Comment 4 for bug 1825736

I did not have this problem prior to upgrading to 19.04. The upgrade process was an upgrade from 18.04 to 18.10 with an immediate upgrade to 19.04 (after a clean reboot), so there was no usage of 18.10 as a desktop environment to compare with. The 18.04 install was kept up to date.

I have tested using the installed linux-image-4.18.0-17-generic kernel and found that there are no problems. During the test process I have noted that there are no problems if the suspend is initiated manually using the top right 'menu' to suspend instead of shutdown or reboot. There is a problem, however, if the suspend is initiated by simply closing the laptop.