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Is it theoretically possible for a cheapo Mini DisplayPort to HDMI cable or adapter to support resolutions above 1920 × 1200, e.g. 2560 × 1440 (QHD)? If you mean with cheap: Passive adaptors which are usually sold cheap. Then yes. Max output from the port will be 1920x1200. If you mean with cheap: Cheapest active cable: No. Display port can output ...


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I have a Macbook Pro 2015 model and 2 K272HUL monitors that are chained. Macbook mini DP to Monitor 1 DP in -> Monitor 1 DP out to Monitor 2 DP in. Doesn't work. When I called Acer support, they said that it works fine on Windows but they haven't tested on Mac. When I called Apple Support (case #1107920040), they tried to reset and it didn't work. ...


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Yes you can. You can use a most generic DP to DP cable to connect to one of the DisplayPorts 2, or a DP to mini-DP cable to Mini DisplayPort port(s) 1, or even a passive DP to HDMI cable to one of the HDMI ports 2 (since HDMI 1.3 supports up to 2560x1600@60Hz, which is the optimal mode of Dell U2715H). EDIT: FWIW, one of the DisplayPorts 2 of U2715H is ...


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So I got a mini display port to HDMI cable + a HDMI to display port adapter. It does not work. It all seems to fit fine, but the monitor is blank. Because it isn't an "HDMI to DP" adapter, but a "DP++ to HDMI" adapter, which picks (ONLY) the TMDS signal (what HDMI uses) output from a DP++ source to an HDMI sink (e.g. monitor). So I got a mini ...


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Since HP's cable is bloody expensive, you can add the pull-up inside the monitor itself. This allows it to work with any DP cable. The pull-up that worked for me was 10k (even if the specs say it should be 100k - I tried and the monitor wasn't detected). Solder it between C278 (it's connected to DP pin 17, AUXn) and unfitted nearby resistor that goes to DP ...



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