I have a Samsung series 5 ultra (np530U4c - ivy bridge/Nvidia version).
The machine won't suspend on lid closing.
I has worked on fresh install. After it I added "pcie_aspm=force i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1" to grub defaults.
After It the suspen not worked anymore. ...Neither with extra params nor without them.
I think the kernel switched off the lid closing detection, because it won't work on windows too.
How can i fix this?
My laptop bricked and the service changed the mother board so I got this problem twice.