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290x el capitan minor issues after seitching to dp monitor


adgenet
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Hi all, I've had a 290x running flawlessly with my dl-dvi 1440p monitor for quite a while now with no issues (up to and including the latest public beta el capitan).

Runs great with full accel without any framebuffer patching in clover. just plug and play.

 

The other day though, I bought a 4k monitor (lg 27mu67) which connects via displayport and came across two annoying issues.

 

1. quicktime player no longer opens any mp4 video files that used to work just fine.

It will give a cryptic error and some negative number error code.

 

2. I don't see any of the hidpi settings in the display control panel.

Setting a lower resolution looks like it's actually setting that resolution and not a scaled mode.

"normal" 4k on a small(ish) monitor like this is incredibly hard to use and I'd like to run a hidpi mode.

 

Anybody have any suggestions?

 

Edit: "I'm an idiot" is basically the answer to all of this. For those interested, the hidpi mode was working but preview.app would not show images with their pixels 1:1 which is poor behavior in my opinion. My quicktime problem was caused by accidentally ruining my applehda setup.

Sorry for the spam.

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