P35-DS3R suspend problems

[Xwarman]

On that PC since Ubuntu 16.04 Upgrade PC comes almost imediadly up from suspend. If I try to send to suspend it takes a few seconds and the pc reactivate itself as if I give a wake up call. That happens almost every time I try to suspend.
Note: That error seems to exist since the Ubuntu 16.04 Upgrade.
---
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
DistroRelease: Ubuntu 16.04
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-04-16 (249 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160416)
NonfreeKernelModules: nvidia_uvm nvidia
Package: installation-report-generator 0.2.3-0ubuntu3
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=de_DE
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
Tags: xenial
Uname: Linux 4.4.0-57-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

_MarkForUpload: True

[Xwarman (xwarman)]

apport information

[Xwarman (xwarman)]

apport information