hi, my gfx-card is i945G, while useing -vo gl/gl2 tearing is clearly visible. export __GL_SYNC_TO_VBLANK=1 doesn't work. dri works fine in glxinfo.(direct rendering: Yes) glxgears give out 1800 FPS whether set __GL_SYNC_TO_VBLANK=1 or =0. any suggestions? kofboy kofboy at 163.com 2007-01-24