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Bug#1037311: rxvt-unicode: Xft font fallback issues when using subpixel rendering and URxvt.letterSpace: -2
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anonymous
Jun 10, 2023, 10:00:05 PM6/10/23
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Package: rxvt-unicode
Version: 9.30-2+b4
Severity: important
X-Debbugs-Cc: epo...@gmail.com
Dear Maintainer,
On bookworm, I'm having font rendering issues under urxvt when using Xft subpixel rendering (Xft.rgba: rgb) and URxvt.letterSpace: -2 in ~/.Xresources.
pic of what I mean: https://files.catbox.moe/mnb790.png
expected bullseye behavor on the left, bookworm on the right
I use xft:Go Mono:pixelsize=13, It's falling back to some unknown serif font.
From what I understand, in bullseye, it would just draw the glyph even if it was being cut-off, now it either draws a box or uses an ugly fallback font.
I also notice that this adds significant latency to terminal output, random glyphs will also flicker as I type.
When I run urxvt from the terminal, stderr spits out various errors to the tune of
urxvt: unable to calculate font width for <font name> using max_advance_width
But the fonts it lists are stuff like DejaVu Sans Mono, Courier New, Andale Mono and FreeMono, none of which I'm using in my ~/.Xresources and I can't find where these are being defined in /etc either.
I found that setting Xft.rgba: none and URxvt.letterSpace: -1 fixes all these issues but it forces me to live without subpixel rendering.
I marked as important because this makes urxvt considerably difficult to uses and I'm holding off on upgrading to bookworm because of it.
I can provide more information if you need it, my email is epo...@gmail.com, thank you.
-- System Information:
Debian Release: 12.0
APT prefers stable-security
APT policy: (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 6.1.0-9-amd64 (SMP w/2 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages rxvt-unicode depends on:
ii base-passwd 3.6.1
ii libc6 2.36-9
ii libfontconfig1 2.14.1-4
ii libgcc-s1 12.2.0-14
ii libgdk-pixbuf-2.0-0 2.42.10+dfsg-1+b1
ii libglib2.0-0 2.74.6-2
ii libperl5.36 5.36.0-7
ii libptytty0 2.0-1+b1
ii libstartup-notification0 0.12-6+b1
ii libx11-6 2:1.8.4-2
ii libxft2 2.3.6-1
ii libxmu6 2:1.1.3-3
ii libxrender1 1:0.9.10-1.1
ii ncurses-base 6.4-4
ii ncurses-term 6.4-4
Versions of packages rxvt-unicode recommends:
ii fonts-dejavu 2.37-6
ii fonts-vlgothic [fonts-japanese-gothic] 20220612-1
Versions of packages rxvt-unicode suggests:
ii sensible-utils 0.0.17+nmu1
-- no debconf information
Version: 9.30-2+b4
Severity: important
X-Debbugs-Cc: epo...@gmail.com
Dear Maintainer,
On bookworm, I'm having font rendering issues under urxvt when using Xft subpixel rendering (Xft.rgba: rgb) and URxvt.letterSpace: -2 in ~/.Xresources.
pic of what I mean: https://files.catbox.moe/mnb790.png
expected bullseye behavor on the left, bookworm on the right
I use xft:Go Mono:pixelsize=13, It's falling back to some unknown serif font.
From what I understand, in bullseye, it would just draw the glyph even if it was being cut-off, now it either draws a box or uses an ugly fallback font.
I also notice that this adds significant latency to terminal output, random glyphs will also flicker as I type.
When I run urxvt from the terminal, stderr spits out various errors to the tune of
urxvt: unable to calculate font width for <font name> using max_advance_width
But the fonts it lists are stuff like DejaVu Sans Mono, Courier New, Andale Mono and FreeMono, none of which I'm using in my ~/.Xresources and I can't find where these are being defined in /etc either.
I found that setting Xft.rgba: none and URxvt.letterSpace: -1 fixes all these issues but it forces me to live without subpixel rendering.
I marked as important because this makes urxvt considerably difficult to uses and I'm holding off on upgrading to bookworm because of it.
I can provide more information if you need it, my email is epo...@gmail.com, thank you.
-- System Information:
Debian Release: 12.0
APT prefers stable-security
APT policy: (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 6.1.0-9-amd64 (SMP w/2 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages rxvt-unicode depends on:
ii base-passwd 3.6.1
ii libc6 2.36-9
ii libfontconfig1 2.14.1-4
ii libgcc-s1 12.2.0-14
ii libgdk-pixbuf-2.0-0 2.42.10+dfsg-1+b1
ii libglib2.0-0 2.74.6-2
ii libperl5.36 5.36.0-7
ii libptytty0 2.0-1+b1
ii libstartup-notification0 0.12-6+b1
ii libx11-6 2:1.8.4-2
ii libxft2 2.3.6-1
ii libxmu6 2:1.1.3-3
ii libxrender1 1:0.9.10-1.1
ii ncurses-base 6.4-4
ii ncurses-term 6.4-4
Versions of packages rxvt-unicode recommends:
ii fonts-dejavu 2.37-6
ii fonts-vlgothic [fonts-japanese-gothic] 20220612-1
Versions of packages rxvt-unicode suggests:
ii sensible-utils 0.0.17+nmu1
-- no debconf information
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