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I am using Ubuntu 16.04 in Acer Aspire ES1-522 alongside Windows 10.
Wifi works fine in Windows 10, but it is not working in Ubuntu. The output of lspci -k | grep -i wireless is :

02:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)
    Subsystem: Lite-On Communications Inc QCA9565 / AR9565 Wireless Network Adapter

It doesn't show any wifi network. I dont know is it true or not but it shows wifi network while i connect it to charging

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Could you please edit your question to include the output of the terminal command lspci -nnk | grep -A2 Network? Thanks. – David Foerster Sep 25 '16 at 10:20
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Though its weird, but i am going to answer my own question.

You don't need to install/remove any driver. Just goto /etc/modprobe.d/blacklist.conf open this file with root privileges and add line

blacklist acer_wmi

to the end of file. reboot and enjoy

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I would suggest creating a separate file /etc/modprobe.d/blacklist-acer.conf. It this case it will not be overwritten on updates and it will be easier to find why the module does not start. – Pilot6 Feb 22 '17 at 10:07

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