Issue resolved. The magic seems to be: Disable Rapid Start Disable Smart Connect Disable TPM
Rapid Start was already disabled on my machine so it's one of Smart Connect or TPM that did it. With all three of those disabled, the system does not resume after 24 hours. I'd still argue this is a bug, though, as all of these should function under Ubuntu, no? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1318477 Title: [Dell XPS 15 9530] Wakes from sleep after exactly 24 hours + 3-5 seconds To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1318477/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
