Terminal window cuts on resize

[egor-romanov]

Type: Bug

When you resize terminal window, it's displayed lines cut to 1,2 only. All other space where you would expect to see terminal output is blank

VS Code version: Code - Insiders 1.80.0-insider (Universal) (db6bcdf309cc1565c502a54b73c33a63bdabfbd8, 2023-06-09T05:22:41.121Z) OS version: Darwin arm64 22.2.0 Modes:

System Info

|Item|Value| |---|---| |CPUs|Apple M1 (8 x 24)| |GPU Status|2d_canvas: enabled
canvas_oop_rasterization: disabled_off
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
metal: disabled_off
multiple_raster_threads: enabled_on
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
video_decode: enabled
video_encode: enabled
vulkan: disabled_off
webgl: enabled
webgl2: enabled
webgpu: enabled| |Load (avg)|12, 8, 5| |Memory (System)|16.00GB (0.08GB free)| |Process Argv|| |Screen Reader|no| |VM|0%|

Extensions (82)

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[egor-romanov]

[meganrogge]

A gif would be helpful as I cannot reproduce the issue

[egor-romanov]

Sure thing

It reproduces with any command, you can just ls -la for example, it would be the same

[meganrogge]

does changing terminal.integrated.gpuAcceleration help?

[egor-romanov]

Nope, tried all options

[rzhb]

When the terminal is resized to a smaller size, it's fine. However, when it is resized back, the output gets cut off.

[egor-romanov]

@meganrogge i would appreciate if you would remove info-needed label or request additional information 🙂

[PEZ]

I also see this on my Mac M1 Max. This is printed in the console when resizing the terminal pane:

  ERR Cannot read properties of undefined (reading 'backend'): TypeError: Cannot read properties of undefined (reading 'backend')
    at t.Buffer.resize (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/node_modules.asar/xterm/lib/xterm.js:1:196257)
    at o.resize (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/node_modules.asar/xterm/lib/xterm.js:1:212453)
    at c.resize (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/node_modules.asar/xterm/lib/xterm.js:1:252180)
    at I.resize (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/node_modules.asar/xterm/lib/xterm.js:1:136577)
    at I.resize (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/node_modules.asar/xterm/lib/xterm.js:1:43329)
    at e.Terminal.resize (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/node_modules.asar/xterm/lib/xterm.js:1:274835)
    at Ji.Yc (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:2521:2476)
    at Ji.Xc (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:2521:1804)
    at vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:6:9279

I also got this just before, though I don't know what I did to trigger it:

InputHandler.ts:1156 Uncaught TypeError: Cannot read properties of undefined (reading 'fill')
    at E._resetBufferLine (InputHandler.ts:1156:10)
    at E.eraseInDisplay (InputHandler.ts:1194:16)
    at Array.<anonymous> (InputHandler.ts:231:68)
    at c.parse (EscapeSequenceParser.ts:680:38)
    at E.parse (InputHandler.ts:485:35)
    at n._action (CoreTerminal.ts:145:99)
    at n._innerWrite (WriteBuffer.ts:164:27)
    at WriteBuffer.ts:124:29

[PEZ]

Possibly related is that if I move the terminal to the editor area and then back, the text gets distorted:

https://github.com/microsoft/vscode/assets/30010/1791c14f-3545-4ab0-be79-f8acefb365c5

The same error is printed in the console.

[Tyriar]

@PEZ that console error is very useful, thanks!

[Tyriar]

This should be fixed in latest due to https://github.com/xtermjs/xterm.js/commit/ffadc0b31da181708353dbf985ecfc5d9e1daee9