(In reply to comment #25)
> (In reply to comment #22)
> > Adding s3_bios to kernel parameters didn't work for me. The suspend just
> > does not work anymore. Laptop wont suspend anymore.
> > 
> > My hardware:
> > Asus -K55N
> > Radeon HD7250G
> 
> You can also try: acpi_sleep=s3_mode or acpi_sleep=s3_bios,s3_mode
> 
> A little info here:https://www.kernel.org/doc/Documentation/power/video.txt

Neither of that work. Also I am booted in UEFI mode, if that helps?