Comment 165 for bug 312756

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aesop (peteriva) wrote : Re: support graphics card hot switch

I have a acer TravelMate (Timeline) 8471G with Intel HD4500 and ATI HD4330 switchable Graphics. My Bios-Version is 1.27. I can only change to switchable and discrete graphics in Bios. Ubuntu only works with the "discrete" option where the ATI graphics card is on. (01:00.0 VGA compatible controller: ATI Technologies Inc M92 LP [Mobility Radeon HD 4300 Series])

I have attached my DSDT.dat