Some questions, how to test GEM
1.
My motherboard on iG35 chipset(GMA X3500)
Xorg version currently installed 1.4.0.90
I build latest stable versions libdrm, mesa and latest linux-2.6.28-rc7
All work(except compiz+XV), but when start any ogl-application, i see message «Failed to initialize GEM. Falling back to classic»
I look into mesa-dri code part intel_screen.c:

if (intelScreen->driScrnPriv->dri2.enabled)
gem_supported = GL_TRUE;
else if (intelScreen->driScrnPriv->ddx_version.minor >= 9 &&
gem_kernel &&
intelScreen->front.bo_handle != -1)
gem_supported = GL_TRUE;
else
gem_supported = GL_FALSE;

and add additional messages for debug, then found that problem with intelScreen->front.bo_handle - its value -1. What does this mean and what I need to do GEM work?

2.
Is there hope to see OpenGL 2.0 on this chipset(currently only 1.4)?

3.
I also have eeePC with GMA900 - do give GEM any advantages on such graphics?