Please open Lightroom and Uncheck the option Preferences > Performance > "Use Graphics Processor".
Restart Lightroom and let us know if that helps.
So, so, so many thanks! That worked.
While an explanation isn't needed, might you know why, after working for a long time, this issue would pop up? I have a GeForce GTX 860M graphics card that apparently was causing the problem.
Again, thank you so very much! Updating that Graphics Card driver did work.
Great ! Glad to know it worked.
Strangely, all of sudden I'm having the same issue again. I did have to do a System Restore in the meantime because of another issue, but I did reinstall the appropriate driver. However, when I check the "Use Graphics Processor" box now, the black screen returns (if I uncheck it, it does work, but I'm thinking that I'm then not getting the benefit of the more powerful graphics card). Might you know why I was able to get it to work once, but now--even with the updated driver--it no longer can use the "Graphics Processor" option?
Obviously the program is now functional, and I thank you very much for pointing me to the Performance tab under Preferences. If you think there might be something else for me to try to make using the Graphics Processor possible, that would be wonderful.
Have a good day!
I have the same problem here but it occurred after I using Window 10, even installed the latest driver of graphic card cannot solve the problem. My graphic card is Nvidia GT745M (Laptop).
The same issue happens with other programs and games that run on external graphic card and can be solved by force running them on on-board graphic card.
However, I still did't get a proper answer about this issue from any sources yet. I hope Adobe's staff may able to help me on this, otherwise, i have to run my LR6 with on-board graphic card which may not enough when using batch develop.