kgharvey Any other ideas of what I could try to get the ebay laptop screen the same as my main laptop would be much appreciated
Check motherboards name, version ( in cpu-z )
Check motherboard BIOS version ( cpu-z )
Check 1060 BIOS version ( gpu-z )
Check HDD lifetime, compare it to understood laptop's screen lifetime difference ( CrystalDiskInfo )
Check panel used in screen ( hwinfo or aida )
If laptops are same, install same OS and drivers ( based on same software version of your safe laptop ), config them identically