Lightroom Classic only supporting limited graphics acceleration suddenly

[briantium]

I've usually not had a problem with having full graphics acceleration available in LRclassic, but there have been a couple times where it shows I have only limited graphics acceleration as an option. This is in both the Auto setting and the Custom setting; full acceleration is simply grayed out (see screenshots attached).

macOS Monterey 12.6.5

Lightroom Classic 12.3 Camera Raw 15.3

MacBook Pro 14" M1 Pro 8-core, 14-GPU, 32GB RAM, 1TB SSD

Again this sort of randomly happens, although I did just upgrade to the latest Lightroom Classic the other day; that's about the only difference. Anybody know how I can get back access to full graphics acceleration? 

[johnrellis · Accepted solution]

Try deleting the file "Camera Raw GPU Config.txt" as detailed here:

https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html#solution-3

That will cause LR to reevaluate the capabilities of your GPU.

[ricky336]

I had the same issue, and this solution has fixed it. I now have full GPU acceleration!