Dual graphics - screen blinking at logon

mikolajek

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Location
Warsaw, Poland
I'm running Dell Precision M4800 with Intel HD 4600 and nVidia Quadro K2100M. The system in Windows 8.1 Pro 64-bit. Just to avoid pointing at one of the most reasonable solutions - yes, I've installed Intel graphics driver BEFORE nVidia one. :)

I'm experiencing a strange behavior at Windows logon. The thing is that the logon screen loads, then the screen goes blank for ca. 1 second and the logon screen returns. After I input my login credentials and my desktop is being loaded, the same happens - the desktop loads, then the screen goes blank for ca. 1 second and my desktop returns. There are no more problems of this nature when using the computer - it happens on longon only.

My guess is that graphics cards are "fighting" for taking care of the display at the logon. However, it seems unreasonable for me as I would expect explorer always to be handled by the build-in Intel graphics.

It's not a HUGE problem but as it happens every time I log in is a annoying and I'd like to get rid of this "feature" if possible. Can anyone come up with a possible solution on what setting may be adjusted to avoid this problem? Many thanks in advance!
 

My Computer

System One

  • OS
    Windows 8.1 Pro x64
    Computer type
    Laptop
    System Manufacturer/Model
    Dell Precision M4800
    CPU
    Intel i7-4900MQ
    Memory
    32 GB
    Graphics Card(s)
    Intel HD Graphics 4600 & nVidia Quadro K2100M
    Monitor(s) Displays
    Dell U2312HM & Dell 2408WFP
    Screen Resolution
    1920x1080 & 1920x1200
    Hard Drives
    Samsung 840 EVO 256 GB & Hitachi TravelStar 5K750 750 GB
    Browser
    Firefox 32
    Antivirus
    Kaspersky Internet Security 15
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