Onboard Video and Video Card - Dual usage
Hello all. I know this question has been covered at length, but I can't find a workable solution for my setup anywhere.
I have a dell 8500 (intel i5-3450 cpu) with an amd 5770 graphics card installed. I want to use two monitors, but can't because whenever I plug two monitors into the 5770, I get this strange interference/distorted signal on one or both of the monitors (best described as flickering). I have swapped cables, checked the connections, used the monitors on different pcs - the monitors are fine. It is something with the pci-e slot itself, I'm guessing, because I had the same issue when I swapped GPUs from another PC (same type of distortion).
I've decided to get around the inexplicable inability to use dual monitors from the card by using onboard graphics too. My problem: I can't get the onboard video and the gpu to work at the same time. I successfully enabled intel-multi-display in the BIOS. When i start the PC with a monitor plugged into the onboard port, I get that monitor to work. When I start the PC with a monitor plugged into the gpu, that one works. But if I plug in a second one, windows doesn't see it, regardless of which was plugged in first. I noticed that my device manager only shows the 5700 series under display adapters (no onboard video), even when I boot the PC with the monitor plugged straight into the onboard.
Do I have to unplug the GPU and install intel integrated drivers or something?
Hello all. I know this question has been covered at length, but I can't find a workable solution for my setup anywhere.
I have a dell 8500 (intel i5-3450 cpu) with an amd 5770 graphics card installed. I want to use two monitors, but can't because whenever I plug two monitors into the 5770, I get this strange interference/distorted signal on one or both of the monitors (best described as flickering). I have swapped cables, checked the connections, used the monitors on different pcs - the monitors are fine. It is something with the pci-e slot itself, I'm guessing, because I had the same issue when I swapped GPUs from another PC (same type of distortion).
I've decided to get around the inexplicable inability to use dual monitors from the card by using onboard graphics too. My problem: I can't get the onboard video and the gpu to work at the same time. I successfully enabled intel-multi-display in the BIOS. When i start the PC with a monitor plugged into the onboard port, I get that monitor to work. When I start the PC with a monitor plugged into the gpu, that one works. But if I plug in a second one, windows doesn't see it, regardless of which was plugged in first. I noticed that my device manager only shows the 5700 series under display adapters (no onboard video), even when I boot the PC with the monitor plugged straight into the onboard.
Do I have to unplug the GPU and install intel integrated drivers or something?
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