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I came here though a google query "displayport sound gone", and wanted to leave a solution that worked for me. After running a driver update, for some reason the playback device was disabled under the device manager. Simply re-enabling it fixed my problem.


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It says in this FAQ Q: What graphics cards support NVIDIA G-SYNC technology? A: Any GeForce GTX 650 Ti BOOST or higher GeForce GTX graphics card with a DisplayPort output is required. Keep in mind that you another requirement is Windiws 7, 8 or 8.1 The second screen will work through DVI but of course without G-SYNC since it is only available through ...


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You need a DisplayPort male to mini DisplayPort female adapter. It looks like StarTech makes one.


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PROBLEM SOLVED!!! I had exactly the same problem: Acer B276HUL recognized by OSX (Yosemite on 27" iMac Late 2010) but no picture displayed. Boot with Windows (Luckily, I had Bootcamp Enabled with Windows 7). With Windows 7 B276HUL worked without any issue Go to Acer Menu Display Settings/DP/ and select DP 1.1 instead of DP 1.2 Reboot with OSX and problem ...


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For a while you are able to list all DP 1.2 MST capable devices on displayport.org. Just select the DP Displays Multi-Stream option.


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For me, I am on Windows 8 and my monitor (connected by DisplayPort) was automatically turning off every time I locked my PC, after a 60 second delay, which produced the issue described in this question. The other suggestions in this Q&A weren't workable for my monitor (Samsung 4K UHD 28” Monitor U28D590D). I was able to successfully work around it by ...


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There is no fix for this. Someone has decided that this is what you want, so this is what you get. The behaviour is baked into Windows and you cannot override it. A real deal-breaker for multi-monitor users, this one... you can stick with DVI if you don't need 4K 60fps, I suppose. That's what I do.


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For what it's worth, a day after I posted this question, nVidia released a new version of their driver, and I never saw the problem again. The keyboard would occasionally drop out on me while playing games on the PC, so I've abandoned the KVM anyway, but I'm fairly certain that the video problem was fixed by the driver update.


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Try this: Go to Control Panel> Power Options. Edit the plan you use by clicking Change Plan Settings. Once here click Change Advanced Power Settings. Once there, go to USB Settings, open the menu by clicking the +, and open the next menu named USB Selective Suspend Setting. Disable it. Once this is disabled, Windows 7 will no longer adjust your ...



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