Pourtant mon ordinateur ne capte plus rien, ou très faiblement, dès que j'éloigne mon téléphone de quelques 10-20 centimetres, je perds des barres de wifi... Mon ami qui avait remédié à ce problème avait rentré ces commandes :
Installing Realtek wifi driver in ubuntu (any version)
First upgrade the kernel to 3.16 as shown in accepted answer at this link
reboot into the new 3.16.x by command sudo reboot
After rebooting, run sudo apt-get -f autoremove
Now we have to remove old kernel, for that, first list the kernels currently present by command sudo dpkg --list | grep linux-image
It gives a list of kernels, identify the older version, for example linux-image-3.11
Give command sudo apt-get purge linux-image-3.14
Now give command : sudo update-grub2
Now reboot by sudo reboot
Now we have to install realtek driver. For that follow below commands :
sudo apt-get install linux-headers-generic build-essential git
git clone
https://github.com/lwfinger/rtlwifi_new
cd rtlwifi_new
make
sudo make install
sudo modprobe rtl8723be
This rtl8723be in last command was the driver I required. There are many other drivers of realtek in rtlwifi_new. For me, rtl8723be was required, you may require some other driver. To check which driver you need, give command lsusb and search the output list for something like 0bda:b728 Realtek Semiconductor Corp. This b728 can be something else, and this will determine driver required. Google for more info.
Mais à l'heure d'aujourd'hui ça ne marche plus...
