1764429 - Font spacing broken

Status: RESOLVED DUPLICATE of bug 1759667

(Core :: Layout: Text and Fonts, defect)

Description

[alexander.schmiechen]

Attachment: Screenshot_20220410_115059.png

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:99.0) Gecko/20100101 Firefox/99.0

Steps to reproduce:

Hardware upgrade (new motherboard/CPU/memory) and Firefox update (to 99.0)

System:
Host: zf11 Kernel: 5.16.14-1-MANJARO arch: x86_64 bits: 64
Desktop: KDE Plasma v: 5.24.3 Distro: Manjaro Linux
Machine:
Type: Desktop System: ASUS product: N/A v: N/A serial: <superuser required>
Mobo: ASUSTeK model: PRIME B550M-A v: Rev X.0x
serial: <superuser required> UEFI: American Megatrends v: 2604
date: 02/25/2022
CPU:
Info: 6-core AMD Ryzen 5 PRO 5650GE with Radeon Graphics [MT MCP]
speed (MHz): avg: 2210 min/max: 1400/4479
Graphics:
Device-1: AMD Cezanne driver: amdgpu v: kernel
Display: x11 server: X.Org v: 1.21.1.3 driver: X: loaded: amdgpu
unloaded: modesetting gpu: amdgpu resolution: 3840x2160~60Hz
OpenGL: renderer: AMD RENOIR (DRM 3.44.0 5.16.14-1-MANJARO LLVM 13.0.1)
v: 4.6 Mesa 21.3.7

Actual results:

Font spacing for numbers and spaces is kind of broken, see attached image, right part.

Expected results:

See attached image, left part.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Layout: Text and Fonts' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Jonathan Kew [:jfkthame]]

This is caused by an issue with the system's local fontconfig setup, typically caused by a poorly-designed emoji font package or by the user adding a fragment such as

        <match target="pattern"> 
                <edit name="family" mode="prepend"> 
                <string>Noto Color Emoji</string> 
                </edit> 
        </match> 

to a local fontconfig file. See bug 1759667 comment 12 and the surrounding discussion for more details.