I've tried all the different 4.14.0-041400 kernels: all of them fail in handling correctly the resume step.
The main difference with the previous kernel is that the mouse seem to resume - I sow the red of the leds, but having the screeen black I've no idea about the correct functionality.
Suspend/resume was working correctly in 14.04, 14.10, 15.04 32 bit version.
I've done the test as described but this didn't fix the issue.
While booting I've seen some ACPI error as per the attached image https:/ /photos. app.goo. gl/YTZxkq7T2N4S iBGb2
I've tried all the different 4.14.0-041400 kernels: all of them fail in handling correctly the resume step.
The main difference with the previous kernel is that the mouse seem to resume - I sow the red of the leds, but having the screeen black I've no idea about the correct functionality.
Suspend/resume was working correctly in 14.04, 14.10, 15.04 32 bit version.
Let me know how I can assist you.
Thanks for taking care of this issue.
Alessandro-