X Window is sluggish in 10.2-R (nv server for GeForce 210)

[Jin Guojun]

A machine with AMD A8-6600K with Radeon + Nvidia GeForce 210 graphic card.It works with FreeBSD 8.4-R .. 10.1-R well; however, after upgraded to 10.2-R, 
X Window seems having problem in doing configuration and running server.
In X -configure, the xorg.conf.new generated correctly, but have error at the end says "number of screen s does not match number of devices. It found two screens and two devices (see log below), so not sure what is the problem.

When startx, moving window around and scrolling window (using sliding bar) are very sluggish.When exist X window, server generate a non-error error:
[  2700.740] (EE) Server terminated successfully (0). Closing log file.

Does this mean that a Xorg 7.7_2 has some defect?
Does anyone encounter the similar issue in 10.2-Release?
-Jin

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