Is it legal to do this to blank the display? blank - eglShowSurfaceMESA(display, screen, surface, EGL_NO_MODE_MESA); unblank - eglShowSurfaceMESA(display, screen, surface, previous_mode); Or is it required that EGL_NO_SURFACE be used with EGL_NO_MODE_MESA? -- Jon Smirl jonsmirl at gmail.com