Ubuntu
linux package

  1. Bug #1799988
  2. Comment #59

Comment 59 for bug 1799988

Revision history for this message
Marc-André Moreau (mamoreau) wrote :

I am also experiencing the same issue with on a Dell XPS 13 9370 that I upgraded to 18.04. I added mem_sleep_default=deep to my grub boot options to workaround the battery drainage when "suspended". Just like other people, I can't seem to figure out a pattern to reproduce the issue with 100% certainty. I checked and the BIOS is up to date, and my wifi firmware is WLAN.RM.4.4.1-00079-QCARMSWPZ-1.

When the problem happens, the only way I can get wifi back is to reboot or shutdown + boot, sometimes it takes more than one reboot to get wifi back up. For some reason, a complete shutdown + boot appears to work better than a simple reboot.