This is third degree price discrimination by Dell. I should have been more precise in my first comment. To be crystal clear: the 9360 has a bios featuring the

This is third degree price discrimination by Dell. I should have been more precise in my first comment. To be crystal clear: the 9360 has a bios featuring the proper ACPI tables, which are omitted on purpose from other cheaper models, breaking S3 on purpose. This is why injecting proper tables as proposed in this link restores normal functionality. It is not rocket science, just hard enough to do without proper documentation to be a waste of time. The initial submission title said it was a shame, and I agree it is shameful to intentionally break features to charge higher price (and no, I won't buy that S0 works perfectly now, or that adding a simple if/else is "too complicated"