Date: Mon, 26 Feb 2018 14:15:58 -0300 From: Claudio André <claudioandre.br@...il.com> To: john-users@...ts.openwall.com Subject: Re: "No OpenCL devices was found" and "dri2 connection failed!" errors, when using NVidia gpus > Any idea what may be causing `No OpenCL devices was found` and `X server > found. dri2 connection failed!` errors when trying to use NVidia cards? I bet you have more than one OpenCL implementation installed (could be mesa, pocl, ...) You can try to get more information doing something like this: (try 0, then 1,2, ...) `john --verbosity=5 --list=opencl-devices --device=0` And, `_SKIP_OCL_INITIALIZATION=1 john --verbosity=5 --list=opencl-devices` --- If nothing shines, you could also post the result of: lspci -k | grep -iA 3 vga dnf list installed | grep opencl | sort dnf list installed | grep beignet | sort Claudio
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