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PC -> DP -> DP to DVI converter -> Dell Ultrasharp (Works fine) PC -> DVI -> Viewsonic (Works fine) PC -> DVI -> Samsung (doesn't work) The last monitor wouldn't pick up any signal and when I try to change any settings in the screen resolution, it just gives me unable to save settings This is pissing me off I'm right 97% of the time. Who cares about the other 4%
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| 08-11-2012, 01:55 PM | |
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Try using the HDMI output from the card instead of the DisplayPort. You may need an HDMI to DVI adapter or cable unless one of your monitors has an HDMI input. The goal being to determine if the problem is occurs when 3 monitors are connected to any of the interface or if it occurs only when the Display Port is in use.
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I had exactly the same problem and figured out it is was the cable not the motherboard! The spec for Displayport cables directs that pin 20 (power) should not be connected. However, many (cheaper) cables don't adhere to this. Some devices (esp Dell monitors and Gigabyte motherboards) fail completely in this situation - I assume other devices are somehow better configured to handle unexpected power being received, though it's hard to blame Gigabyte.
My solution was to break pin 20 in the cable connector (it's the bottom right pin looking in to the cable, with the 'U'-shaped grooves pointing downwards). A branded cable would also work. Maybe Gigabyte will also eventually update their BIOS to handle this (as of F14 it is not working), though it could also be a hardware problem that can never be fixed in BIOS. Also the engineers may never reproduce the issue in the lab if they are using 'proper' cables... |
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