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My laptop is Lenovo Yoga 910. I have Ubuntu installed however I cannot connect it to wireless network. Wifi just cannot be enabled. Also since this is an ultrabook it does not use ethernet. I am using dual OS and wifi is on and works fine on Windows 10. Is there any driver I should install? I am completely new to this, please be specific. Thank you.

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    Open terminal (CTRL + T) and enter lspci -nnk | grep -iA2 net Does this show a wireless interface and something next to kernel driver in use? Also check rfkill list all Does it show something blocked?
    – Jeremy31
    Nov 8, 2016 at 22:20
  • It shows Network controller [0280] qualcomm Atheros QCA6174 802.11ac Wireless network adapter [168c:003e] (rev 32)
    – 熙宸林
    Nov 8, 2016 at 22:34
  • subsystem lenovo QCA6174 802.11ac wireless newwork adapter 17aa:0827 kernel driver in use: ath10k_pci kernel modules: ath10k_pci
    – 熙宸林
    Nov 8, 2016 at 22:36
  • rfkill returns help; event; list [IDENTIFIER]; block [IDENTIFIER]; unblock IDENTIFIER where IDENTIFIER is the index no. of an rfkill switch or one of: <idx> all wifi wlan bluetooth uwb ultrawideband wimax wwan gps fm nfc
    – 熙宸林
    Nov 8, 2016 at 22:41
  • The command is rfkill list all not just rfkill Thanks and what is the result for dpkg -l | grep linux-firmware
    – Jeremy31
    Nov 8, 2016 at 22:52

1 Answer 1

Reset to default
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It seems that a kernel module is blocking wifi, so 

echo "blacklist ideapad-laptop" | sudo tee /etc/modprobe.d/ideapad-laptop.conf
Reboot and see if the hard blocks are gone

I would suggest filing a bug report at bugs.launchpad.net/ubuntu against package linux and then follow instructions

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  • This worked for me back can you explain in your answer what it does?
    – SARose
    Dec 21, 2016 at 19:08
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    The command keeps the ideapad-laptop module from loading. A year or so ago a change was made to the rfkill registers in BIOS of some Lenovo laptops/netbooks that falsely reported wifi as blocked with the ideapad-laptop module. You could file a bug report against linux as your issue may have been fixed with this commit in the upstream kernel development
    – Jeremy31
    Dec 21, 2016 at 22:25
  • Works on Lenovo Miix 720. There's a bug here: bugs.launchpad.net/ubuntu/+bug/1755094
    – arieltools
    Mar 12, 2018 at 6:51

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