Tobias (DH1TW)

3 minute read

40 inch TV desktop monitor

My standard development environment was for some years a 24” standard HD monitor together with the 15” Retina display from my Macbook Pro. Recently I felt more and more frustrated about continous window tabbing. The available screen estate was just not enough anymore.

In my search for a bigger screen, I wondered if it wouldn’t be possible to use a 4k TV instead of a pair of > 28” PC monitors. The advantage of the 4K display is of course its resolution of 3840px x 2160px and much more afforable price than a comparable set of PC monitors.

There are several things to consider when upgrading to 4k displays, but in my case, everything worked out well - almost out of the box. I couldn’t be happier with the result!

Resultion and screen size

If you want more screen estate (more pixels), you also need the physical space to display them somewhere. I love my Macbook’s 15” Retina display, but it doesn’t provide much more screen estate than any other 15” display. Running the MPB in its native resolution makes everything way too small. Thats why the desktop content is scaled up to an actually sane size.

You have the same problems with any 4K display, smaller than 40”. The native resolution results in too small icons and fonts. It has to be scaled up, which then means that your screen estate shrinks.

The Monitor

Almost everyday, more 4K are thrown on the market. I went for the Samsung 40” UE40JU6500 and paid in July 2016 around 650€. It’s a curved TV with an IPS panel. After having this display now in use for a couple of month, I think the curved model is actually not worth the 100€ extra I spent on it. The IPS panel by itself provides already a very wide viewing angle.

Graphics card

If you decide to go for a 4K Monitor, make sure that your graphics card actually supports it. You will need HDMI 2.0, anything below won’t get you the desired result. Be aware that HDMI 1.4 can display 4K, but only at a framerate of 30Hz. Trust me, working on a 30Hz display is not fun at all.

So you want to make sure that your graphics card is capable of full 4k, at 60 Hz without color compression (4:4:4).

Connecting the Macbook to the 4K Display

The HDMI port of my Macbook Pro (Mid 2014) only supports HDMI 1.4. but fortunately, it has 2x Mini-Displayport plugs which support 4K. I found the a nifty Mini-Displayport to HDMI 2.0 adapter [Club 3D CAC-1170]]1 which does exactly what it promisses. Be aware that there are plenty of adapters out there which do not fullfill what their specs actually claim.

Out of the box the monitor (with the adapter) was only recognized as a 4K display in 30Hz mode. After installing SwitchResX, I have 4K, 60Hz, 4:4:4 ever since :-)

Summary

I’m more than happy with my new Setup. 3840px x 2160px provide an incredible amount of screen estate and I barely have to switch between windows anymore. However I had to do quite a lot of research and I probably was also a bit lucky that the Samsung Monitor and the adapter worked almost out of the box with my Macbook Pro.

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