Deze kwam ik ook nog tegen:
http://forums.evga.com/m/tm.aspx?m=1964245&p=1. Ander probleem, maar wel vervelend als je er mee zit en ook Displaypoort gerelateerd. Voordat mensen denken dat Displaypoort slecht is: het werkt normaal gesproken perfect, dit zijn oplosbare rare uitzonderingen.
I put my PC in to sleep then when I'm trying to wake it up, I just get a blank screen though the lights of the PC were on. So I tried several restarts until I finally change ports, HDMI and DVI works great but when I use DisplayPort, I get no signal.
I have the same problem. It's not the port or cable as it works during boot. It is Windows drivers not properly recognizing displayports!. I found this solution elsewhere. Give it a try:
Description of Solution: It is honestly as if the driver install the first time happens incorrectly and then it doesn't do plug n play correctly thereafter. So I tell device manager to show me nonpresent devices and then i uninstall them. The next time it connects it will redo the plug and play.
Solution that worked for me:
Click Start > Run.
Type cmd and press Enter.
At the command prompt, run this command: Note: In Windows 2008 and Windows 7, open the command prompt using the Run as Administrator option.
set devmgr_show_nonpresent_devices=1 Note: If this command does not work (a possibility in Windows Server 2000 and 2003), you may need to add the parameter to Windows and set its value:
Right-click the My Computer desktop icon and choose Properties.
Click the Advanced tab and select Environment Variables.
In the System variables section, click New.
Set the Variable name to devmgr_show_nonpresent_devices and set the Variable value to 1 to enable the parameter.
Click OK to add the variable to Windows.
Start the Device Manager by running this command from the same command prompt:
start devmgmt.msc
Click View > Show Hidden Devices.
Expand the Monitors tree (click the plus sign next to the Monitors entry).
Right-click the dimmed Monitors, then click Uninstall.
Once all of the grayed out Monitors are uninstalled, reconnect your monitor.
Rekeningrijden is onvermijdelijk, uitstel is struisvogelpolitiek.