En primer lugar, lo siento si este hilo está duplicado con otro, pero no encontré una solución para el problema.
Así que compré una nueva computadora portátil (Lenovo Y520) y configuré el arranque dual Win10 con Ubuntu 16.04 y la conexión inalámbrica no funciona para ubuntu (LAN funciona).
ifconfig
enp4s0 Link encap:Ethernet HWaddr c8:5b:76:da:32:ba
inet addr:192.168.0.102 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::62bc:4b27:ec0f:1d9c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:18584 errors:0 dropped:0 overruns:0 frame:0
TX packets:12706 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:20071392 (20.0 MB) TX bytes:1500456 (1.5 MB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:1849 errors:0 dropped:0 overruns:0 frame:0
TX packets:1849 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:200236 (200.2 KB) TX bytes:200236 (200.2 KB)
.
iwconfig
wlp3s0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
enp4s0 no wireless extensions.
lo no wireless extensions.
Ejecuté algunos comandos que se encuentran en otros hilos.
sudo lshw -class network
*-network
description: Wireless interface
product: Intel Corporation
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 78
serial: 00:28:f8:69:15:13
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.8.14-040814-generic firmware=22.361476.0 latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:332 memory:a4200000-a4201fff
*-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: enp4s0
version: 10
serial: c8:5b:76:da:32:ba
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=192.168.0.102 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:322 ioport:4000(size=256) memory:a4104000-a4104fff memory:a4100000-a4103fff
.
rfkill list
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: yes
1: ideapad_bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: yes
2: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
.
lspci -nnk | grep 0280 -A2
03:00.0 Network controller [0280]: Intel Corporation Device [8086:24fd] (rev 78)
Subsystem: Intel Corporation Device [8086:1010]
Kernel driver in use: iwlwifi
Cosas que he probado y no funcionó.
* sudo rfkill unblock wifi
* Additional Drivers -> Not showing wifi driver
* restart network-manager service
* http://askubuntu.com/a/859263