Comment 19 for bug 1897185

This may also help:
I'm testing the fix for bug 1872159 (spinning logo hang on startup). It seems to be working.
So, since the rendering of the nVidia driver is superior to the x.org driver, I switched for the generic x.org back to nVidia's latest 450 version for the T570's GeForce 940MX. Well: on startup, the system exhibited this bug and went into suspend as soon as I put in the password. Immediately before suspending, the logs showed:
NVidia: access.
Using input driver 'libinput' for 'Video Bus'
and then suspended.
I then tried nVidia's 435 driver; same result (system suspended at login).
So I've gone back to the generic x.org driver for the discrete graphics again.
This is the same system where loading the Dropbox app on startup will also cause suspend.
Hope this helps.
Thanks.