NVidia driver installation under UEFI+CSM mode

[WangWentao]

I got a HP dv4 5306tx laptop with the UEFI+CSM mode enabled,  and succeeded in installation of fedora 18 i686.

However, I failed to install nvidia driver. After I installed NVIDIA-Linux-x86-319.60.run(no error), the X cannot be started until I restore open source driver.

I have no idea about the exact reason for this. Does UEFI+CSM prohibit loading of Nvidia driver? AFAIK, the CSM mode is compatible with untrusted soft, and my fedora is not installed in UEFI mode.

Any advice will be appreciated.
Thanks in advance.