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This is not a problem or anything I am struggling with. It's simply just making me curious.

How come when updating my display driver, a blank command-line shows briefly, before the desktop shows up again? I suspect this may boil down to how a display driver works in the first place?

If it makes any difference, I notice this when I update my nVidia display driver.

Edit
I do not mean a command-line window. The desktop disappears, replaced by a full-screen, blank, command-line. The screen goes black, with an underscore blinking. After 1-3 seconds, the desktop re-appears by itself.

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    I imagine it is shelling out to run regsvr32 to register new DLLs. I'm not putting this as an answer since there isn't any definitive way for us to tell you exactly what is happening on your machine.
    – EBGreen
    May 29, 2012 at 15:26
  • @EBGreen I apologize, I wasn't clear enough. Please see my edits.
    – sshow
    May 29, 2012 at 16:08
  • Does it goa away by itself?
    – EBGreen
    May 29, 2012 at 16:35
  • @EBGreen Yeah, it does.
    – sshow
    May 29, 2012 at 18:10
  • use process explorer (technet.microsoft.com/en-us/sysinternals/bb896653.aspx) to see what the process is.
    – EBGreen
    May 29, 2012 at 18:40

1 Answer 1

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It is restarting the video driver, kind of hard to display a rendered desktop while trying to restart the software rendering the desktop!

There is a basic text driver built in to the BIOS (all the stuff you see before windows boots is rendered by that) windows is dropping to that, replacing the code that was in use and in memory, then restarting it.

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