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DECSTR was incorrectly handled inside the Alternate Screen Buffer #19918

Open
Bug
#20032
Open
DECSTR was incorrectly handled inside the Alternate Screen Buffer#19918
Bug
#20032
Labels
Area-VTVirtual Terminal sequence supportHelp WantedWe encourage anyone to jump in on these.Issue-BugIt either shouldn't be doing this or needs an investigation.Priority-3A description (P3)Product-TerminalThe new Windows Terminal.
Milestone
Backlog
@Xerifer

Description

@Xerifer
Xerifer
opened on Feb 28, 2026

Windows Terminal version

1.24.10212.0

Windows build number

10.0.26220.7872

Other Software

PowerShell 7.5.4

Steps to reproduce

Type echo "TestTest`e[?1049h`e[!pTest`e[?1049l" in PowerShell

Expected Behavior

The cursor should remain in place and continue. That's how xterm and tmux handle it.

Actual Behavior

The cursor jumped back to the left-top corner.

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    Area-VTVirtual Terminal sequence supportHelp WantedWe encourage anyone to jump in on these.Issue-BugIt either shouldn't be doing this or needs an investigation.Priority-3A description (P3)Product-TerminalThe new Windows Terminal.

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    Bug

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