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Raj Bhattacharjea raj.b at gatech.eduOn Sat, Feb 4, 2017 at 4:44 AM, Sylvain Munaut <246tnt at gmail.com> wrote: > Hi, > > >> I'm using the latest fosphor from git > >> (7b6b9961bc2d9b84daeb42a5c8f8aeba293d207c) and am seeing two weird > (and I > >> believe related) issues. Firstly, I see the following error: > >> > >> [+] Selected device: TITAN X (Pascal) > >> [!] CL Error (-30, /home/user/gr-fosphor/lib/fosphor/cl.c:409): Unable > to > >> queue clear of spectrum buffer > > > > That's really weird indeed. Although I've seen it before. Can't > > remember exactly what it was though ... > > Actually the reason I'm not seeing it anymore on my setup is because I > don't have any machine with CL/GL sharing working any more ... I > changed laptop since and I can't get CL/GL sharing working with > optirun and recent nvidia drivers ... > > One thing I would point out though is that if you have CL/GL sharing > working, you can pretty much comment the entire call to > cl_queue_clear_buffers because the GL side of things will clear the > buffers already and they are the same. The independent clearing of the > CL buffers only matter if they're different. > I'll comment out that call for my purposes and let you know how that goes. My guess is that resolves the -30 error but not the blocky/pixelated spectrum histogram. -- Raj Bhattacharjea, PhD Georgia Tech Research Institute Information and Communications Laboratory http://www.prism.gatech.edu/~rb288/ 404.407.6622 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/osmocom-sdr/attachments/20170205/c88c8ce9/attachment.htm>