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Fix 5s lags when using OSC 52 clipboard copy - #20728
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Leonard Hecker (lhecker)
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September 26, 2026 23:49
Dustin L. Howett (DHowett)
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Sep 26, 2026
Leonard Hecker (lhecker)
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September 28, 2026 14:29
Leonard Hecker (lhecker)
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September 28, 2026 14:29
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Tested locally - works perfectly. |
Dustin L. Howett (DHowett)
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Sep 28, 2026
Dustin L. Howett (DHowett)
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Dustin L. Howett (DHowett)
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Hilarious repro: `printf "\e]0;A\a\e]52;c;Qg==\a"` This issue is exactly what happens when you Ctrl+X in a clean file in msedit and it freezes Windows Terminal. It's because it puts a "•" in the title and copies the text. It triggers a title and clipboard change in the same frame which causes the UI and VT thread to deadlock trying to get the console lock. (cherry picked from commit 0626dc1) Service-Card-Id: PVTI_lADOAF3p4s4BQX0-zg9O_QY Service-Version: 1.25
Dustin L. Howett (DHowett)
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Oct 1, 2026
Hilarious repro: `printf "\e]0;A\a\e]52;c;Qg==\a"` This issue is exactly what happens when you Ctrl+X in a clean file in msedit and it freezes Windows Terminal. It's because it puts a "•" in the title and copies the text. It triggers a title and clipboard change in the same frame which causes the UI and VT thread to deadlock trying to get the console lock. (cherry picked from commit 0626dc1) Service-Card-Id: PVTI_lADOAF3p4s4BBcTlzg9O_Qs Service-Version: 1.24
Dustin L. Howett (DHowett)
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Hilarious repro:
printf "\e]0;A\a\e]52;c;Qg==\a"This issue is exactly what happens when you Ctrl+X in a clean file in
msedit and it freezes Windows Terminal. It's because it puts a "•" in
the title and copies the text.
It triggers a title and clipboard change in the same frame which causes
the UI and VT thread to deadlock trying to get the console lock.