Re: [Discuss-gnuradio] Issues with gr-fosphor in gnuradio

Hi Jose,

I had the same problem on a GTX 1050. I could work around it by setting FLG_FOSPHOR_USE_CLGL_SHARING in lib/fosphor/private.h to 0 as suggested here:

https://lists.osmocom.org/pipermail/osmocom-sdr/2017-June/001594.html

Hope it helps.

-Jeppe

On Wed, Aug 1, 2018 at 9:04 PM, Jose Ruvalcaba <joruvalc@gmail.com> wrote:

Hello,

I am experiencing an issue when running gr-fosphor in GNU Radio. I am getting the following issue when ever I run my flowgraph:

[+] Selected device: GeForce GTX 1080
[!] CL Error (-5, /home/ruvalcab/prefix/src/gr-fosphor/lib/fosphor/cl.c:480): Unable to share spectrum VBO into OpenCL context

I followed the install instructions for both the drivers and the gr-fosphor block as was instructed in the fosphor wiki page. When I run it, my Spectrum plot does not appear. I am currently running Ubuntu 16.04 LTS, GNU Radio 3.7.12 and I have a GeForce GTX 1080 GPU.

Has anyone seen this issue before, and if so, can't anyone shine some loft in how to go about solving it?

Thanks,

Jose

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Jeppe Ledet-Pedersen
Software Specialist

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