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HW Acceleration OpenCL greyed out - latest nVidia drivers

Posted: Thu Apr 11, 2019 10:21 am
by billlagr
Hi All
The Use OpenCL option under hardware acceleration is greyed out and there's no graphics cards listed. I know that it USED to work, so I'm unsure what's different, unless something in recent nVidia drivers changed.
I have done a graphics driver update, and also uninstalled/reinstalled ASP.

I'm using a nVidia GTX 1070 with the latest nVidia drivers, on Win 10, ASP 3.5.0.350 x64

Anyone with similar issues?

Re: HW Acceleration OpenCL greyed out - latest nVidia driver

Posted: Thu Apr 11, 2019 2:29 pm
by wachovius
Yes, same problem, only solution to return to outdated Nidia driver versions. Look at viewtopic.php?f=90&t=64697#p363761.

Re: HW Acceleration OpenCL greyed out - latest nVidia driver

Posted: Sat Apr 13, 2019 5:11 am
by Wilbur
I replaced the OpenCL.dll version found in folders Corel\Corel Aftershot Pro 3( 64-bit)\build and Corel\Corel Aftershot Pro 3( 64-bit)\HDR with a newer version (OpenCL64.dll) that comes with your GFX card driver you can find extracted as OpenCL.dll in the folder Windows/System32. So, just copy the new OpenCL.dll into the mentioned Corel folders. That worked for me!

Re: HW Acceleration OpenCL greyed out - latest nVidia driver

Posted: Mon Apr 15, 2019 12:29 pm
by billlagr
Yep, worked a treat - Thanks Wilbur!

Re: HW Acceleration OpenCL greyed out - latest nVidia driver

Posted: Tue Apr 16, 2019 10:02 pm
by Wilbur
billlagr wrote:Yep, worked a treat - Thanks Wilbur!
Well, don't get too excited. My apologies, I'm afraid the success is just superficial. I just did some batch conversion tests with 30 raw files and I didn't notice any speed improvement with OpenCL enabled. It seems that Corel's implementation of OpenCL doesn't go well with the newer OpenCL version. It's a shame that Corel doesn't seem to care, this problem has been around for quite some time.

Re: HW Acceleration OpenCL greyed out - latest nVidia driver

Posted: Thu Jun 06, 2019 2:05 pm
by danmckinney
Hey - thanks for this!! Same issue here, but by replacing the mentioned files, the option is now available.

Re: HW Acceleration OpenCL greyed out - latest nVidia driver

Posted: Mon Jun 08, 2020 1:08 am
by rondo
Thanks a lot worked for me too!