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|Thursday, January 28, 2016|
I've been depressed that my Macs won't display 2560x1440 on my 27" monitor. It's not a huge deal, and I realize I'm in an insanely small market -- folks using VGA based KVM switches in 2016 -- but rereading the "35 Days Against DRM" article I've got linked from the banner that's currently at the top of my blog again, I've started wondering...
See, it's not that you can't do 2560x1440 over VGA. My Lenovo and whitebox tower both do it, no problems.* And it's not exactly a DisplayPort issue, as you can get larger resolutions out in other, admittedly digital, formats.
So I'd assumed Macs don't do high resolutions over VGA for one of two reasons:
2. What is the maximum resolution available for use with the Apple Mini DisplayPort to VGA adapter?
This question wouldn't be here if they didn't realize VGA can go much higher, which is no big surprise.
But is it really a case of either lazy engineers (bad driver) or cheap hardware (bad adapter)?
The other shoe
It makes me wonder if 3rd party USB-C adapters will be similarly limited. If my new guess here is right, they would.
I wonder if this isn't a DRM thing. From the FSF's page (pubbed in 2008):
The new MacBooks contain a hardware chip that prevents certain types of display being used, in an effort to plug the analog hole. Devices such as the HDfury can get around this, but this adds greater cost and inconveinience [sic] to what should be a relatively simple procedure. [emphasis mine]
I wonder if Apple's got some deal that makes it so that they can't allow analog high-definition output (or any content sans DRM) from their machines. That'd make some sense as part of their iTunes deals, perhaps. I'm also suspicious this is why Apple laptops lost their line-in port, so that you can't record what you watch/consume directly, so no Spotify rips, for example. Seems like another really small market, but it's one that Rogue Amoeba figured was worth pursuing, and recently.
* Okay, that's not completely true. The integrated graphics in my ASRock mobo, for whatever reason, wouldn't go 2560x1440, so I stuck a dedicated card (whose 3DMark score was lower than the integrated graphics!) in there which would.
posted by ruffin at 1/28/2016 09:54:00 AM
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