은 것들을 시도했습니다:
$ ip address
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback ...
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether ...
3: wlp5s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether ...
$ lspci -kv
05:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter (rev ff) (prog-if ff)
!!! Unknown header type 7f
Kernel driver in use: rtw_pci
Kernel modules: rtwpci
$ sudo modprobe 8822be
modprobe: FATAL: Module 8822be not found in directory /lib/modules/5.4.0-42-generic
$ ls /lib/firmware/rtlwifi | grep rtl8822
rtl8822befw.bin
무슨 일이 일어났는지 모르겠어요. 무슨 뜻인가요?!!!알 수 없는 헤더 유형 7f? 인터페이스가 나타나지 않는데 드라이버가 설치된 것 같습니다.
답변1
Lenovo Legion Y530: Ubuntu 18.04 LTE에서도 동일한 문제가 발생했습니다.
uname -r
5.4.0-42-generic
$ sudo lspci -v
07:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter (rev ff) (prog-if ff)
!!! Unknown header type 7f
Kernel driver in use: r8822be
Kernel modules: rtwpci, r8822be
$ sudo modprobe 8822be
modprobe: FATAL: Module 8822be not found in directory /lib/modules/5.4.0-42-
generic