I didn't test it with disabled Bluetooth. So cannot provide correct information.
However, there is some update on the issue. Recently (4 days ago), I have rolled back to default kernel 4.18 and updated atheros firmware to one from kvalo (QCA-ATH10KwWLAN.RM.4.4.1-00128-QCARMSWPZ). By now, the issue haven't occurred at all. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1799988 Title: Missing wifi and bluetooth after sleep on XPS 9370 To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1799988/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs