[solved] nvidia driver - does not resume from suspend

[Wolf]

System gets to sleep (systemctl suspend), when pressing a key to resume from sleep, the system will power up (fans and hard disk can be heard), but screens remain dark. Not even terminals can be accessed (ctrl-alt-F2...6).
This only happens with TWO MONITORS ATTACHED. One monitor: no problem.
With nouveau driver, two monitors are working as well.

ubuntu GNOME 18.04, clean install
kernel 4.15.0-29-generic #31-Ubuntu
Fujitsu-Siemens Celsius WT-380
nvidia GT 630

Tried nvidia340, 390 and 396 - all the same result.

[Wolf (drechsel)]

After the last update (4.15.0-30-generic), suspend only works with one monitor and the nouveau driver.

NOT with nvidia drivers (one or two monitors), not with nouveau driver and two monitors.

[Wolf (drechsel)]

Seems to be resolved with 4.15.0-34-generic.

Great!

[Wolf (drechsel)]

Problem occurs again with 4.15.0-38-generic,
with all of them:
nouveau, nvidia 390, 396 and 410

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1785174

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Wolf (drechsel)]

Sorry, cannot add any logs, as system is completely freezed after resume.

[Joseph Salisbury (jsalisbury)]

Marking invalid per comment #2