When Line Height is set to 1.4, there's an extra gap at the bottom

[ni554n]

Windows Terminal version

1.21.10351.0

Windows build number

10.0.22631.0

Other Software

No response

Steps to reproduce

In Windows Terminal settings Defaults > Appearance page, set:

1. Window Padding: 0
2. Font face: JetBrains Mono
3. Font size: 12
4. Line height: 1.4
5. Restart Terminal

• My laptop display scaling is set to 125%

Expected Behavior

When Line height is set to 12, 13, or 15:

Neovim

Actual Behavior

When Line height is set to 14:

Neovim

[canh25xp]

I think this is normal behaviour, since the terminal must display a round number of lines, so if your screen height is not divisible by your font size, it gonna result in the last line being truncated. You can try and calculate your self:

First calculate the font height in pixel

font height =  12 * 4/3 * 1.4 * 1.2

Then divide your screen height by the font height:

number of lines = (screen height)/(font height)

Then compare with the actual buffer size of your terminal (you should do this in a full screen), assuming you using powershell:

$Host.UI.RawUI.BufferSize

Note the buffer height, this is the actual number of lines that your terminal can display

Width Height
----- ------
  160     50

[ni554n]

Thanks for the detailed explanation. However, I'm confused about the terms used in the font height calculation.

font height =  12 * 4/3 * 1.4 * 1.2
font height =  font-size * display-aspect-ratio? * line-height * display-scaling-factor?

Additionally, my full-screen buffer size is:

Width Height
----- ------
  160     35

---

Through trial and error, I found that setting Startup > Launch Size Rows to 28 eliminates the gap. Any value above 28 (tested up to 38) results last line being truncated.