Hi again, 
  
I have having another problem with sleep on my Dell Latitude E5440 laptop. I just bought a new Wi-Fi card to replace the unsupported Intel one, this is a Broadcom BCM94322HM8L. Everything works flawlessly out-of-the-box with this card. 
  
However, sleep stopped working again. I am pretty sure that is the Wi-Fi card that prevents sleep, because when i removed it, sleep worked again. 
  
Here is the output of 
  
pmset -g assertions : 
  
 
  
log show --style syslog | fgrep "Wake reason" : 
  
 
  
Here is my DSDT.aml file : https://cloud.r33int.xyz/s/ZmoaOcNyTP6BD07 
  
Thanks for reading me. 
  
Best regards, 
  
r33int