A lista de conexões Wi-Fi parece isso
rfkill list all dá
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
Portanto, não é o problema de bloqueio de Wi-Fi que outros estão tendo, suponho.
iwconfig dá
lo no wireless extensions.
eth0 no wireless extensions.
sudo lshw -class network dá
*-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
Obrigado por qualquer ajuda e conselhos!
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Atualização:
lspci -knn | grep Net -A3; uname -a dá
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