This conversation has been merged. Please reference the main conversation: Lightroom: LR5 Second Monitor initially not rendering image clearly.
LR 5.4 64 bit on Win7 Home Premium S1
Amd Athlon, 8GB RAM
Problem: Prior to making any modification to a slider the image on a second monitor when in Loupe view is slightly blurred when compared to the main monitor's image when in Develop, both at the same magnification.
Many people have reported this issue, please see referred thread.
For me the image present in Loupe when loading is momentarily very blurred, it then shows as per the develop screen on primary module (good), then blurs somewhat after a few seconds (bad). I have built 1:1 previews, and have my jpeg preview set to full size etc. Other posters have mentioned moving a detail (or presumably any) slider will result in the loupe view on the secondary monitor becoming consistent with the first. I've observed this too, I've also noticed just clicking and dragging on the loupe view image causes it to return to being consistent with the primary screen in the develop module. This leaves me with little doubt that this is not only undesirable behaviour, but also a BUG.
Given the breadth of systems observed I do not think this is hardware specific. I also do not think it is hard to reproduce based on the diverse reporting documented on this website.
This is completely ridiculous! One of the primary benefits of having the second screen is that you is that you can observe in Loupe view what you are doing in develop view. I can't believe such an elementary bug has slipped in to LR, and has survived for so long. Do you have anyone running tests with dual screens?
Please address this long standing and fairly fundamental issue either with a work around (settings), or a proper code fix.
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