fred Posted November 9, 2005 Share Posted November 9, 2005 I have a GMA 900 on board (asrock P4Dual915) and an ATI Radeon 9250 on AGP. I'd want to use 2 screen but when I try to detect tthe screens, system preferences don't see the other card. any idea ??? Link to comment https://www.insanelymac.com/forum/topic/4268-dual-screen-with-2-graphic-cards/ Share on other sites More sharing options...
jml401 Posted November 10, 2005 Share Posted November 10, 2005 most intel motherboards automatically disable the onboard video when an AGP addon card is inserted. In other words, you can't have both enabled at the same time unless you find some "creative" way to change this setting within the bios. This includes intel desktop motherboards with onboard GPUs such as the GMA 900, 845, Intel extreme, etc.. Another way to work around this is to find a cheap PCI addon vid card instead of an AGP one but i have yet to try this on my osx86 machine. Link to comment https://www.insanelymac.com/forum/topic/4268-dual-screen-with-2-graphic-cards/#findComment-27652 Share on other sites More sharing options...
fred Posted November 10, 2005 Author Share Posted November 10, 2005 It's only a bios option to choose : Enable/Disable/Automatic... So, I choosed to enable the onboard video card. I can choose the ati display too, but I don't have QE or CI enable with it. But if I start on this card, osx86 don't "see" my radeon... and I can't have dual (or tv) display. Anyone try dual screen with radeon 9250 ? The one with 2 (1 vga & 1 DVI) video out & 1 tv-out... ps : sorry for my bad english Link to comment https://www.insanelymac.com/forum/topic/4268-dual-screen-with-2-graphic-cards/#findComment-27698 Share on other sites More sharing options...
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