I make one last post on this topic to be precise about the solution that allowed my Realtek RTL8852BE WiFi device to work properly:
from:
sudo touch /etc/modprobe.d/rtw8852be.conf
sudo nano /etc/modprobe.d/rtw8852be.conf
In that file, add the lines:
options rtw89_pci disable_aspm_l1=y disable_aspm_l1ss=y
options rtw89pci disable_aspm_l1=y disable_aspm_l1ss=y
options rtw89_core disable_ps_mode=y
options rtw89core disable_ps_mode=y
Save the resulting file, and reboot.
1 Like