On Sat, Feb 4, 2017 at 4:44 AM, Sylvain Munaut 246tnt@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.