Realtek RTL8723BE PCIe无线网络适配器无法在Ubuntu 16.10中运行
我已经在Hp Envy笔记本电脑上安装了Ubuntu 16.10，并且遇到了wifi连接问题。 wifi信号非常差，坐在wifi路由器旁边也会导致断线和弱信号，这似乎也会使我的电池耗电更快。 其他一些解决方案提到在Addition Drivers窗口中使用Realtek的专有驱动程序，但我看不到它在那里列出： –
$ lspci 00:00.0 Host bridge: Intel Corporation Skylake Host Bridge/DRAM Registers (rev 08) 00:02.0 VGA compatible controller: Intel Corporation HD Graphics 520 (rev 07) 00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 08) 00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21) 00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21) 00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21) 00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1) 00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1) 00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1) 00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1) 00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21) 00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21) 00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21) 01:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 940M] (rev a2) 02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader (rev 01) 03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 0a) 编辑1
按照@ Pilot6的回答，几分钟后信号电平下降。 以下是运行watch -n1 iwconfig输出。 离路由器4英尺。 链接质量为40 + / 70时，连接有效。
在终端中运行
sudo tee /etc/modprobe.d/rtl8723be.conf <<< "options rtl8723be ant_sel=1"
并重新启动。
如果它不起作用，请尝试使用ant_sel=2
这将设置正确的天线，并应修复不良信号问题。