How to disable Intel card (only use NVIDIA) ?

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https://bbs.archlinux.org – I have checked my bios again and no "Boot VGA Controller Selection" option. I will try http://ubuntuforums.org/showthread.php?t=1842294 and Arogers10's suggest. I'm using Backtrack 5 R3 KDE x64 but when I run "optirun glxspheres", i get poor performance (around 12-15 FPS with GT540M and "glxspheres" failed, strange). Perhaps I should get the latest Ubuntu 12.10. mysterious https://bbs.archlinux.org/profile.php?id=66501 2012-12-13T05:05:29Z (HowTos)