Double 'l' showing problem

[haifenghuang]

Issue Type: Bug

Two 'l' character is not show correctly. for example, when I type 'channelloop', the two 'l' look very weird. When I remove one 'l', It shows correctly.

VS Code version: Code 1.52.1 (ea3859d4ba2f3e577a159bc91e3074c5d85c0523, 2020-12-16T16:34:46.910Z) OS version: Windows_NT x64 10.0.17134

System Info

|Item|Value| |---|---| |CPUs|AMD Ryzen 5 PRO 2500U w/ Radeon Vega Mobile Gfx (8 x 1996)| |GPU Status|2d_canvas: enabled
flash_3d: enabled
flash_stage3d: enabled
flash_stage3d_baseline: enabled
gpu_compositing: enabled
multiple_raster_threads: enabled_on
oop_rasterization: disabled_off
opengl: enabled_on
protected_video_decode: unavailable_off
rasterization: enabled
skia_renderer: disabled_off_ok
video_decode: enabled
vulkan: disabled_off
webgl: enabled
webgl2: enabled| |Load (avg)|undefined| |Memory (System)|6.93GB (0.55GB free)| |Process Argv|C:\\work\\mycontroller --crash-reporter-id 70ddb8f7-0c8f-4b67-a327-7ae146987cba| |Screen Reader|no| |VM|40%|

Extensions (73)

Extension|Author (truncated)|Version ---|---|--- vscode-vlang|0x9|0.1.2 vscode-openapi|42C|3.10.0 gitdiffer|aag|0.0.3 numbered-bookmarks|ale|7.3.0 primer-light|and|0.0.6 swagger-viewer|Arj|3.0.1 code-gnu-global|aus|0.2.2 vscode-database|baj|2.2.3 vscode-django|bat|1.2.0 vscode-perl|cfg|1.18.0 vscode-astyle|chi|0.9.0 bracket-select|chu|2.0.2 highlight-line-vscode|cli|0.0.1 bracket-pair-colorizer|Coe|1.0.61 doxdocgen|csc|1.1.0 vscode-office|cwe|1.9.1 make-hidden|dev|3.0.3 python-preview|don|0.0.4 python-extension-pack|don|1.6.0 gitlens|eam|11.1.3 tslint|eg2|1.0.44 vscode-statusbar-debugger|fab|2.0.6 go|gol|0.22.0 gc-excelviewer|Gra|3.0.40 perl-outline|hit|0.0.6 rest-client|hum|0.24.4 mysql-syntax|jak|1.3.1 swift|Kas|0.2.0 kite|kit|0.136.0 nim|kos|0.6.6 vs-color-picker|lih|1.0.0 remotefs|lix|0.0.16 lzwme-eye-care|lzw|1.0.2 MagicPython|mag|1.1.0 copy-code-block|Mat|0.0.7 mp|mag|0.0.1 csharp|ms-|1.23.8 mssql|ms-|1.10.1 python|ms-|2021.1.502429796 vscode-pylance|ms-|2021.1.3 jupyter|ms-|2020.12.414227025 remote-containers|ms-|0.155.1 remote-ssh|ms-|0.63.0 remote-ssh-edit|ms-|0.63.0 remote-wsl|ms-|0.52.0 vscode-remote-extensionpack|ms-|0.20.0 cmake-tools|ms-|1.5.3 cpptools|ms-|1.2.0-insiders3 gradle-language|nac|0.2.3 peep|nwa|0.0.5 material-icon-theme|PKi|4.5.0 java|red|0.74.0 vscode-xml|red|0.14.0 vscode-yaml|red|0.14.0 vscode-gradle|ric|3.5.2 highlight-words|rsb|0.1.4 yo|sam|0.9.3 perltidy|sfo|1.3.2 html-preview-vscode|tht|0.2.5 pdf|tom|1.1.0 shell-launcher|Tyr|0.4.1 cscs-debugger|vas|0.7.2 vscodeintellicode|Vis|1.2.10 extension|vla|0.1.3 vscode-java-debug|vsc|0.30.0 vscode-java-dependency|vsc|0.17.0 vscode-java-pack|vsc|0.12.1 vscode-java-test|vsc|0.27.0 vscode-maven|vsc|0.27.1 vscode-icons|vsc|11.1.0 debug|web|0.25.0 jinja|who|0.0.8 markdown-pdf|yza|1.4.4 (23 theme extensions excluded)

A/B Experiments

``` vsliv368cf:30146710 vsreu685:30147344 openlogontheside:30221877 python383cf:30185419 vspor879:30202332 vspor708:30202333 vspor363:30204092 vswsl492:30211401 wsl2prompt:30224612 pythonvsdeb440:30248342 unusedprompt:30224610 folderexplorercf:30224615 openfilemenucf:30224648 pythonvsded773:30248341 pythonvspyt875:30247033 ```

[IllusionMH]

/needsMoreInfo

What font are you using? And where you have this "probem" editor or terminal? Screenshot will be helpful Most likely it's forn that supports ligatures In this case "editor.fontLigatures": false should disable them for editor, for terminal you would need to set font without ligatures.

[haifenghuang]

my editor font is Source Code Pro Semibold。Below is the image Which shows the problem:

But when I change the font to Consolas, It shows as expected.

Maybe it's the font problem which I use.

[IllusionMH]

/duplicate of #106583

See https://github.com/microsoft/vscode/issues/106583#issuecomment-694121145 for more details and one of possible workarounds