维修后(更换主板)和 BIOS 更新对于我的联想 yoga 2 pro,我无法再通过无线方式连接。该选项在之前存在的下拉列表中消失了:
在阅读了有关此问题的一些信息后,我查看了 BIOS,其中显示无线功能已启用:
而且我还检查了无线接口是否可用并且没有被阻止(硬件阻止是此笔记本电脑早期 Ubuntu 版本的一个问题):
elrudi@yoga:~$ rfkill list all
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
奇怪的是,尝试激活无线局域网接口出现错误:
elrudi@yoga:~$ ifconfig wlan0 up
wlan0: ERROR while getting interface flags: No such device
elrudi@yoga:~$
输出lspci -knn | grep Net -A2
为空。运行时lspci
输出如下:
elrudi@yoga:~$ lspci
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09)
00:04.0 Signal processing controller: Intel Corporation Device 0a03 (rev 09)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
00:1f.6 Signal processing controller: Intel Corporation 8 Series Thermal (rev 04)
elrudi@yoga:~$
sudo lshw -class network
仅显示以太网接口:
elrudi@yoga:~$ sudo lshw -class network
*-network
description: Ethernet interface
physical id: 3
logical name: enp0s20u2
serial: 02:64:70:6c:6a:06
capabilities: ethernet physical
configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.78 link=yes multicast=yes
输出如下lsusb
:
elrudi@yoga:~$ lsusb
Bus 001 Device 002: ID 8087:8000 Intel Corp.
Bus 001 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 011: ID 5986:0535 Acer, Inc
Bus 002 Device 012: ID 04f3:016f Elan Microelectronics Corp.
Bus 002 Device 007: ID 2047:0855 Texas Instruments Invensense Embedded MotionApp HID Sensor
Bus 002 Device 005: ID 8087:07dc Intel Corp.
Bus 002 Device 013: ID 22b8:2e24 Motorola PCS
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
elrudi@yoga:~$
至此,我认为我可以查看的内容以及我在网上提出的类似问题中找到的内容已经结束了。注销和登录没有效果,更改 BIOS 设置和rfkill
解除阻止接口(如上所示,没有被阻止)也没有效果。BIOS 中没有可关闭的“安全启动”选项(如其他一些帖子中所建议的那样)。
有什么建议吗?我可以去哪里查看?维修店告诉我他们更新了 BIOS,我想那里可能有一个设置需要更改。
谢谢!
PS 为了完整起见,另一个相关的 BIOS 页面。在此页面上,我尝试禁用“Lenovo 快速启动”选项(此处仍设置):
“安全”选项卡中有设置部分密码的选项(均未设置)