Hello,
After upgrade to nvidia-drivers-285.05.09, I started getting blank or black screen after resuming from sleep to ram. I have GeForce Go 7300 laptop card.
This 285.05.09 Suspend-to-RAM problems post suggests reverting back to old 280.13 nvidia-drivers. I did and it worked!
To do that, I downloaded etp file from http://ftp.hu.debian.org/pub/linux/distributions/sabayon/entropy/standard/sabayonlinux.org/packages-nonfree/amd64/5/ and downgraded several packages. Then added them to my package.mask.
I believe, one of these mirrors worked for me to download old packages:
http://www2.itti.ifce.edu.br/sabayon/entropy
http://sabayon.c3sl.ufpr.br/entropy
Have fun.
