P: Overlay is very hard to see (Crop/Transform)

The GPU doesn't provide much benefit (and it sometimes slows things down) unless you have a 4K or 5K display. It speeds up the Develop module but no other part of LR. If you do have such a display, the GPU can speed things up a little, a lot, or not at all.  So it's best to try editing a few photos to see if you can notice a difference.

Finally had a moment try out your suggestion. I see so little difference--but the "best" is so light it's unhelpful. When cycling thru the various overlays I had a hard time telling which one was displaying. Below I've marked the lines because they are so faint.

GPU off


GPU on

John, thanks much.  It does make a distinct difference.  I have a Lightroom compatible video card (NVidia 760).  What are the disadvantages  of not using the graphics acceleration?

Be sure to click the ME TOO button in the upper-right corner.

Definite problem. It’s not usable now unless very dark image. Please, please correct.

So try checking and unchecking Preferences > Performance > Use Graphics Processor -- notice any difference?

A number of people have complained about this -- can you post a full-resolution screenshot showing what it looks like (in PNG format)?

I've noticed that the lines are brighter when the GPU is enabled:

GPU on:


GPU off: