No OpenCL GPU found

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GermanJohn

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No OpenCL GPU found

PostFri Jan 11, 2019 5:39 pm

Hey everyone,

I know this has been asked a bunch of times but none of the issues seem to be quite mine.
Upon starting Resolve 15, it tells me I have no OpenCL capable GPU. If I try to manually configure it, it doesn't see my GPU at all.

My specs:
CPU: Ryzen 5 1600
RAM: 16GB
GPU: RX480 (8GB VRAM)

I really think the RX480 should be able to handle Resolve, and given that the R5 1600 doesn't have an iGPU, I don't see what's going on - surely if it can display, it should detect the GPU?

I really hope someone can help me out here...
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GermanJohn

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Re: No OpenCL GPU found

PostSat Jan 12, 2019 7:06 am

Derp, I hadn't actually installed OpenCL drivers. That would've helped.
Starts now!
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Carsten Sellberg

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Re: No OpenCL GPU found

PostSat Jan 12, 2019 10:38 am

Hi.

I don'r know your RX480. But I wonder if it can be a driver problem?

Suggest you try the latest AMD driver. And if it don't work, then try a previus one.

Just to make sure. Are you running Windows 10?

Regards Carsten.
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mister_cg

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Re: No OpenCL GPU found

PostSat Jan 12, 2019 4:03 pm

Jonas, the best is to use the GPU-Z tool and check the capability and versions of your HW/Installation.
If GPU-Z shows you that OpenCL is enabled than Davinci Resolve should find your HW. Otherwise you might have driver installation issue. I am quite sure that RX480 is supporting OpenCL.

I would recommend:
1. Try other (newer or older) driver version. I already had the issue with older GPU that OpenCL was broken in latest AMD driver version. After installation of older version OpenCL was active again.
2. If you do not find the problem at all it could be "last" idea to deinstall the GPU drive completely with DDU software. Afterwards install the driver again.
MySystem:
SW: Davinci Resolve Studio v15.0.0088 (because v15.2.2.007 is crashing!)
CPU: AMD Phenom II X6 1100T
GPU: Radeon RX580 8GB (OpenCL 25.20.15011.1004)
RAM: 16GB
OS: Windows 10 Pro 64bit installed on SSD
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Jerry Suppan

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Re: No OpenCL GPU found

PostSun Jan 13, 2019 10:56 am

GermanJohn wrote:
Upon starting Resolve 15, it tells me I have no OpenCL capable GPU. If I try to manually configure it, it doesn't see my GPU at all.
.


Interesting because I have this exact same problem but using an Intel product.

Computer: Intel Hades Canyon (with discrete AMD Graphics)
Graphics: Intel HD Graphics 630; Driver (latest) 2018-12-10 Intel Driver Version: 25.20.100.6471
Graphics: Radeon RX Vega M GH Graphics
Memory: 32GB
Storage: 1TB SSD NVMe x2

Theoretically the Hades Canyon should handle the loading of Resolve fairly easily. I can even load Resolve on my ASUS S15 Notebook with Nvidia MX150 and Intel Core i5-8250U. But somehow, Blackmagic's Resolve is finicky with this OpenCL thing. The latest install (v15.2.2) did nothing to alleviate the problem.



Update
2019-01-14 11:00:53


I used GPU-X to determine which driver for each of the Intel and AMD graphics chip within the Intel Hades Canyon would be compatible in supporting OpenCL and finally found one of each.

Intel Graphics 630
Driver Version 23.20.16.4901
Date: 2017-12-18

AMD Radeon RX Vega M GH Graphics
Driver Version: 25.20.15002.58 DCH/Win 10 64
Date: 2018-12-06

Upon installing both of these drivers and rebooting the Hades Canyon, DaVinci Resolve will now finally load albeit performance is still something to be desired.
Jerry S.
Tokyo, Japan
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GermanJohn

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Re: No OpenCL GPU found

PostSun Jan 13, 2019 8:02 pm

Hey everyone,

thanks for your help!
I am using Ubuntu 18.04 (I usually post in Ubuntu specific forums, so I forgot to mention that).
It was indeed a driver "problem", in that the regular mesa driver didn't include OpenCL (see above).
Now if only I could find how to mark a thread as solved...
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GermanJohn

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Re: No OpenCL GPU found

PostMon Jan 14, 2019 11:47 am

Jerry Suppan wrote:
GermanJohn wrote:Upon installing both of these drivers and rebooting the Hades Canyon, DaVinci Resolve will now finally load albeit performance is still something to be desired.


Odd, that Vega M GPU should only be a little less powerful than my RX 480. When editing 1080p at least, I seem to have no performance issues. Are you sure it's using the AMD GPU instead of the Intel?

Or maybe we just have different demands, mine are fairly basic...
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Carsten Sellberg

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Re: No OpenCL GPU found

PostMon Jan 14, 2019 12:20 pm

Jerry Suppan wrote:Update
2019-01-14 11:00:53


Upon installing both of these drivers and rebooting the Hades Canyon, DaVinci Resolve will now finally load albeit performance is still something to be desired.



Hi.

Are you sure that You are uing ONLY the AMD Radeon RX Vega M GH Graphics and not ALSO the Intel Graphics 630 for Resolve?

But in Resolve the CPU is used to run the app, disk I/O and compression and decompression of codecs.
Resolve does all its image processing in the GPU on the graphics card. More CUDA/OpenCL Cores are better.

And the AMD Radeon RX Vega M GH Graphics have only 4 GB VRam and a very low number of OpenCL cores.

I wonder what resolution and codec you are using?

Regards Carsten.
URSA Mini 4.6K

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