Thinkpads Forum

I've read about the T400 having switchable graphics

some screenshots show an option in the FN + F3 menu, were the user may select between two graphic modes - i do not have this option

i have a slider, and a button to select power scheme.

Some people suggest that the graphic cards will switch automatically based on the use... i just want to know or force which card im using...

the BIOS has 3 options - but selecting the Intel card wasn't a success... Windows never showed, only a black screen appeared !!


any suggestions ?

thanks.

Are you running XP or Vista?

comptiger5000 wrote:Are you running XP or Vista?

It's Vista Business

if you left click you should see an option switchable graphics. also its linked to the power options so if you use max performance you can use the discrete graphics, if u use power saving modes it switches to the on board graphics. if you don't see these options try reinstalling power mgt.

Now at last... i realize what i've done wrong... pressing the RIGHT mouse button, and not the LEFT mouse button ! DOH !


thank you - everything works beautifully now.

Bios settings: Switchable + enabled

Thanks for pointing that out!

I also thought the switchable graphics was out of action.

johnp126 wrote: also its linked to the power options so if you use max performance you can use the discrete graphics, if u use power saving modes it switches to the on board graphics. if you don't see these options try reinstalling power mgt.

I tried to reinstall pwr mgt software, but I still don't see any feature that allows me to bond graphic card to power plans...