“Ativar Wifi” não mostrando

Question

Eu usei recentemente o comando sudo apt-get autoremove e depois a opção "Ativar Wifi" não está sendo exibida.

$ lspci -knn | grep Net -A3
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter [10ec:8821]
    Subsystem: Lenovo RTL8821AE 802.11ac PCIe Wireless Network Adapter [17aa:a814]
    Kernel modules: rtl8821ae, wl

$ iwconfig is
lo no wireless extensions.

enp1s0    no wireless extensions.

De /var/apt/history.log :

Start-Date: 2017-11-06  01:15:38
Commandline: apt-get autoremove
Requested-By: praveen (1000)
Remove: linux-headers-4.10.0-28-generic:amd64 (4.10.0-28.32~16.04.2), librpmsign3:amd64 (4.12.0.1+dfsg1-3build3), linux-image-extra-4.10.0-33-generic:amd64 (4.10.0-33.37~16.04.1),
librpmbuild3:amd64 (4.12.0.1+dfsg1-3build3),
linux-image-extra-4.10.0-35-generic:amd64 (4.10.0-35.39~16.04.1),
debugedit:amd64 (4.12.0.1+dfsg1-3build3),
linux-headers-4.10.0-33-generic:amd64 (4.10.0-33.37~16.04.1),
linux-image-4.10.0-28-generic:amd64 (4.10.0-28.32~16.04.2),
linux-headers-4.10.0-35-generic:amd64 (4.10.0-35.39~16.04.1),
rpm:amd64 (4.12.0.1+dfsg1-3build3),
linux-image-4.10.0-33-generic:amd64 (4.10.0-33.37~16.04.1),
linux-headers-4.10.0-28:amd64 (4.10.0-28.32~16.04.2),
linux-headers-4.10.0-33:amd64 (4.10.0-33.37~16.04.1),
linux-headers-4.10.0-35:amd64 (4.10.0-35.39~16.04.1),
linux-image-4.10.0-35-generic:amd64 (4.10.0-35.39~16.04.1),
linux-image-extra-4.10.0-28-generic:amd64 (4.10.0-28.32~16.04.2)
End-Date: 2017-11-06  01:17:19

Saída de uname -a :

Linux praveen-Lenovo-ideapad-300-15ISK 4.10.0-38-generic #42~16.04.1-Ubuntu SMP Tue Oct 10 16:32:20 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

$ dpkg-query -Wf '${db:Status-Abbrev} ${Package;-40} ${Version}\n' linux-{image,headers}-\* | grep '^i'
ii  linux-headers-4.10.0-37                  4.10.0-37.41~16.04.1
ii  linux-headers-4.10.0-37-generic          4.10.0-37.41~16.04.1
ii  linux-headers-4.10.0-38                  4.10.0-38.42~16.04.1
ii  linux-headers-4.10.0-38-generic          4.10.0-38.42~16.04.1
ii  linux-headers-4.4.0-98                   4.4.0-98.121
ii  linux-headers-4.4.0-98-generic           4.4.0-98.121
ii  linux-headers-generic                    4.4.0.98.103
ii  linux-headers-generic-hwe-16.04          4.10.0.38.40
ii  linux-image-4.10.0-37-generic            4.10.0-37.41~16.04.1
ii  linux-image-4.10.0-38-generic            4.10.0-38.42~16.04.1
ii  linux-image-extra-4.10.0-37-generic      4.10.0-37.41~16.04.1
ii  linux-image-extra-4.10.0-38-generic      4.10.0-38.42~16.04.1
ii  linux-image-generic-hwe-16.04            4.10.0.38.40

    

Answer 1

Esses comandos funcionarão para rtl8192ce, rtl8192se, rtl8192de, rtl8188ee, rtl8192ee, rtl8723ae, rtl8723be e rtl8821ae. Se você tiver outro driver, por favor, pesquise e instale.

sudo apt-get install linux-headers-generic build-essential git 
git clone http://github.com/lwfinger/rtlwifi_new.git
cd rtlwifi_new
make
sudo make install

Depois disso, se o seu sistema não carrega o módulo do kernel apropriado, você pode executar o comando abaixo no mesmo diretório (certifique-se de executar isto para o seu driver específico no meu caso, é rtl8821ae):

sudo modprobe rtl8821ae