Comment 42 for bug 136853

@daniel durand, To have X non-frozen, add the option in driver EXA as already stated.
https://bugs.launchpad.net/xf86-video-siliconmotion/+bug/136853/comments/9

@Tormod Volden, yes, the system went completely frozen. No terminal, no alt+sysreq with "stock" xubuntu-9.04, it works with EXA although yesterday I installed the system for a friend don't know if it works flawless. I will report relative problems from the user.