Lightroom Classic: Slideshow on second (4K) display is not full screen

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  • Problem
  • Updated 1 week ago
  • (Edited)
When I try to show a slide show using the Slideshow module from Lightroom (CC 15.10.1), from my Retina iMac (10.11.6) on my Samsung 55" KS800D (8000 model) 4K display, the images are shown quite small.  The image display is unrelated to the native photo size.  It looks to be limited to plain HD.

I've tried a variety of things to get the sizing to work.  Moving the main LR window over to the 4K display helps, leaving me with the known problem of LR's inability to upres photos in Slideshow.  Exporting my photos and importing them into another program is a huge hassle.  

It's interesting that the fullscreen preview (F key) does fullscreen rendering on the 4K display (when the main LR window is over there), even for below-resolution photos.  And the secondary display preview also shows (nearly) fullscreen (when the main LR window is on the main screen.  So close...

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William Griswold

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Posted 2 years ago

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Photo of Rikk Flohr

Rikk Flohr, Official Rep

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I've asked engineering to look into this to see if they can duplicate what you are seeing.  Stand by. 
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Chris Parker

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Man this is so annoying.  We have a 4K display at our camera club meetings and as the OP has pointed out, the images are ridiculously small on the 4K display whereas everything else works fine.  I wish Adobe would fix this so that we as photographers get the tools we need.