Lightroom Classic CC: All my images look grainy and it crashes all the time

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This conversation has been merged. Please reference the main conversation: Lightroom Classic: Noise reduction effect not displayed in Develop mode

After I upgraded from Lightroom CC to Lightroom Classic CC all my images look grainy. Even when shot at ISO 100. It is really disturbing and I'm not sure what to do. I never had that issue with older LR versions. I updated older catalogs and the issue is the same with those photos. Images that looked great are all grainy now. 

Also, LR Classic crashes at least 4-5 times while editing a wedding. So annoying. Anyone having similar issues? Or know how to correct them? 
Photo of Sascha Reinking

Sascha Reinking

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Posted 2 years ago

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2 years ago
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Jao van de Lagemaat

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There is a bug with certain graphics cards with indeed images looking grainy. Try turning off GPU acceleration in Preferences->Performance and see if that fixes the graininess.
2017-10-24T22:43:36+00:00
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Sascha Reinking

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Oh my goodness. That made such a big difference. Who knew?! Will it have influence on the performance? Or what happens if I keep it turned off? 

If only now the crashes would stop!!
2017-10-24T22:59:34+00:00
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James Hess

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You probably won't notice any difference or problem at all. The GPU support was added to Lightroom primarily for those who have 4k or 5K high-resolution monitors.
2017-10-25T03:00:30+00:00
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Jao van de Lagemaat

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Performance should be somewhat better in Classic with it on as it now does a lot more on the graphics card than it used to do before where it only made a difference on very high res screens. Nowadays it makes a difference almost anywhere. However, if you need to choose between more accurate display and speed I would choose accurate display. I don't have this problem but have now seen many people on the forum with the problem. 
2 years ago
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Kanheiya Agrawal, Employee

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Hi Sascha,

Please provide your system info. you can find it under Help->System Info ...
Please update your graphics card driver to the latest version and try.

-Kanheiya

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