Optimus graphic glitch after suspend


i’ve got an optimus laptop (Lenovo Y580) and got the nvidia card working with 325.15 (randr 1.4 etc) with Kernel 3.10.11.
When i suspend and resume my system the screen looks like this:


Anyone got some hint for me?

http://s7.directupload.net/file/d/3397/2g3efsdx_png.htm is not accessible , its blocked ?

The bug has been filed on launchpad, here : https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-319/+bug/1220865