Entirely Black Window

[GMSTOLTZ]

Windows 7 Pro SP1
Keyshot 7.3.40

Everything worked fine last week.  This morning fire up Keyshot and the render window is entirely black for any model I open.  Doesn't matter if it's a .bip, a Solidworks import, anything.  No errors on startup.  I've rebooted the system which had no impact.  Upon startup, the open recent window accurately displays the models.  If I select render scene, the output within Keyshot is black, but the file itseif is properly rendered. 

Any suggestions?  I've tried resizing the window, zooming in/out, moving the model, etc.

[mattjgerard]

Check your gpu card drivers. That's the response I get from support when stuff like this happens. If I render something in the background locally on my machine (which I rarely do) the render progress window is black and I can't see it until its finished. All my gpu drivers are up to date, and the next thing is to do a full clean install which I just don't have time for, and since I don't render locally that much its not that big of a deal to me.

But, KS does use the GPU to display the realtime render window I believe, so that would be the first place to start.

And I'm on Win 7 as well. Been trying to get IT to bump me to 10 for a while due to some other issues as well, but nothing yet.

[BJT_DAVE]

I had this once a long time ago, think it was something to do with something in the advanced settings tab, graphic effects unticked possibly. Give that a try, heres what mine is set to.

[GMSTOLTZ]

'Solution' - I don't know if this would help anybody else but here's what 'fixed' it for me as it happened again this morning.  I'm using an LG 43ud79-b monitor with 2 of the inputs on one PC, and two on another.  The PC with Keyshot is running an old ATI FirePro V5800.  ATI has a function that will allow you to combine two displays to be one "Eyefinity" display.  If I enable that so the two desktops act as one, everything works fine.  If I keep them separate, the scene renders complete black. 

[Ian Reymond]

As mattjgerard said, you may be running an outdated graphics card driver. To obtain the latest, visit the graphic card manufacturer's web page and search for the latest driver. I would NOT use Windows Driver Update or any auto-detection utility since they are not very reliable.  Download and install the latest driver updated for your card model.

[Niko Planke]

An other thing to be aware of:
Some Modern CPUs have an integrated graphics solution.
It is important to not only update the dedicated Graphicscards driver but also the driver for the integrated Graphics solution/APU if you have one.