How to stop switchable graphics from switching to high-power GPU when charging the laptop?

Posted by Saifallah on Super User See other posts from Super User or by Saifallah
Published on 2011-06-17T07:55:49Z Indexed on 2012/09/09 15:40 UTC
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windows-7

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graphics-card

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ati

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gpu

I've an Acer laptop with Windows 7 64 bit and an ATI Radeon HD 6550M Graphics card. Whenever I connect the power to charge the battery it automatically switches to the high-power GPU (ATI) instead of the low-power (Intel) GPU.

There's an option in the bios to stop such thing but it makes the GPU runs always on high-power and I can't switch to the low-power GPU.

How can I prevent the switchable graphics from automatically using the high-power GPU when charging?

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