まず、このスレッドが別のスレッドと重複している場合は申し訳ありませんが、問題の解決策が見つかりませんでした。
そこで、新しいラップトップ（Lenovo Y520）を購入し、Ubuntu 16.04でデュアルブートWin10をセットアップしましたが、ubuntu（LAN機能）ではワイヤレスが機能しません。
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.
別のスレッドで見つかったいくつかのコマンドを実行しました。
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
私がテストし、うまくいかなかったもの。
* sudo rfkill unblock wifi
* Additional Drivers -> Not showing wifi driver
* restart network-manager service
* http://askubuntu.com/a/859263