As we debug into the code, we found that the calls of glreadpixels function returns a large number of pixels which value are '0'. It means that when the problem appear, the call of glreadpixels function will get wrong pixels from framebuffer. But we still confused why and when the problem will occurs. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180123/90c814a8/attachment.html>
