Indian (Lohit) fonts from Fedora render half height for some text

[Strykar]

Text appears fine paste in a browser, but when I paste into kitty, it appears:

Some chararcters in a word appear half height, what am I missing here?

kitty --debug-font-fallback
[0.132] Text fonts:
[0.132]   Normal: CascadiaMonoRoman-Regular: /usr/share/fonts/TTF/CascadiaMono.ttf:262144
Features: ()
[0.132]   Bold: CascadiaMonoRoman-SemiBold: /usr/share/fonts/WOFF2/CascadiaMono.woff2:327680
Features: ()
[0.132]   Italic: CascadiaMono-Italic: /usr/share/fonts/TTF/CascadiaMonoItalic.ttf:262144
Features: ()
[0.132]   Bold-Italic: CascadiaMono-SemiBoldItalic: /usr/share/fonts/TTF/CascadiaMonoItalic.ttf:327680
Features: ()
[1.619] U+939 U+93f Face(family=Lohit Devanagari style=Regular ps_name=Lohit-Devanagari path=/usr/share/fonts/TTF/Lohit-Devanagari.ttf ttc_index=0 variant=False named_instance=False scalable=True color=False)
[1.619] U+928 U+94d U+926 U+940 using previous fallback font at index: 0
[1.620] U+9ad U+9be Face(family=Lohit Bengali style=Regular ps_name=Lohit-Bengali path=/usr/share/fonts/TTF/Lohit-Bengali.ttf ttc_index=0 variant=False named_instance=False scalable=True color=False)
[1.620] U+9b7 U+9be using previous fallback font at index: 1
[1.621] U+a97 U+ac1 Face(family=Lohit Gujarati style=Regular ps_name=Lohit-Gujarati path=/usr/share/fonts/TTF/Lohit-Gujarati.ttf ttc_index=0 variant=False named_instance=False scalable=True color=False)
[1.621] U+a9c using previous fallback font at index: 2
[1.621] U+ab0 U+abe using previous fallback font at index: 2
[1.622] U+aa4 U+ac0 using previous fallback font at index: 2
[1.622] U+ba4 Face(family=Lohit Tamil style=Regular ps_name=Lohit-Tamil path=/usr/share/fonts/TTF/Lohit-Tamil.ttf ttc_index=0 variant=False named_instance=False scalable=True color=False)
[1.623] U+bae U+bbf using previous fallback font at index: 3
[1.623] U+bb4 U+bcd using previous fallback font at index: 3
[1.623] U+c95 Face(family=Lohit Kannada style=Regular ps_name=Lohit-Kannada path=/usr/share/fonts/TTF/Lohit-Kannada.ttf ttc_index=0 variant=False named_instance=False scalable=True color=False)
[1.624] U+ca8 U+ccd using previous fallback font at index: 4
[1.624] U+ca8 using previous fallback font at index: 4
[1.624] U+ca1 using previous fallback font at index: 4
[1.625] U+c24 U+c46 Face(family=Lohit Telugu style=Regular ps_name=Lohit-Telugu path=/usr/share/fonts/TTF/Lohit-Telugu.ttf ttc_index=0 variant=False named_instance=False scalable=True color=False)
[1.625] U+c32 U+c41 using previous fallback font at index: 5
[1.626] U+c17 U+c41 using previous fallback font at index: 5
[1.626] U+d2e Face(family=Lohit Malayalam style=Regular ps_name=Lohit-Malayalam path=/usr/share/fonts/TTF/Lohit-Malayalam.ttf ttc_index=0 variant=False named_instance=False scalable=True color=False)
[1.627] U+d32 using previous fallback font at index: 6
[1.627] U+d2f U+d3e using previous fallback font at index: 6
[1.627] U+d33 U+d02 using previous fallback font at index: 6
[1.629] U+a2a U+a70 Face(family=Lohit Punjabi style=Regular ps_name=Lohit-Punjabi path=/usr/share/fonts/TTF/Lohit-Punjabi.ttf ttc_index=0 variant=False named_instance=False scalable=True color=False)
[1.629] U+a1c U+a3e using previous fallback font at index: 7
[1.630] U+a2c U+a40 using previous fallback font at index: 7
[1.630] U+b13 Face(family=Lohit Oriya style=Regular ps_name=Lohit-Oriya path=/usr/share/fonts/TTF/Lohit-Oriya.ttf ttc_index=0 variant=False named_instance=False scalable=True color=False)
[1.631] U+b21 U+b3c U+b3f using previous fallback font at index: 8
[1.631] U+b06 using previous fallback font at index: 8
[1.632] U+924 U+941 using previous fallback font at index: 0
[1.632] U+92e using previous fallback font at index: 0
[1.633] U+91a U+902 using previous fallback font at index: 0
[1.633] U+938 U+94d U+935 U+93e using previous fallback font at index: 0
[1.634] U+917 using previous fallback font at index: 0
[1.634] U+924 using previous fallback font at index: 0
[1.634] U+906 using previous fallback font at index: 0
[1.635] U+939 U+947 using previous fallback font at index: 0
[1.636] U+939 U+93f U+902 using previous fallback font at index: 0
