Problems with Qualcomm Atheros QCA6174 in Ubuntu
lspci | grep Qu
07:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32)
然后，下载网卡驱动，下载连接为：
https://mirrors.kernel.org/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.157_all.deb
下载完之后，按照如下的命令进行安装：
sudo dpkg -i linux-firmware_1.157_all.deb
安装完成后，会发现/lib/firmware/ath10k/文件下多了一个文件夹：QCA6174文件夹下有两个文件：
hw2.1和hw3.0
然而，此刻你还是无法上网，还需要做如下操作：
(1) Copy the files found here into the appropriate subfolders: https://github.com/kvalo/ath10k-firmware
(2) Note that the files named "firmware-4.bin_WLAN.RM.2.0-00180-QCARMSWPZ-1" in the hw3.0 subfolder and "firmware-5.bin_WLAN.RM.2.0-00180-QCARMSWPZ-1" in the hw2.1 subfolder should be renamed "firmware-4.bin" and "firmware-5.bin" respectively. (This was what was causing issues for me in the first place).
(3) copy board-2.bin to /lib/firmware/ath10k/hw3.0/
最后，使用命令：
sudo chmod 755 *.bin.
sudo reboot
最后，电脑可以连接无线网络，解决问题！