[GodwinC]

In that case, make sure DMProxy is loading correctly when you plug it in.. it should say something like, I also find some microUSB cables are junk:

2012-10-04 10:06:20.214 AM WindowServer[80]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.
2012-10-04 10:06:20.270 AM WindowServer[80]: Display 0x04273740: MappedDisplay Unit 0; ColorProfile { 2, "iMac"}; TransferTable (256, 3)
2012-10-04 10:06:20.271 AM WindowServer[80]: Display 0x2b34488d: MappedDisplay Unit 1; ColorProfile { 3, "DELL U2212HM"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-04 10:06:20.272 AM WindowServer[80]: Display 0x04273740: MappedDisplay Unit 0; ColorProfile { 2, "iMac"}; TransferTable (256, 3)
2012-10-04 10:06:20.272 AM WindowServer[80]: Display 0x2b38400f: MappedDisplay Unit 3; ColorProfile { 4, "DELL 2005FPW"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-04 10:06:20.273 AM WindowServer[80]: Display 0x2b34488d: MappedDisplay Unit 1; ColorProfile { 3, "DELL U2212HM"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-04 10:06:20.274 AM WindowServer[80]: Display 0x2b38400f: MappedDisplay Unit 3; ColorProfile { 4, "DELL 2005FPW"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-04 10:06:20.275 AM WindowServer[80]: Display 0x04273740: MappedDisplay Unit 0; ColorProfile { 2, "iMac"}; TransferTable (256, 3)
2012-10-04 10:06:20.276 AM WindowServer[80]: Display 0x2b34488d: MappedDisplay Unit 1; ColorProfile { 3, "DELL U2212HM"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-04 10:06:20.276 AM WindowServer[80]: Display 0x2b38400f: MappedDisplay Unit 3; ColorProfile { 4, "DELL 2005FPW"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-04 10:06:20.334 AM WindowServer[80]: Display 0x04273740: MappedDisplay Unit 0; ColorProfile { 2, "iMac"}; TransferTable (256, 3)
2012-10-04 10:06:20.334 AM WindowServer[80]: Display 0x04273740: MappedDisplay Unit 0; ColorProfile { 2, "iMac"}; TransferTable (256, 3)
2012-10-04 10:06:20.335 AM WindowServer[80]: Display 0x04273740: MappedDisplay Unit 0; ColorProfile { 2, "iMac"}; TransferTable (256, 3)
2012-10-04 10:06:20.335 AM WindowServer[80]: Display 0x2b34488d: MappedDisplay Unit 1; ColorProfile { 3, "DELL U2212HM"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-04 10:06:20.336 AM WindowServer[80]: Display 0x2b34488d: MappedDisplay Unit 1; ColorProfile { 3, "DELL U2212HM"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-04 10:06:20.336 AM WindowServer[80]: Display 0x2b34488d: MappedDisplay Unit 1; ColorProfile { 3, "DELL U2212HM"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-04 10:06:20.337 AM WindowServer[80]: Display 0x2b38400f: MappedDisplay Unit 3; ColorProfile { 4, "DELL 2005FPW"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-04 10:06:20.337 AM WindowServer[80]: Display 0x2b38400f: MappedDisplay Unit 3; ColorProfile { 4, "DELL 2005FPW"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-04 10:06:20.338 AM WindowServer[80]: Display 0x2b38400f: MappedDisplay Unit 3; ColorProfile { 4, "DELL 2005FPW"}; TransferFormula (1.000000, 1.000000, 1.000000)

Originally Posted by andynormancx

When my DisplayLink driver is causing problems there is no screen saver or power save involved. It can sometimes be in its broken state immediately after booting for the first time after installing it.