XRRGetScreenInfo causing freeze on certain machines

[Krasjet]

See DISTRHO/DPF#451 for details.

I suspect it has something to do with NVIDIA, though there is not yet a fix on there end even with the latest driver. Probably there is a way to avoid the call at initiation? I think the only usage I see will work without xrandr.

pugl/examples/pugl_shader_demo.c

Line 466 in e33b2f6

const int refreshRate = puglGetViewHint(app->view, PUGL_REFRESH_RATE);