Wi-Fi не работает на Ubuntu 14.04 Lenovo Legion Y520

Список подключений Wi-Fi выглядит следующим образом
rfkill list all дает

0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

Так что это не проблема жесткой блокировки Wi-Fi, что другие, я полагаю.iwconfig дает

lo        no wireless extensions.

eth0      no wireless extensions.

sudo lshw -class network дает

  *-network UNCLAIMED     
       description: Network controller
       product: Qualcomm Atheros
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:03:00.0
       version: 31
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress cap_list
       configuration: latency=0
       resources: memory:a4000000-a41fffff
  *-network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: eth0
       version: 10
       serial: 54:e1:ad:31:eb:7c
       size: 100Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168g-3_0.0.1 04/23/13 ip=129.97.141.171 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
       resources: irq:129 ioport:3000(size=256) memory:a4304000-a4304fff memory:a4300000-a4303fff

Спасибо за любую помощь и совет!

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Обновить:
lspci -knn | grep Net -A3; uname -a дает

03:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0042] (rev 31)
    Subsystem: Lenovo Device [17aa:0901]
04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10)
    Subsystem: Lenovo Device [17aa:3884]
Linux XXXXXX-Lenovo-Y520-15IKBN 4.2.0-42-generic #49~14.04.1-Ubuntu SMP Wed Jun 29 20:22:11 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux