Noto Sans Mono doesn't declare spacing property

[antonio-rojas]

NotoSansMono-Regular.ttf
Version: 131072 from git b207fc3
Linux

Issue

The spacing property is not declared, so the font is not identified as monospace by some applications (eg. KDE konsole)

1. Steps to reproduce
   fc-scan /usr/share/fonts/noto/NotoSansMono-Regular.ttf | grep spacing
2. Observed results
   Nothing
3. Expected results
   spacing: 100 or spacing: mono

[ariasuni]

To be clear, this breaks my desktop: I can’t set Noto Sans Mono as the system monospace font so I need to configure all my applications by hand, and many cannot even use the font or breaks badly. The only way to make my desktop usable again was to downgrade the fonts.

[marekjez86]

@ariasuni : which version of Noto Sans Mono font gave a result for the following command
fc-scan /usr/share/fonts/noto/NotoSansMono-Regular.ttf | grep spacing
Could you upload it here or at least give me a version number?

[marekjez86]

@waksmonskiMT : Sue, could remind me, if Noto Sans Mono should (or should not) have spacing property set? I looked within Glyphs.app at the sources and for whatever I looked the non-condensed glyphs were 600 wide and condensed were 500. These all appeared to be constant, however I haven't looked at everything.

[ariasuni]

❯ fc-scan usr/share/fonts/noto/NotoSansMono-Regular.ttf 
Pattern has 24 elts (size 32)
        family: "Noto Sans Mono"(s)
        familylang: "en"(s)
        style: "Regular"(s)
        stylelang: "en"(s)
        fullname: "Noto Sans Mono Regular"(s)
        fullnamelang: "en"(s)
        slant: 0(i)(s)
        weight: 80(f)(s)
        width: 100(f)(s)
        foundry: "GOOG"(s)
        file: "usr/share/fonts/noto/NotoSansMono-Regular.ttf"(s)
        index: 0(i)(s)
        outline: True(s)
        scalable: True(s)
        charset: 
        0000: 00000000 ffffffff ffffffff 7fffffff 00000000 ffffffff ffffffff ffffffff
        0001: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
        0002: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
        0003: ffffffff ffffffff ffffffff fcffffff ffffd7f0 fffffffb ffffffff ffff0003
        0004: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
        0005: ffffffff 0000ffff 00000000 00000000 00000000 00000000 00000000 00000000
        001a: 00000000 00000000 00000000 00000000 00000000 7fff0000 00000000 00000000
        001c: 00000000 00000000 00000000 00000000 000001ff 00000000 00000000 00000000
        001d: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff f83fffff
        001e: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
        001f: 3f3fffff ffffffff aaff3f3f 3fffffff ffffffff ffdfffff efcfffdf 7fdcffff
        0020: ffffffff ffffffff ffffffff fff3ffdf 1fff7fff 7fffffff 00000000 00010000
        0021: ffffffff ffffffff ffffffff 00000000 00000210 00000000 00000000 00000000
        0022: 46000000 00000200 00000100 00000032 00000000 00000000 00000000 00000000
        0023: 00010000 00000003 00000000 00000000 00000000 00000000 00000000 00000000
        0025: ffffffff ffffffff ffffffff ffffffff ffffffff 00000001 00000000 00000000
        002c: 00000000 00000000 00000000 ffffffff 00000000 00000000 00000000 00000000
        002d: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ffffffff
        002e: ffffffff ffffffff 0000001f 00000000 00000000 00000000 00000000 00000000
        00a6: 00000000 00000000 ffffffff ffffffff ffffffff 00000000 00000000 00000000
        00a7: ffffffff ffffffff ffffffff ffffffff ffffffff 00ff7fff 00000000 ff800000
        00a9: 00000000 00004000 00000000 00000000 00000000 00000000 00000000 00000000
        00ab: 00000000 ffff0000 ffffffff 0000003f 00000000 00000000 00000000 00000000
        00fb: 0000007f 00000000 00000000 00000000 00000000 00000000 00000000 00000000
        00fe: 00000001 0000ffff 00000000 00000000 00000000 00000000 00000000 80000000
        00ff: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 30000000
(s)
        lang: aa|ab|af|ast|av|ay|az-az|ba|bm|be|bg|bi|bin|br|bs|bua|ca|ce|ch|chm|co|cs|cu|cv|cy|da|de|el|en|eo|es|et|eu|fi|fj|fo|fr|ff|fur|fy|ga|gd|gl|gn|gv|ha|haw|ho|hr|hu|ia|ig|id|ie|ik|io|is|it|kaa|ki|kk|kl|ku-am|kum|kv|kw|ky|la|lb|lez|ln|lt|lv|mg|mh|mi|mk|mo|mt|nb|nds|nl|nn|no|nr|nso|ny|oc|om|os|pl|pt|rm|ro|ru|sah|sco|se|sel|sh|shs|sk|sl|sm|sma|smj|smn|sms|so|sq|sr|ss|st|sv|sw|tg|tk|tl|tn|to|tr|ts|tt|tw|tyv|uk|uz|ve|vi|vo|vot|wa|wen|wo|xh|yap|yo|zu|ak|an|ber-dz|crh|csb|ee|fat|fil|hsb|ht|hz|jv|kab|kj|kr|ku-tr|kwm|lg|li|mn-mn|ms|na|ng|nv|pap-an|pap-aw|qu|quz|rn|rw|sc|sg|sn|su|ty|za(s)
        fontversion: 131072(i)(s)
        capability: "otlayout:DFLT otlayout:cyrl otlayout:grek otlayout:latn"(s)
        fontformat: "TrueType"(s)
        decorative: False(s)
        postscriptname: "NotoSansMono-Regular"(s)
        color: False(s)
        symbol: False(s)
        variable: False(s)

[marekjez86]

@ariasuni : does the font with the above properties work for you or doesn't as Mono spaced font? also does the previous version that works have spacing property?

[ariasuni]

Today it seems to work. I guess replacing all my fonts needs a reboot a not simply a log out.

EDIT: Atom doesn’t seem to be able to pick Noto Sans Mono when using «default family» as a setting, although fc-match -s monospace returns NotoSansMono-Regular.ttf in first position.

Also, I still can’t select Noto Sans Mono normally in Konsole, I should check «Show all fonts» to also show sans and serif fonts, to be able to select Noto Sans Mono.

[ariasuni]

Also, the properties of Noto Mono, which I can select normally in Konsole and other apps:

❯ fc-scan /usr/share/fonts/noto/NotoMono-Regular.ttf 
Pattern has 24 elts (size 32)
        family: "Noto Mono"(s)
        familylang: "en"(s)
        style: "Regular"(s)
        stylelang: "en"(s)
        fullname: "Noto Mono"(s)
        fullnamelang: "en"(s)
        slant: 0(i)(s)
        weight: 80(f)(s)
        width: 100(f)(s)
        spacing: 100(i)(s)
        foundry: "GOOG"(s)
        file: "/usr/share/fonts/noto/NotoMono-Regular.ttf"(s)
        index: 0(i)(s)
        outline: True(s)
        scalable: True(s)
        charset: 
        0000: 00000000 ffffffff ffffffff 7fffffff 00000000 ffffffff ffffffff ffffffff
        0001: ffffffff ffffffff ffffffff ffffffff 00040000 00018003 00000000 fc010000
        0002: 0f000000 00000000 00000000 00000000 00000000 10000000 3f0002c0 00080000
        0003: 0000820b 00000008 00000000 00000000 ffffd7f0 fffffffb 00467fff 00000000
        0004: ffffffff ffffffff ffffffff ffffffff ffffff7f ffffffff ffffffff ffffffff
        0005: 000fffff 00000000 00000000 00000000 00000000 00000000 00000000 00000000
        001e: 00000003 c0000000 00000000 00000000 0000003f ffffffff ffffffff 03ffffff
        001f: 00000000 00000000 00002000 00000000 00000000 00000000 00000000 00000000
        0020: 7fb80fff 160d0047 00000010 80000000 00000000 00001898 00000000 00000000
        0021: 00480020 00004044 78000000 00000000 00000000 00000000 00000000 00000000
        0022: 44068044 00000800 00000100 00000031 00000000 00000000 00000000 00000000
        0025: 00000000 00000000 00000000 00000000 00000000 00000000 00000400 00000000
        00fb: 0000001e 00000000 00000000 00000000 00000000 00000000 00000000 00000000
        00fe: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 80000000
        00ff: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 30000000
(s)
        lang: aa|ab|af|av|ay|ba|be|bg|bi|bin|br|bs|bua|ca|ce|ch|chm|co|cs|cu|cv|cy|da|de|el|en|eo|es|et|eu|fi|fj|fo|fr|fur|fy|gd|gl|gn|gv|ho|hr|hu|ia|ig|id|ie|ik|io|is|it|kaa|ki|kk|kl|kum|kv|ky|la|lb|lez|lt|lv|mg|mh|mk|mo|mt|nb|nds|nl|nn|no|nr|nso|ny|oc|om|os|pl|pt|rm|ro|ru|sah|se|sel|sh|sk|sl|sma|smj|smn|so|sq|sr|ss|st|sv|sw|tg|tk|tl|tn|tr|ts|tt|tyv|uk|uz|vo|vot|wa|wen|wo|xh|yap|zu|an|crh|csb|fil|hsb|ht|jv|kj|ku-tr|kwm|lg|li|mn-mn|ms|na|ng|pap-an|pap-aw|rn|rw|sc|sg|sn|su|ty|za(s)
        fontversion: 65536(i)(s)
        fontformat: "TrueType"(s)
        decorative: False(s)
        postscriptname: "NotoMono"(s)
        color: False(s)
        symbol: False(s)
        variable: False(s)

[antonio-rojas]

@ariasuni do you have 66-noto-mono.conf enabled in /etc/fonts/conf.d? This sets Noto Sans Mono explicitely as default monospace font, so the fc-match results in that case are not significant. Without explicitely setting it as monospace in /etc/fonts/conf.d, Noto Sans Mono doesn't appear in the output of fc-match -s monospace

[ariasuni]

I can confirm that I have 66-noto-mono.conf in /etc/fonts/conf.d (I symlinked it myself — this is not done by default on Arch Linux). And as I said, even when NotoSansMono-Regular.ttf is the first result of fc-match -s monospace, Konsole doesn’t consider it a monospace font.

[LionNatsu]

Just for your information...

Qt considers a font monospace if it is fixedPitch,

bool fixedPitch = spacing_value >= FC_MONO;

Noto that, in QFontDialog with QFontDialog::MonospacedFonts, QFontDialogPrivate::updateFamilies() hides fonts if

if (bool(options & QFontDialog::MonospacedFonts) != fdb.isFixedPitch(family))
    continue;

See this simple test:

#include <iostream>
#include <QApplication>
#include <QFontDialog>
int main(int argc, char *argv[]) {
    QApplication app(argc, argv);
    auto font = QFontDialog::getFont(nullptr, QFont(), nullptr, nullptr, QFontDialog::MonospacedFonts);
    std::cout << font.family().toStdString() << std::endl;
}

KDE Konsole also uses this:

if (showAllFonts) {
    currentFont = QFontDialog::getFont(&result, currentFont, this,
                                       i18n("Select Any Font"));
} else {
    currentFont = QFontDialog::getFont(&result, currentFont, this,
                                       i18n("Select Fixed Width Font"),
                                       QFontDialog::MonospacedFonts);
}

[LionNatsu]

Version (fc-scan):

fontversion: 131072(i)(s)
fontformat: "TrueType"(s)
postscriptname: "NotoSansMono-Regular"(s)