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Address terminal rendering issues with webgl #322756
Description
terminal.integrated.gpuAcceleration
Been seeing multiple instances of rendering glitch/break apart especially when using TUI CLI such as Copilot CLI in terminal editor, etc.
Wanting to have stress test, better coverage for terminal gpu acceleration, maybe this should also add test in xterm.js directly as well.
Activity
[-]Better test for terminal[/-][+]Improve testing for terminal gpu acceleration[/+]anthonykim1 commentedon Jul 4, 2026
Opened xtermjs/xterm.js#6038 for the xterm-side WebGL atlas investigation.
Current finding: at least two xterm.js WebGL atlas failure modes:
planning to split the current draft xterm.js PR into smaller test-first fixes rather than treating the large draft PR as the final review shape.
[-]Improve testing for terminal gpu acceleration[/-][+]Address terminal rendering issues with webgl, improve testing gpu acceleration [/+][-]Address terminal rendering issues with webgl, improve testing gpu acceleration [/-][+]Address terminal rendering issues with webgl[/+]fix(deps): bump @XTerm to beta.289/288 — shared-atlas tile-focus leak…
anthonykim1 commentedon Jul 27, 2026
Good way to test this would be to have multiple CLI windows open at the same time in the integrated terminal, then have it fun intensive streaming of text/images/emojis for minutes~. Then make sure rendering do not break.
Set
terminal.integrated.gpuAccelerationtoon