Re: WIFI is so slow with Ubuntu 20.04.2 LTS in notebook HP
It appears that you have thrown everything that is suggested in various forums at this problem. Most of them are incorrect. First:
[/etc/modprobe.d/rtl8723de.conf]
options rtl8723de ant_sel=1
You are not using the driver rtl8723de. Let’s remove the file:
Code:
sudo rm /etc/modprobe.d/rtl8723de.conf
Next:
[/etc/modprobe.d/rtw_8723de.conf]
options DRIVER 11n_disable=1?
This is meaningless; let’s remove it:
Code:
sudo rm /etc/modprobe.d/rtw_8723de.conf
Next:
[/etc/modprobe.d/rtw88_8723de.conf]
options rtw88_8723de 11n_disable=1?
The driver has no such manipulable parameter; let’s remove it:
Code:
sudo rm etcmodprobe.d/rtw88_8723de.conf
Now:
libkmod: ERROR ../libkmod/libkmod-config.c:716 conf_files_filter_out: Directories inside directories are not supported: /etc/modprobe.d/50-rtl8723de.conf
You are not using the driver rtl8723de. Let’s remove the file:
Code:
sudo rm /etc/modprobe.d/50-rtl8723de.conf
You have two possibly conflicting drivers installed.
##### lsmod #############################
8723de 1695744 0
rtw88_8723de 16384 0
Let’s blacklist one and see if the performance improves:
Code:
sudo -i
echo “blacklist rtw88_8723de” >> /etc/modprobe.d/blacklist.conf
exit
Reboot and tell us if there is any improvement.
"Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, B.Sc., M.Sc., M.A., Ph.D., Sc.D.
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