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It seems like DA1 is broken in 1.22 (the response doesn't include a valid CSI (\x1b)) #22174

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opened 2026-01-31 08:05:33 +00:00 by claunia · 1 comment
claunia commented 2026-01-31 08:05:33 +00:00
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Originally created by @zadjii-msft on GitHub (Aug 28, 2024).

It seems like DA1 is broken in this release. When I query Sixel support by sending \x1b[c, the response doesn't include a valid CSI (\x1b) in the beginning:

[?61;4;6;7;14;21;22;23;24;28;32;42c

and it should be:

\x1b[?61;4;6;7;14;21;22;23;24;28;32;42c

I'm using Microsoft.WindowsTerminalPreview_1.22.2362.0_arm64.zip

Originally posted by @sxyazi in https://github.com/microsoft/terminal/discussions/17809#discussioncomment-10469993

Originally created by @zadjii-msft on GitHub (Aug 28, 2024). It seems like [DA1](https://vt100.net/docs/vt510-rm/DA1.html) is broken in this release. When I query Sixel support by sending `\x1b[c`, the response doesn't include a valid CSI (`\x1b`) in the beginning: ``` [?61;4;6;7;14;21;22;23;24;28;32;42c ``` and it should be: ``` \x1b[?61;4;6;7;14;21;22;23;24;28;32;42c ``` I'm using [Microsoft.WindowsTerminalPreview_1.22.2362.0_arm64.zip](https://github.com/microsoft/terminal/releases/download/v1.22.2362.0/Microsoft.WindowsTerminalPreview_1.22.2362.0_arm64.zip) _Originally posted by @sxyazi in https://github.com/microsoft/terminal/discussions/17809#discussioncomment-10469993_
claunia added the Issue-BugIn-PRArea-InputNeeds-Tag-FixProduct-Conpty labels 2026-01-31 08:05:33 +00:00
claunia commented 2026-01-31 08:05:35 +00:00
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@DHowett commented on GitHub (Aug 28, 2024):

This is probably “the documentation said I can read VT replies without enabling VT INPUT mode, but the new ConPTY breaks that” as reported by @alabuzhev

We drop the ESC during processed input handling. See discussion in #17729.

@DHowett commented on GitHub (Aug 28, 2024): This is probably “the documentation said I can read VT replies *without* enabling VT INPUT mode, but the new ConPTY breaks that” as reported by @alabuzhev We drop the ESC during processed input handling. See discussion in #17729.
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Reference: starred/terminal#22174
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