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Suppressed application title overwritten after screen lock #20259

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opened 2026-01-31 07:08:22 +00:00 by claunia · 1 comment
claunia commented 2026-01-31 07:08:22 +00:00
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Originally created by @geluk on GitHub (Jul 20, 2023).

Originally assigned to: @zadjii-msft on GitHub.

Windows Terminal version

1.17.11461.0

Windows build number

10.0.22000.0

Other Software

No response

Steps to reproduce

  1. Open a new terminal, and override the application title:
wt --suppressApplicationTitle --title example powershell
  1. Observe that the terminal has a tab named example
  2. Lock your screen (Windows + L)
  3. Sign back in
  4. Observe that the tab name has changed from example to Windows PowerShell

Expected Behavior

After unlocking, I would expect the tab name to be unchanged.

Actual Behavior

After unlocking, the tab name is changed from example to Windows PowerShell.

Note: This only happens when using the commandline to set the tab title. If you manually override it by double-clicking the tab and entering something there, the tab will keep its name after locking and unlocking.

Originally created by @geluk on GitHub (Jul 20, 2023). Originally assigned to: @zadjii-msft on GitHub. ### Windows Terminal version 1.17.11461.0 ### Windows build number 10.0.22000.0 ### Other Software _No response_ ### Steps to reproduce 1. Open a new terminal, and override the application title: ``` wt --suppressApplicationTitle --title example powershell ``` 2. Observe that the terminal has a tab named `example` 2. Lock your screen (`Windows` + `L`) 3. Sign back in 4. Observe that the tab name has changed from `example` to `Windows PowerShell` ### Expected Behavior After unlocking, I would expect the tab name to be unchanged. ### Actual Behavior After unlocking, the tab name is changed from `example` to `Windows PowerShell`. Note: This only happens when using the commandline to set the tab title. If you manually override it by double-clicking the tab and entering something there, the tab will keep its name after locking and unlocking.
claunia added the Area-SettingsIssue-BugIn-PRNeeds-Tag-FixProduct-Terminal labels 2026-01-31 07:08:22 +00:00
claunia commented 2026-01-31 07:08:23 +00:00
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@zadjii-msft commented on GitHub (Aug 8, 2023):

Another obvious way of triggering this is setting a fontFace to garbage or some other non-existent font, then opening a admin application. The UAC will trigger a "desktop change"1 . That'll do the same thing as a lock screen.

Debugger shows that we get another "ImmersiveColorSet" message, with wparam=0. Great. We're using that as a signal that the OS theme changed. When we get that, we reload the whole settings.2

A stackoverflow post pointed me at maybe UISettings.ColorValuesChanged

related, but not actually: #11522

  1. okay that's not exactly what's happening, on mobile so can't look up the right term. ↩︎

  2. reloading the settings overwrites the title from the NewTabArgs. That's not great, but I think that's technically tracked in ↩︎

@zadjii-msft commented on GitHub (Aug 8, 2023): Another obvious way of triggering this is setting a fontFace to `garbage` or some other non-existent font, then opening a admin application. The UAC will trigger a "desktop change"[^1]. That'll do the same thing as a lock screen. Debugger shows that we get another "ImmersiveColorSet" message, with `wparam=0`. Great. We're using that as a signal that the OS theme changed. When we get that, we reload the whole settings.[^2] A stackoverflow post pointed me at maybe [`UISettings.ColorValuesChanged`](https://learn.microsoft.com/en-us/uwp/api/windows.ui.viewmanagement.uisettings.colorvalueschanged?view=winrt-22621) related, but not actually: #11522 [^1]: okay that's not exactly what's happening, on mobile so can't look up the right term. [^2]: reloading the settings overwrites the title from the NewTabArgs. That's not great, but I think that's _technically_ tracked in
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Reference: starred/terminal#20259
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