Cfrgtkky

ubuntu 18.04 bionic
wifi driver rtl8723be

i ran this commands in the terminal

git clone https://github.com/lwfinger/rtlwifi_new.git

cd rtlwifi_new

git checkout extended

sudo make install



make command not found :

then i ran

sudo apt-get install --reinstall make

 sudo apt-get install build-essential

error:

 sudo make install

make -C /lib/modules/4.15.0-33-generic/build M=/home/rizwan/Downloads/rtlwifi_new modules

make[1]: Entering directory '/usr/src/linux-headers-4.15.0-33-generic'

Makefile:976: "Cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel"

  CC [M]  /home/rizwan/Downloads/rtlwifi_new/base.o

cc1: error: code model kernel does not support PIC mode

scripts/Makefile.build:332: recipe for target '/home/rizwan/Downloads/rtlwifi_new/base.o' failed

make[2]: *** [/home/rizwan/Downloads/rtlwifi_new/base.o] Error 1

Makefile:1552: recipe for target '_module_/home/rizwan/Downloads/rtlwifi_new' failed

make[1]: *** [_module_/home/rizwan/Downloads/rtlwifi_new] Error 2

make[1]: Leaving directory '/usr/src/linux-headers-4.15.0-33-generic'

Makefile:87: recipe for target 'all' failed

make: *** [all] Error 2

i installed those modules using command

sudo apt install libelf-dev  libelf-devel elfutils-libelf-devel

only libelf-dev gets installed but remaining two is unbale to locate

rizwan@rizwan-HP:~$ sudo apt install libelf-dev  libelf-devel elfutils-libelf-devel

[sudo] password for rizwan: 

Reading package lists... Done

Building dependency tree       

Reading state information... Done

E: Unable to locate package libelf-devel

E: Unable to locate package elfutils-libelf-devel

rizwan@rizwan-HP:~$ 

eventually i found that name of libraries are different-different for different linux distro so help me with installing libelf-devel elfutils-libelf-devel in ubuntu 18.04 hp laptop ay503tx

you need to install linix headers generic by:

sudo apt-get update

sudo apt-get install linux-generic

I see you already have downloaded the realtek wifi drivers make sure you are in the right directory and run this to install them:

cd rtlwifi_new

sudo dkms add ../rtlwifi_new

sudo dkms build rtlwifi-new/0.6 

sudo dkms install rtlwifi-new/0.6

sudo modprobe -v rtl8723de ant_sel=2

Congrats you have running wifi.

Save the config with this command:

sudo /bin/sh -c 'echo "options rtl8723de ant_sel=2" >> /etc/modprobe.d/rtl8723de.conf'

Restart.

Details here:

https://h30434.www3.hp.com/t5/Notebook-Wireless-and-Networking/Realtek-8723DE-wifi-module-amp-Bluetooth-Linux-driver/td-p/6477307