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AMD HD7950 radeon Sapphire felx version openCL crash

NNN634863802867218057
As recommanded on another post, I changed my graphic card to a AMD Sapphire HD7950 radeon flex graphic card. And C1 crashes when openCL is activated. With my former "little" V4900 acceleration didn't work but at least it didn't crash...

What to do ?
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  • Paul Steunebrink
    Check the driver version. From other threads here I understand that the AMD/ATI 13.4 is the latest but that 13.3 is currently better for CO 7.1.1.

    More here:
    viewtopic.php?p=67673#p67673
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  • Christian Gruner
    [quote="Paul_Steunebrink" wrote:
    Check the driver version. From other threads here I understand that the AMD/ATI 13.4 is the latest but that 13.3 is currently better for CO 7.1.1.

    More here:
    viewtopic.php?p=67673#p67673


    That is correct. For now you will need 13.3.
    13.4 will crash CO. A fix will out soon (but I can't give any eta)
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  • NNN634863802867218057
    I'm gonna check that right now
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  • NNN634863802867218057
    I only found a 13.3 beta3, the "normal" 13.3 doesn't seem to be available. And the beta 3 crashes also C1 and I don't see the acceleration. When I do the "test" of 100% zooming and adjusting contrast, it pixelises...
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  • Christian Gruner
    http://support.amd.com/us/gpudownload/w ... sta64.aspx try reverting back to 12.10 then.
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  • NNN634863802867218057
    It seems to work now. I need to test it further but didn't crash yet and I have the acceleration working wich makes a HUGE difference, in preview and in output file mode. Now I do not have anymore pixelizatrion.

    Much better !

    Thanks
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  • NNN634863802867218057
    I have a new problem : acceleration sometimes works, sometimes don"t work... I opend a case in the support line and they answer me that the 7950 card ios not a good choice. And you Christian told me it was 6 times faster than my V4900... Did I spênd 250 €for nothing on your advice ?
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  • Christian Gruner
    [quote="NNN634863802867218057" wrote:
    I have a new problem : acceleration sometimes works, sometimes don"t work... I opend a case in the support line and they answer me that the 7950 card ios not a good choice. And you Christian told me it was 6 times faster than my V4900... Did I spênd 250 €for nothing on your advice ?


    The card IS supported with a proper driver that doesn't crash Capture One. See my answer to the "sometimes work, sometimes not"-issue in your other thread.
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