[1.636] U+926 U+940 using previous fallback font at index: 0
[1.637] U+92a using previous fallback font at index: 0
[1.637] U+915 U+93e using previous fallback font at index: 0
[1.637] U+939 U+948 using previous fallback font at index: 0
[1.638] U+930 U+93e using previous fallback font at index: 0
[1.638] U+920 U+940 using previous fallback font at index: 0
[1.639] U+1f524 emoji_presentation Face(family=Noto Color Emoji style=Regular ps_name=NotoColorEmoji path=/usr/share/fonts/noto/NotoColorEmoji.ttf ttc_index=0 variant=False named_instance=False scalable=False color=True)
[1.640] U+1f1ee emoji_presentation using previous fallback font at index: 9
[1.640] U+928 using previous fallback font at index: 0
[1.640] U+938 U+94d U+924 U+947 using previous fallback font at index: 0
[1.641] U+1f1e7 emoji_presentation using previous fallback font at index: 9
[1.642] U+9b8 U+9cd U+9ac U+9be using previous fallback font at index: 1
[1.642] U+997 using previous fallback font at index: 1
[1.642] U+9a4 using previous fallback font at index: 1
[1.643] U+9ae using previous fallback font at index: 1
[1.643] U+a86 using previous fallback font at index: 2
[1.643] U+aaa using previous fallback font at index: 2
[1.644] U+aa8 U+ac1 U+a82 using previous fallback font at index: 2
[1.644] U+ab8 U+acd U+ab5 U+abe using previous fallback font at index: 2
[1.644] U+a97 using previous fallback font at index: 2
[1.645] U+aa4 using previous fallback font at index: 2
[1.645] U+a9b U+ac7 using previous fallback font at index: 2
[1.645] U+bb5 using previous fallback font at index: 3
[1.645] U+ba3 using previous fallback font at index: 3
[1.646] U+b95 U+bcd using previous fallback font at index: 3
[1.646] U+b95 using previous fallback font at index: 3
[1.646] U+bae U+bcd using previous fallback font at index: 3
[1.647] U+cae using previous fallback font at index: 4
[1.647] U+cb8 U+ccd using previous fallback font at index: 4
[1.647] U+c95 U+cbe using previous fallback font at index: 4
[1.648] U+cb0 using previous fallback font at index: 4
[1.648] U+c28 using previous fallback font at index: 5
[1.648] U+9ac U+9be U+982 using previous fallback font at index: 1
[1.649] U+9b2 U+9be using previous fallback font at index: 1
[1.649] U+1f9e0 emoji_presentation using previous fallback font at index: 9
[1.649] U+1f30d emoji_presentation using previous fallback font at index: 9
[2.087] U+939 U+93f U+902 bold using previous fallback font at index: 0
[2.088] U+926 U+940 bold using previous fallback font at index: 0
[2.089] U+9ac U+9be U+982 bold using previous fallback font at index: 1
[2.090] U+9b2 U+9be bold using previous fallback font at index: 1
[2.091] U+a97 U+ac1 bold using previous fallback font at index: 2
[2.092] U+a9c bold using previous fallback font at index: 2
[2.093] U+ab0 U+abe bold using previous fallback font at index: 2
[2.094] U+aa4 U+ac0 bold using previous fallback font at index: 2
[2.095] U+ba4 bold using previous fallback font at index: 3
[2.096] U+bae U+bbf bold using previous fallback font at index: 3
[2.097] U+bb4 U+bcd bold using previous fallback font at index: 3
[2.097] U+c95 bold using previous fallback font at index: 4
[2.098] U+ca8 U+ccd bold using previous fallback font at index: 4
[2.099] U+ca8 bold using previous fallback font at index: 4
[2.099] U+ca1 bold using previous fallback font at index: 4
[2.100] U+c24 U+c46 bold using previous fallback font at index: 5
[2.101] U+c32 U+c41 bold using previous fallback font at index: 5
[2.101] U+c17 U+c41 bold using previous fallback font at index: 5
[2.102] U+d2e bold using previous fallback font at index: 6
[2.102] U+d32 bold using previous fallback font at index: 6
[2.103] U+d2f U+d3e bold using previous fallback font at index: 6
[2.103] U+d33 U+d02 bold using previous fallback font at index: 6
[2.104] U+a2a U+a70 bold using previous fallback font at index: 7
[2.104] U+a1c U+a3e bold using previous fallback font at index: 7
[2.104] U+a2c U+a40 bold using previous fallback font at index: 7
[2.105] U+b13 bold using previous fallback font at index: 8
[2.105] U+b21 U+b3c U+b3f bold using previous fallback font at index: 8
[2.106] U+b06 bold using previous fallback font at index: 8
