Comment 37 for bug 1848771

Workaround data point: On Acer C720P, using linux-oem kernel (4.15.0-1065-oem) suspend works fine. Using 5.3.0-nn causes instant boot on wake after suspend. I've not tried 5.0.0.

I'm pinning 4.15 for now but would love to run current.

When it fails the log stops after "PM: suspend entry (deep)". Now that it works, here's what's in the logs at that point:

Jan 9 15:08:54 systemd-sleep[3361]: Suspending system...
Jan 9 15:08:54 kernel: [ 434.199460] PM: suspend entry (deep)
Jan 9 15:08:54 kernel: [ 434.199464] PM: Syncing filesystems ...
Jan 9 15:08:54 kernel: [ 434.217766] ehci-pci 0000:00:1d.0: port 2 resume error -19
Jan 9 15:16:53 kernel: [ 434.246721] done.

etc.

Somewhere between "suspend entry" and "Syncing filesystems" the suspend appears to be breaking.