benosteen/opengles-book-samples — pull request #2 by spiff123 (2012-11-28 00:51:27+00:00)
Title: Black screen problem in Chapter 8 sample on raspberry pi

Like stated here
http://www.raspberrypi.org/phpBB3/viewtopic.php?f=33&t=7066,

I only replaced GLuint with GLubyte, and sample works again...

Would be nice to integrate it - searched for 2 hours for the solution...