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Exo Smart R9 F2445 未检测到 wifi 卡

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Exo Smart R9 F2445 未检测到 wifi 卡

我刚刚在预装 Windows 10 的 eExo Smart R9 F2445 笔记本电脑上安装了 Ubuntu 16.04。问题是 Ubuntu 找不到任何 wifi 网络。它甚至没有给我启用 wifi 的选项。蓝牙工作正常，但没有 wifi。

我尝试使用 ndiswrapper 安装 Windows 驱动程序，但它仍然不起作用。

我lshw -C network在终端上写道并输出：

 descripción: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       fabricante: Realtek Semiconductor Co., Ltd.
       id físico: 0
       información del bus: pci@0000:02:00.0
       nombre lógico: ens1
       versión: 0c
       serie: b0:25:aa:1f:fb:16
       tamaño: 100Mbit/s
       capacidad: 1Gbit/s
       anchura: 64 bits
       reloj: 33MHz
       capacidades: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuración: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168g-2_0.0.1 02/06/13 ip=192.168.1.36 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
       recursos: irq:310 ioport:e000(size=256) memoria:81200000-81200fff memoria:a0000000-a0003fff

结果lspci -knn：

00:00.0 Host bridge [0600]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register [8086:2280] (rev 35)
    Subsystem: Device [1d05:1012]
    Kernel driver in use: iosf_mbi_pci
00:02.0 VGA compatible controller [0300]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller [8086:22b1] (rev 35)
    DeviceName:  Onboard IGD
    Subsystem: Device [1d05:1012]
    Kernel driver in use: i915
    Kernel modules: i915
00:13.0 SATA controller [0106]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SATA Controller [8086:22a3] (rev 35)
    Subsystem: Device [1d05:1012]
    Kernel driver in use: ahci
    Kernel modules: ahci
00:14.0 USB controller [0c03]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller [8086:22b5] (rev 35)
    Subsystem: Device [1d05:1012]
    Kernel driver in use: xhci_hcd
00:1a.0 Encryption controller [1080]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine [8086:2298] (rev 35)
    Subsystem: Device [1d05:1012]
    Kernel driver in use: mei_txe
    Kernel modules: mei_txe
00:1b.0 Audio device [0403]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series High Definition Audio Controller [8086:2284] (rev 35)
    Subsystem: Device [1d05:1012]
    Kernel driver in use: snd_hda_intel
    Kernel modules: snd_hda_intel
00:1c.0 PCI bridge [0604]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #1 [8086:22c8] (rev 35)
    Kernel driver in use: pcieport
    Kernel modules: shpchp
00:1c.1 PCI bridge [0604]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #2 [8086:22ca] (rev 35)
    Kernel driver in use: pcieport
    Kernel modules: shpchp
00:1f.0 ISA bridge [0601]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU [8086:229c] (rev 35)
    Subsystem: Device [1d05:1012]
    Kernel driver in use: lpc_ich
    Kernel modules: lpc_ich
00:1f.3 SMBus [0c05]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx SMBus Controller [8086:2292] (rev 35)
    Subsystem: Device [1d05:1012]
    Kernel modules: i2c_i801
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
    Subsystem: Device [1d05:1012]
    Kernel driver in use: r8169
    Kernel modules: r8169

$lsusb: 

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0bda:b720 Realtek Semiconductor Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

答案1

您的无线设备是这样的：

0bda:b720 瑞昱半导体公司

它使用驱动程序 rtl8723bu。我将提出一种安装驱动程序的方法，如果成功，则对其进行一些修改，以避免每次内核升级后重新编译驱动程序。

请打开终端并执行：

sudo apt-get update
sudo apt-get install git
git clone https://github.com/lwfinger/rtl8723bu.git
cd rtl8723bu
nano Makefile

找到大约第 21 行的内容：

EXTRA_CFLAGS += -DCONFIG_CONCURRENT_MODE

用符号 # 将其注释掉，现在内容如下：

#EXTRA_CFLAGS += -DCONFIG_CONCURRENT_MODE

保存（Ctrl+o 然后按 Enter）并关闭（Ctrl+x）文本编辑器。

现在继续：

make
sudo make install
sudo modprobe 8723bu

你的无线网络正常吗？

编辑：您将只为当前正在运行的内核编译驱动程序。当 Update Manager 在请求重启后安装较新的内核版本（也称为 linux-image）时，请重新编译：

cd rtl8723bu
make clean
make
sudo make install 
sudo modprobe 8723bu

请保留该文件和这些说明。

编辑2：要使模块在启动时自动加载，请执行以下操作：

echo 8723bu | sudo tee -a /etc/modules

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