Garbled characters appear when the terminal is using copilot

[Monyer]

Type: Bug

Garbled characters appear when the terminal is using copilot

VS Code version: Code 1.105.1 (Universal) (7d842fb, 2025-10-14T22:33:36.618Z)
OS version: Darwin arm64 24.6.0
Modes:

System Info

Item	Value
CPUs	Apple M3 Max (14 x 2400)
GPU Status	2d_canvas: enabled direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: enabled_on trees_in_viz: disabled_off video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	12, 10, 8
Memory (System)	36.00GB (0.07GB free)
Process Argv	--crash-reporter-id 761e3b95-be26-46fc-b94f-438ae95ccd14
Screen Reader	no
VM	0%

Extensions (112)

Extension	Author (truncated)	Version
codesnap	adp	1.3.4
js-unicode-preview	adp	1.1.4
vscode-nginx-conf	ahm	0.3.5
bootstrap5-vscode	Anb	0.4.4
vscode-json	and	1.5.2
claude-code	Ant	2.0.25
openresty-snippets	ben	0.0.1
markdown-mermaid	bie	1.29.0
vscode-intelephense-client	bme	1.14.4
uni-app-path	cc-	0.0.1
turbo-console-log	Cha	3.8.2
npm-intellisense	chr	1.4.5
path-intellisense	chr	2.10.0
dart-code	Dar	3.120.1
flutter	Dar	3.120.0
vscode-markdownlint	Dav	0.60.0
vscode-eslint	dba	3.0.16
hbuilderx-language-services	dcl	4.82.0
uniapp-snippet	dlh	0.0.2
docker	doc	0.18.0
githistory	don	0.6.20
vscode-html-css	ecm	2.0.13
EditorConfig	Edi	0.17.4
prettier-vscode	esb	11.0.0
change-case	Fin	0.0.7
auto-close-tag	for	0.5.15
auto-rename-tag	for	0.1.10
code-runner	for	0.12.2
html-preview-vscode	geo	0.2.5
copilot	Git	1.387.0
copilot-chat	Git	0.32.3
vscode-github-actions	git	0.28.0
go	gol	0.50.0
vscode-nginx-conf-hint	han	0.3.1
snippet-factory	hay	0.0.1
uniapp-ifdef-display	hol	0.0.1
unicode-conversion	jac	0.2.0
nginx-log-highlighter	jak	1.1.0
vscode-edit-csv	jan	0.11.7
jbockle-format-files	jbo	3.4.0
json2csv	kha	1.0.0
vscode-phpfmt	kok	1.2.54
l13-diff	L13	1.3.11
i18n-ally	lok	2.13.1
rainbow-csv	mec	3.23.0
git-graph	mhu	1.30.0
mongodb-vscode	mon	1.14.2
vscode-containers	ms-	2.2.0
vscode-docker	ms-	2.0.0
vscode-language-pack-zh-hans	MS-	1.105.2025101509
playwright	ms-	1.1.16
black-formatter	ms-	2025.2.0
debugpy	ms-	2025.15.2025102001
isort	ms-	2025.0.0
python	ms-	2025.16.0
vscode-pylance	ms-	2025.8.100
vscode-python-envs	ms-	1.11.12931018
jupyter	ms-	2025.9.1
jupyter-keymap	ms-	1.1.2
jupyter-renderers	ms-	1.3.0
vscode-jupyter-cell-tags	ms-	0.1.9
vscode-jupyter-slideshow	ms-	0.1.6
remote-containers	ms-	0.427.0
cmake-tools	ms-	1.21.36
cpptools	ms-	1.28.3
cpptools-extension-pack	ms-	1.3.1
powershell	ms-	2025.4.0
vscode-typescript-next	ms-	6.0.20251022
sqltools	mtx	0.28.5
sqltools-driver-mysql	mtx	0.6.6
sqltools-driver-pg	mtx	0.5.7
sqltools-driver-sqlite	mtx	0.5.3
php-docblocker	nei	2.7.0
oxc-vscode	oxc	1.24.0
vscode-css-peek	pra	4.4.3
java	red	1.46.0
vscode-xml	red	0.29.0
vscode-yaml	red	1.19.1
vue-vscode-snippets	sdr	3.2.0
vscode-nginx	sha	0.6.0
markdown-preview-enhanced	shd	0.8.19
vue-helper	she	5.0.14
lua	sum	3.15.0
sass-indented	syl	1.8.33
language-stylus	sys	1.16.0
even-better-toml	tam	0.21.2
sort-json	Thi	20.1.0
vscode-counter	uct	3.7.2
uni-app-snippets-vscode	uni	0.10.5
uni-cloud-snippets-vscode	uni	0.3.0
intellicode-api-usage-examples	Vis	0.2.9
vscodeintellicode	Vis	1.3.2
explorer	vit	1.32.0
migrate-java-to-azure	vsc	1.5.3
vscode-gradle	vsc	3.17.0
vscode-java-debug	vsc	0.58.2
vscode-java-dependency	vsc	0.26.1
vscode-java-pack	vsc	0.30.3
vscode-java-test	vsc	0.43.1
vscode-java-upgrade	vsc	1.7.0
vscode-maven	vsc	0.44.0
vscode-icons	vsc	12.15.0
volar	Vue	3.1.1
vscode-todo-highlight	way	1.0.5
tinypng	wei	0.0.7
vue	Wsc	1.0.26
JavaScriptSnippets	xab	1.8.0
php-debug	xde	1.37.0
element-plus-vue	xua	1.0.10
markdown-all-in-one	yzh	3.6.3
html-css-class-completion	Zig	1.20.0
vscode-proto3	zxh	0.5.5

(1 theme extensions excluded)

A/B Experiments

vsliv368cf:30146710
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythonrdcb7:31342333
aj953862:31281341
b6b4d950:31327385
nes-set-on:31351930
6abeh943:31336334
envsdeactivate2:31353495
gendocstringf:31405073
gaj49834:31404438
cloudbuttont:31379625
todos-1:31405332
qwen_all_req:31402696
treatment_gpt5applypatchexclusively:31398171
3efgi100_wstrepl:31403338
nes-auto-30:31406145
trigger-command-fix:31379601
auto_model_enabled:31385282
grok-control-prompt:31401224
use-responses-api:31390855
applesignin:31399435
9i271672:31399627
ddidt:31399633
je187915:31401257
control_gfa0i828:31405714
2a0ce269:31405347
agentic_ask_h7d75428:31406125

[torsknod2]

I had the same when it was modifying a file.

[casterkay]

Still seeing this on VS Code 1.130.0 (macOS 26.5.2, Apple Silicon arm64).

Intermittent garbled/corrupted characters in the integrated terminal — same symptoms as the original #174399 and this issue. Setting "terminal.integrated.gpuAcceleration": "off" resolves it completely.

This has persisted across many VS Code versions now (the original report was on 1.75.0, over three years ago).

[anthonykim1]

@casterkay Should be resolved in 1.131.0. Can you please try latest insiders.Insiders build
#322756

Thanks.