TL;DR: Can i change the distance between the lines in Konsole without change the font size?

I have 2 computers both with Debian. Both have Konsole installed and use the same profiles (the files in ~/.local/share/konsole/) and both use monospace with a size of 7.
One with Debian Stretch and Konsole 16.12.0 installed. There the font spacing works like i want and it uses 10 pixel per line.
The second with Debian Buster and Konsole 18.04.0 installed. There the spacing between the lines is larger than i want and it uses 12 pixels per line. The size of the characters is the same as in version 16.12.0 with font size 7. When i change the font size to 6 version 18.04.0 uses only 10 pixels per line, but the characters are harder to read (not enough pixels) than the 16.12.0 version with font size 7.

I would like to have 10 per line on both versions, in combination with readable characters. Is there a way to do that?
Or another way to display as many lines as possible while still being readable?
Copying the /etc/fonts folder from Stretch to Buster did not help.

• Konsole Version 16.12.0 font size 7: 10 Pixel per line. Good
• Konsole Version 18.04.0 font size 7: 12 Pixel per line. Uses too much space. Characters look good (same as above).
• Konsole Version 16.12.0 font size 6: 9 Pixel per line. Characters too small.
• Konsole Version 18.04.0 font size 7: 10 Pixel per line. Characters too small (same as above).

The Appearance section of my .profile-file.

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[Appearance]
AntiAliasFonts=false
ColorScheme=DarkPastels
Font=Monospace,7,-1,5,50,0,0,0,0,0


You can add the line

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LineSpacing=-1

(or any other negative number) to the [Appearance] section of the profile config file, but this will be overwritten if you change anything via the appearance settings dialog

Thank you. Added LineSpacing=-2 after the font settings and it works.

You can lock this settings down using [$i] after key name

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LineSpacing[$i]=-2

This should prevent the value from overwriting when using settings dialogs

Sorry, correction.
It works somewhat. But now there are cases (it seems random) where the line above overwrites some of the pixels of the chars a line below. How can i fix that? Because it worked in the old version.
If i see it correctly, it removes 2 lines of pixels above a character but it should be 1 above and 1 below. Now it is the case that if there is a line with a different background color, the highest pixel of the letters of this line are 1 pixel above the color and there are 1 pixels below the characters which still have the color of that line.

johannespfister wrote:/.../ It works somewhat. But now there are cases (it seems random) where the line above overwrites some of the pixels of the chars a line below. How can i fix that?

I'm afraid you can't. This with negative numbers for LineSpacing is a side effect. I suppose LineSpacing was originally intended for additional pixels between two lines. This is an amount of pixels added to y position where the next line is painted. Because each line may have one or two pixels of empty space below/above the text, this hack works for values of -1 or at most -2. For smaller values you will see the overlapping.

UPDATE ...

I checked the source code of konsole. The y-position for the next line is calculated with height() and ascent() returned from used font and the additional LineSpacing attribute.