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Terminal blinks once when getting focus with AtlasEngine on #19779

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opened 2026-01-31 06:53:24 +00:00 by claunia · 2 comments
claunia commented 2026-01-31 06:53:24 +00:00
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Originally created by @Avi0 on GitHub (Apr 27, 2023).

Windows Terminal version

1.16.10262.0

Windows build number

10.0.22621.1555

Other Software

No response

Steps to reproduce

  1. Enable AtlasEngine.
  2. Open a terminal tab.
  3. Do something away from this tab for a while (in other tabs or not in Terminal).
  4. Focus the tab opened in step 2.

It's not clear exactly what needs to be done in step 3. Maybe actively do something with a system, maybe just wait. In practice, when I'm focusing a tab after it's been idle for an hour or two, it blinks when getting focus.

Expected Behavior

Terminal does not blink.

Actual Behavior

Terminal blinks once (maybe it redraws everything)?

Originally created by @Avi0 on GitHub (Apr 27, 2023). ### Windows Terminal version 1.16.10262.0 ### Windows build number 10.0.22621.1555 ### Other Software _No response_ ### Steps to reproduce 1. Enable AtlasEngine. 2. Open a terminal tab. 3. Do something away from this tab for a while (in other tabs or not in Terminal). 4. Focus the tab opened in step 2. It's not clear exactly what needs to be done in step 3. Maybe actively do something with a system, maybe just wait. In practice, when I'm focusing a tab after it's been idle for an hour or two, it blinks when getting focus. ### Expected Behavior Terminal does not blink. ### Actual Behavior Terminal blinks once (maybe it redraws everything)?
claunia commented 2026-01-31 06:53:26 +00:00
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@lhecker commented on GitHub (Apr 27, 2023):

Can you try to run any elevated (admin) application in step 3? Like, let's say, open regedit from the start menu? I'm pretty sure it'll "blink" afterwards.

Generally speaking, however I'm pretty sure that I know what you're talking about, and that issue got fixed in #14959 and so I'll close this issue for now. 🙂
This line fixes it: 4d5962e7b5/src/renderer/atlas/AtlasEngine.r.cpp (L147)

@lhecker commented on GitHub (Apr 27, 2023): Can you try to run any elevated (admin) application in step 3? Like, let's say, open `regedit` from the start menu? I'm pretty sure it'll "blink" afterwards. Generally speaking, however I'm pretty sure that I know what you're talking about, and that issue got fixed in #14959 and so I'll close this issue for now. 🙂 This line fixes it: https://github.com/microsoft/terminal/blob/4d5962e7b5b3bedcc4f52c0950510b9d9841fcec/src/renderer/atlas/AtlasEngine.r.cpp#L147
claunia commented 2026-01-31 06:53:26 +00:00
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@Avi0 commented on GitHub (Apr 27, 2023):

@lhecker, yes, it does blink after opening any elevated application. Thanks for the explanation and for the fix.

@Avi0 commented on GitHub (Apr 27, 2023): @lhecker, yes, it does blink after opening any elevated application. Thanks for the explanation and for the fix.
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Reference: starred/terminal#19779
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