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A comment on How I built a keyboard/video/mouse switch for my two 4k monitors. Parent comment

Re:How I built a keyboard/video/mouse switch for my two 4k m... by formerly_proven on Thursday September 03, 2020 @10:05AM (#24364154)
Disable all power saving / standby features and never turn the screens off manually or cut their power while the PC is on.
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Re:How I built a keyboard/video/mouse switch for my two 4k m... by formerly_proven on Thursday September 03, 2020 @12:09PM (#24365494)
And perhaps a little unpaid ad:

> PS: A Japenese entrepeneur sells DPHPDMA devices, which are little dongles plugged directly into a Displayport output and contain a microcontroller powered by DP_PWR, which intercepts the EDID communication etc. and essentially performs EDID emulation in hardware (since GPU manufacturers disable software EDID emulation for consumer cards). They're like 50 bucks plus international shipping each.

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