转贴：T400在win7系统下如何实现双显卡切换 [复制链接]

哪位先吃次螃蟹？仔细看过后，好像是T400用的。
T410的BIOS应该不会有Graphics Device switchable.哪位有T410的可以看看，如果是这样的话，那切换应该没戏了。除非联想发慈悲重新升级BIOS。

"Calpella Switchable Graphics Over on our forums and on thinkpads.com, there has been a lot of confusion over the graphics capabilities of our Calpella T Series systems. To be clear, the only 2010 ThinkPad system with switchable graphics capabilities is the ThinkPad T410s. The ThinkPad T410 and T510 and W510 are either integrated graphics only or discrete graphics only. It might be possible to do a hack to allow “cold” switching between the integrated graphics core on the CPU or the discrete graphics chip, but this is not something we’ll support or even say is possible on any given system. There is extra circuitry required to enable switching capability. For 2010, buy a T410s if you want switchable graphics capability from Lenovo. "
From http://lenovoblogs.com/insidethebox/?p=406

T410 根本就没有双显卡硬件，他就只有一块独立显卡。bios中当然不会有相关选项。

T410s 独显版本倒是双显卡设计的。