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Hardware / Re: Displayport?
« on: August 05, 2022, 11:12:58 am »Quote
Just wondering about others experience with Displayport and OS/2. Perhaps a monitor that supports Displayport would be better, it seemsI'm using DP out to DP in on the monitor since a while on this system. But I disabled all screen saving software long ago cause it didn't work. When I've the need for power saving (and don't wanted to switch off the whole system) I switch of the monitor with its remote control. Switching on afterwards works with OS/2. But not with Win7. As this simple test does not even work with Win I never tried to test anymore off this stuff.
Screen saver, actually switching monitor power on/off, never worked on this system. It worked on my old system when I patched black10x.zip to write the proper registers of my old ATI300 graphic card. But never on this newer system. Either with integrated (Intel) graphic nor with the PCIe Radeon 550.
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that Displayport falls back to a DVI compatible protocol when used with a passive converter.This is a feature of your motherboard/graphic chip. The signals are different between DP and DVI. Your mobo detects the DVI adapter and tells the graphic chip and the output transmitter to switch signals to DVI standard. That's a feature of some mobos/graphic cards but not mandatory. Your DP output at your mobo emulates DVI signals when you put a passive adapter on that. But it does not make a real fully compatible DVI interface out of it.
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forcing a reboot to awaken it.Maybe it's enough to disconnect the passive adapter and reconnect it again. But as it's an emulated DVI it will work different on different mobo/graphic cards. I think you would need reports from people with exactly the same motherboard.