My biggest problem with 4K is the MST issues. I invested in a dell 4K 32" monitor and when I got it up and running, my monitor was acting like two monitors, side by side with a left and right panel. See my posting to the nvidia linux forum for the details.

https://devtalk.nvidia.com/default/topic/847041/my-tripple-mst-4k-display-setup/

I personally will never buy another bit of apple hardware because apple is "evil". They are a big online data monopoly and that's a whole other story I won't go into, so if your OK buying apple then go for it. I'm still waiting for a release of an nvidia driver which will properly support MST with the release of Xorg 18.

Good luck. Steve.

P.S. I've been so frustrated with this issue that I almost abandoned linux and was going to run windows 10 on my desktop. I compromised by running my monitors in DP 1.1 mode and run at 2560x1440 resolution, which in an odd way is a sweat spot for the desktop itself (I run gnome) since the ultra high dpi causes issues with fonts and icons being too small and there's another level of desktop configuration tweaking you have to go through.

On 01/04/2016 11:53 PM, Rich Braun wrote:
For a bit over a year, Apple has been shipping its 5K iMac with a 27" retina
display; last month they added their second-gen product in that line.

A couple weeks ago, I spotted the HP Envy model 34-a010 which has a 34"
monitor (funny aspect ratio, 3440x1440) and an NVIDIA graphics chip which
probably works out-of-the-box with Ubuntu and other distros. But at $1700 for
either of these two products, Apple's got by far the better hardware specs.

What's happening in the graphics-display industry? Suddenly Linux on the
desktop is losing the price competition, for probably the first time ever
since I started using it in 1992.

There's an all-out price/specs war going on among the panel manufacturers, and
there just doesn't seem to be a way I can plunk down $1500 to $2500 for a new
Linux-based computer with turn-key 4K+ 120Hz graphics.

Should I bite the bullet and go Apple, or wait a while longer for Linux to
catch up?

Have any of you built a DIY 4K display system that you're happy with, yet?
Life's too short to spend a weekend fiddling with X11 display settings,
swapping hardware, and returning stuff to Amazon.

-rich


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