[2.106] U+1f9e0 bold emoji_presentation using previous fallback font at index: 9
[2.106] U+1f30d bold emoji_presentation using previous fallback font at index: 9
[2.977] U+1f524 bold emoji_presentation using previous fallback font at index: 9
[2.979] U+1f1ee U+1f1f3 bold emoji_presentation using previous fallback font at index: 9
[2.980] U+928 bold using previous fallback font at index: 0
[2.980] U+92e bold using previous fallback font at index: 0
[2.980] U+938 U+94d U+924 U+947 bold using previous fallback font at index: 0
[2.981] U+924 U+941 bold using previous fallback font at index: 0
[2.981] U+91a U+902 bold using previous fallback font at index: 0
[2.981] U+938 U+94d U+935 U+93e bold using previous fallback font at index: 0
[2.981] U+917 bold using previous fallback font at index: 0
[2.982] U+924 bold using previous fallback font at index: 0
[2.982] U+906 bold using previous fallback font at index: 0
[2.982] U+939 U+947 bold using previous fallback font at index: 0
[2.983] U+1f1e7 U+1f1e9 bold emoji_presentation using previous fallback font at index: 9
[2.984] U+9b8 U+9cd U+9ac U+9be bold using previous fallback font at index: 1
[2.984] U+997 bold using previous fallback font at index: 1
[2.984] U+9a4 bold using previous fallback font at index: 1
[2.984] U+9ae bold using previous fallback font at index: 1
[2.985] U+a86 bold using previous fallback font at index: 2
[2.985] U+aaa bold using previous fallback font at index: 2
[2.985] U+aa8 U+ac1 U+a82 bold using previous fallback font at index: 2
[2.986] U+ab8 U+acd U+ab5 U+abe bold using previous fallback font at index: 2
[2.986] U+a97 bold using previous fallback font at index: 2
[2.986] U+aa4 bold using previous fallback font at index: 2
[2.986] U+a9b U+ac7 bold using previous fallback font at index: 2
[2.987] U+bb5 bold using previous fallback font at index: 3
[2.988] U+ba3 bold using previous fallback font at index: 3
[2.988] U+b95 U+bcd bold using previous fallback font at index: 3
[2.988] U+b95 bold using previous fallback font at index: 3
[2.989] U+bae U+bcd bold using previous fallback font at index: 3
[2.989] U+cae bold using previous fallback font at index: 4
[2.989] U+cb8 U+ccd bold using previous fallback font at index: 4
[2.989] U+c95 U+cbe bold using previous fallback font at index: 4
[2.990] U+cb0 bold using previous fallback font at index: 4
[2.990] U+c28 bold using previous fallback font at index: 5
[2.990] U+1f1ee U+1f1f3 emoji_presentation using previous fallback font at index: 9
[2.991] U+1f1e7 U+1f1e9 emoji_presentation using previous fallback font at index: 9
[2.991] U+c2e using previous fallback font at index: 5
[2.991] U+c38 U+c4d using previous fallback font at index: 5
[2.992] U+c24 U+c47 using previous fallback font at index: 5
[2.992] U+d28 using previous fallback font at index: 6
[2.993] U+d38 U+d4d U+d15 U+d3e using previous fallback font at index: 6
[2.993] U+d30 U+d02 using previous fallback font at index: 6
[2.994] U+a38 using previous fallback font at index: 7
[2.994] U+a24 using previous fallback font at index: 7
[2.994] U+a38 U+a4d using previous fallback font at index: 7
[2.994] U+a30 U+a40 using previous fallback font at index: 7
[2.995] U+a05 using previous fallback font at index: 7
[2.995] U+a15 U+a3e using previous fallback font at index: 7
[2.995] U+a32 using previous fallback font at index: 7
[2.996] U+b28 using previous fallback font at index: 8
[2.996] U+b2e using previous fallback font at index: 8
[2.996] U+b38 U+b4d U+b15 U+b3e using previous fallback font at index: 8
[2.997] U+b30 using previous fallback font at index: 8
[3.750] U+c38 U+c4d U+c24 U+c47 using previous fallback font at index: 5

[kovidgoyal]

yes that is because those glyphs dont fit in a single cell. they need to be spread over multiple cells, but that can only be done by an actual terminal program like an editor or similar using the kitty text sizing protocol. Hopefully eventually programs will get around to implementing it.

[Strykar]

Thank you!
If I understand you correctly, the only workaround now is to use Noto?

[kovidgoyal]

There is no worakaround now, short of writing your own program to display indic text using the text sizing protocol.