<div class="gmail_quote">2010/11/4 Arthur Zhu <<a href="mailto:xiaoxiaomuyusajiangtian@gmail.com">xiaoxiaomuyusajiangtian@gmail.com</a>> <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> seems nothing special. you're right that I would have installed mesa7.9 in other place for testing. I'll reinstall ubuntu mesa version or remove it. Otherwise, I got libEGL warning: GLX: failed to create any config demo: eglInitialize failed when sets EGL_PLATFORM=x11 Thanks, Arthur </blockquote></div>