Ubuntu 16.04 LTS 上不显示 Wifi

Ubuntu 16.04 LTS 上不显示 Wifi

我知道这个问题之前有人问过并回答过这里这里,但我尝试了他们建议的解决方案,但没有成功。

问题正如所述 - wifi 网络列表未显示在 GUI 中,甚至没有打开/关闭 wifi 的选项。以前有时会显示,有时不会,在某些情况下它会随机断开与 wifi 网络的连接,并且不会再次显示它们。

在尝试修复这个问题时,我在某个地方找到了(我似乎无法再找到它)说明我应该使用这里修复了这个问题。我把文件复制到了/lib/firmware/ath10k/QCA6174,替换了那里的文件。我愚蠢地没有保存其他文件的副本,自从我替换了它们之后,wifi 就完全不显示了。

因此基本上这是两个相关的问题:

  1. ./QCA6174/hw2.1我在哪里可以找到和文件夹的原始文件./QCA6174/hw3.0?(这有必要吗)
  2. 如何永久解决这个 wifi 网络不显示或随机断开的问题?

以下是一些可能相关的信息:

左手边:

~$ sudo lshw -C network *-network
description: Ethernet interface product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:02:00.0 logical name: enp2s0 version: 08 serial: 50:7b:9d:cc:bc:da size: 10Mbit/s capacity: 100Mbit/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 autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8106e-2_0.0.1 04/23/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s resources: irq:45 ioport:3000(size=256) memory:c1004000-c1004fff memory:c1000000-c1003fff *-network description: Ethernet interface physical id: 3 logical name: bnep0 serial: 44:1c:a8:65:92:6c capabilities: ethernet physical configuration: broadcast=yes ip=192.168.44.206 multicast=yes

lspci:

~$ lspci -v ... 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 08) Subsystem: Lenovo RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller Flags: bus master, fast devsel, latency 0, IRQ 45 I/O ports at 3000 [size=256] Memory at c1004000 (64-bit, non-prefetchable) [size=4K] Memory at c1000000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: r8169 Kernel modules: r8169

rfkill:

~$ sudo rfkill list 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

配置:

~$ sudo iwconfig enp2s0 no wireless extensions. lo no wireless extensions. bnep0 no wireless extensions.

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