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Displays / Monitors

Also see

Minimum width: 1280px

  • Sites now are being unfriendly to smaller screens
  • Or treat smaller screens as mobile devices


My Preference: Ultrawide > 27" (2560x1440) > 4K


Window Management

3 Vertical Windows:

I like to split things into 3 windows.

  • Central: main window of focus
  • Left: Notes
  • Right: Documentation

The center is my focus, left and right are supporting material.


  • Great for comparing two things, and keeping notes centered


  • Can be too tall


  • 3x 24" 4K vertically oriented monitors
    • Breaks the limit of 1080px width
    • 24" when rotated
      • Height: 56cm
      • Width: 36cm

2 Vertical Windows

I tried this, but I like having one main thing in front of me that I can focus on.

4K (3840x2160)


I didn't like using 4K for my work (programming, documents).

Using at 4K:

  • Fonts are too small for me
  • I still reduce size to 2560x1440

MacBook allows me to push at:

  • 1920x1080
  • 2560x1440
  • 3008x1692
  • 3360x1890
  • 3840x2160

Scaling to 3360x1890 @27"

  • Feels like a lot happening at one time in a small space
  • Feels very compressed.
  • It's very tall, which can be useful.
  • Fonts are small.
    • Feels like it can be very straining over long period of time.
Resolution 1/2 1/3
3360x1890 1680x1890 1120x1890 1/3 resolution is ok size
3008x1692 1504x1692 1002x1682 1/3 resolution is awkward size


Resolution Pixel Per Inch Comment
3840x2160 140
3360x1890 122.5
110 Ideal
3008x1692 109 But awkward 1/3 size


If I can find a 35" 4K monitor. Pixel Per Inch: 109. I can use the full 4K at a comfortable display.

Seems I can fit a lot of vertical ext as well 2160px vs 1440px.

UWQHD (3440x1440) @ 34"

Ultra Wide Quad High Definition: 3440x1440


  • 1146x1440: if dividing by 3
    • Cons: Doesn't hit 1280px minimum


  • Single cable; if going USB-C
  • Can tile 3 windows vertically


  • Three vertically oriented displays
    • Pros:
      • Forces clear delineation between displays
    • Cons:
      • Bezels (can get smaller displays)
      • More cable/power management

32:10 3840x1200


  • 3x 1280


  • Samsung: 43" CJ890

32:9 (3840x1080, 5120x1440)



  • Samsung 49" LC49HG90DMNXZA
  • Cons:
    • Smaller resolution



  • 2x 2560x1440
    • 4 windows vertically at 1280 x 1440


  • Vertical window is 1280px
    • A little more spacious


  • 2x 27" 2560x1440
    • Cons:
      • More cables to manage
      • Bezel divided in the center



  • Setup an 8x4 grid

Vertical Orientation


  • 27" displays are too tall
  • 14" ideally
  • Cannot use 1920x1080 displays, as 1080 for the width would be too small
  • 2560x1440 displays, all come in 27" sizes


Dell U2717D: 2560x1440 @ 27"


  • I like the almost seamless bezels.

Panel Dimensions

  • Height: 33.33cm
  • Width: 60cm

Dell P2715Q: 4K (3840x2160) @ 27"


  • Bezels are big
  • Personal for me, I didn't use the 4k
  • 4K @ 60hz on MacBook Pro 2017 15" does not work as expected
    • Requires a USB-C to DisplayPort cable
    • Dongles (USB-HDMI) do not work
      • Output at 30hz

Dell U3419W: 3440x1440 @ 34"


  • USB-C charges my MacBook Pro 2017 15"
  • You can push audio to the screen
    • Audio is controlled on screen


  • Bottom Bezel has this plastic strip coming out
  • Wished the 2 usb ports on the side were on the back
  • Screen audio quality is flat, and muffled
  • It's a little "tight" when windows are vertically tiled for 3 windows at 1146px per window.
  • I think it could it be taller, by an inch or two.
    • Add more vertical pixels.

Panel Dimensions

  • Height: 33.33cm


Pixel Pitch / Pixel Per Inch

This is my personal preference. I notice I like it when the Pixel per inch is 109 (or a ratio of it). Anything higher than that is too small for my eyes.

Device Pixel Per Inch Pixel Pitch
MacBook Pro 2017 15" 220
Dell U2717D: 2560x1440 @ 27" 109 0.233mm
Dell U3419W: 3440x1440 @ 34" 109 0.233mm
Dell P2715Q: 4K (3840x2160) @ 27" 163 0.1554mm
Dell U3219Q: 4K (3840x2160) @ 32" 140 0.182mm

DisplayPort daisy-chaining (multistream / MST)

Macs do not support DisplayPort daisy-chaining (multistream / MST)

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