Troubleshooting OpenCL in case of viewing / processing / exporting problems




  • Gunnar Becker


    First of all thank you very much for your article and i hope you are healthy.
    I'm using a Radeon RX 5700 and the weird thing is that i have this problem (Scrambled or somewhat 'glitched' previews when making adjustments) only when adjusting the sliders in the HDR section.
    Everywhere else the adjustments are working flawlessly.
    Haven't tested everything else so far but i'm wondering why only the HDR part is broken.

    Any idea?

    My other question is how much of a difference is there between HW-Acc on/off when using a Ryzen 2700x.

    Thank you and take care.

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  • Ruibo Zhang


    after deleting the content, the software still doesn't work properly, and when I reinstall C1, the files still missing.

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  • Simon Gardner

    I'm having the issue where hardware acceleration is stuck on 0.  I followed the instructions in this post, but

    I'm not getting the the IntelOpenCL64.DII.


    What I do get is 



    The weird thing is I am not aware of having any AMD components on my computer. I have an I7 processor and an Nvidea GTX 1070 graphics.

    Any help would be greatly appreciated.  I have reached out to Capture One support but these days they seem a bit slow, probably because of the pandemic and everyone sitting at home working on picture files. I'm guessing.  

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  • Simon Gardner

    Well, I was getting some help from Capture One support, but it seems to have disappeared with no explanation. 

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  • FirstName LastName

    I have a fresh installation of Capture One and a 5700XT. The Open CL fix did not work as the issue is still persisting. I'm happy to submit logs or anything to help resolve the problem

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  • Rino Decarolis

    Hello everyone
    i have the same problem ....this only happens when I apply the same adjustments to many images to do a time laps ....this does not happen on all images ....but a large part of outgoing images present artifacts ....and that's a problem for me .... I followed the procedure above but I have not resolved and than the problem is not the OpenCl .... a patch must be released as soon as possible bye



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  • Valentin v G

    I can confirm that OpenCL hardware acceleration using an AMD Radeon 5700 XT and Capture One Pro 20 is broken. Here is a demo video of the issue when editing a photo:

    The troubleshooting steps for the 5700 did not help. Please read the video description for more information and for other links that point to this or similar OpenCL issues related to the AMD Radeon 5700 XT.

    Please Capture One, escalate this issue with AMD. This bug may loose you customers and AMD won't hear us.

    Specs for reference:

    • AMD Radeon 5700 XT (Adrenaline driver version 20.7.2)
    • Capture One Pro 20 Fujifilm (build
    • Windows 10 (2004)
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  • Brian Saghy

    Sadly, same problem here with Radeon 5600 XT (Adrenaline driver 20.7.1)
    I believe they're roughly the same chip family, so that isn't surprising.

    I mostly see the artifacts when using the HDR tool, or switching between presets. This is really frustrating - especially when I just upgraded to this graphics card hoping it would help speed up my photo editing flow!

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  • Humberto Siciliano

    I have the same problem.

    I read that Capture One 20 had this problem fixed so I bought it, but this problem persist. I did all the troubleshooting and nothing. Its pretty anoying since is only the OpenCL in C1 that I have this type of problem.

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