starred/terminal
1
0
Fork 0
mirror of https://github.com/microsoft/terminal.git synced 2026-02-03 21:25:34 +00:00
Code Issues 19.0k Packages Projects Releases 20 Wiki Activity

Windows Terminal as default Console Host + Resume Issues #21097

New Issue
Closed
opened 2026-01-31 07:33:05 +00:00 by claunia · 5 comments
claunia commented 2026-01-31 07:33:05 +00:00
Owner
Copy Link

Originally created by @ForbiddenEra on GitHub (Jan 13, 2024).

Originally assigned to: @zadjii-msft on GitHub.

Windows Terminal version

1.19.3172.0 (Windows Store Preview)

Windows build number

10.0.19045.3570

Other Software

C:\Users\forbiddenera>ssh -V
OpenSSH_for_Windows_8.1p1, LibreSSL 3.0.2

C:\Users\forbiddenera>wsl -v
WSL version: 2.0.9.0 (pretty sure I originally installed w/Add/Remove Features but it now shows up as installed on Windows Store)
Kernel version: 5.15.133.1-1
WSLg version: 1.0.59
MSRDC version: 1.2.4677
Direct3D version: 1.611.1-81528511
DXCore version: 10.0.25131.1002-220531-1700.rs-onecore-base2-hyp
Windows version: 10.0.19045.3570

Steps to reproduce

I've experienced more than a few issues that seem to be related to using Windows Terminal as the default console host and especially relate to the resumption features.

Here, I'll detail the two main issues I seem to experience the most often:

  1. Opening a command prompt often (but I think not always) opens a separate process and will resume a previous session, even if that session has already been resumed (and is even still open). This issue also happens in other cases, such as when any program opens/spawns a console window itself for whatever reason.
    1.1 - Have a Windows Terminal session running; for me to reproduce just now, I had one window open with multiple (SSH, WSL2) tabs. This session and it's tabs, in my case, was restored from a previous session when first opening Windows Terminal. You will need to have a previous session to resume from to reproduce.
    1.2 - Try to open a command prompt in some typical ways such as Start->Run->cmd.exe or Win+X->Command Prompt (Note: I am of course aware that Command Prompt (Admin) opens a separate Admin-owned process)
    1.3 - The command prompt opens as expected but also creates a separate Windows Terminal process (which on it's own wouldn't be terrible if not ideal) and also opens a second window containing all the tabs from the resumed session.

  2. This one may seem a little application specific but could affect many applications beyond the case where I ran into it. In my case, the application was the Furmark 2 beta but I can imagine this being a huge issue for anyone doing any sort of crypto mining as those are basically always console apps and are probably more likely to cause crashes/restarts than most apps AND are more likely to be left unattended.
    2.1 - Run Furmark 2 (or probably any app that launches a console) and then have your system crash (in my case, I'm using a spare lower wattage PSU while my main one is RMA'd and Furmark triggered OCP while running causing the system to shutdown) or forcefully shutdown/reboot.
    2.2 - System reboots, login and Windows Terminal restores it's session.
    2.3 - Furmark 2 now starts running again, potentially causing a crash and endless boot loop unless the user intervenes.

I have Windows Terminal set to launch on startup and resume it's session and this is a lovely feature as my work entails having like 10+ terminals open all the time and having to re-open, re-connect and re-arrange all the windows and tabs anytime I reboot (or am forced to reboot) is a huge pain and having this feature (plus browsers and other apps nowadays) has actually made me a lot less reboot-averse; thus disabling it isn't really ideal.

The second issue I have also reported to the Furmark team so they can potentially work around it but that doesn't account for all other console software that could potentially crash causing a reboot.

The first issue, I've had instances where I've literally ended up with like 4-5 Windows Terminal instances all resuming with their 10+ tabs each, in fact it's triggered security warnings when it does it and suddenly I've got like 10 SSH terminals open to one host as it's determined well outside what ML deems normal usage.

Expected Behavior

  1. A session shouldn't resume in when a second Windows Terminal process launches after it's been resumed already.
  2. A session shouldn't resume at least a tab/app which caused a crash/reboot of Windows Terminal or the system in general. I'm not sure how well this could be implemented but I don't think many would object to Windows Terminal prompting and asking/warning if Windows Terminal had not been closed properly (due to Windows Terminal crashing, Windows crashing, power outage, random reboot, whatever) or even not resuming the session after a crash and/or perhaps not launching on login/system startup after a system crash.

Actual Behavior

I hit Win+X->Command Prompt and got a new Window with the command prompt and then also a second window which was duplicated the session I already had open in Windows Terminal:
image

Originally created by @ForbiddenEra on GitHub (Jan 13, 2024). Originally assigned to: @zadjii-msft on GitHub. ### Windows Terminal version 1.19.3172.0 (Windows Store Preview) ### Windows build number 10.0.19045.3570 ### Other Software C:\Users\forbiddenera>ssh -V OpenSSH_for_Windows_8.1p1, LibreSSL 3.0.2 C:\Users\forbiddenera>wsl -v WSL version: 2.0.9.0 (pretty sure I originally installed w/Add/Remove Features but it now shows up as installed on Windows Store) Kernel version: 5.15.133.1-1 WSLg version: 1.0.59 MSRDC version: 1.2.4677 Direct3D version: 1.611.1-81528511 DXCore version: 10.0.25131.1002-220531-1700.rs-onecore-base2-hyp Windows version: 10.0.19045.3570 ### Steps to reproduce I've experienced more than a few issues that seem to be related to using Windows Terminal as the default console host and especially relate to the resumption features. Here, I'll detail the two main issues I seem to experience the most often: 1. Opening a command prompt often (but I think not always) opens a separate process and will resume a previous session, even if that session has already been resumed (and is even still open). This issue also happens in other cases, such as when any program opens/spawns a console window itself for whatever reason. 1.1 - Have a Windows Terminal session running; for me to reproduce just now, I had one window open with multiple (SSH, WSL2) tabs. This session and it's tabs, in my case, was restored from a previous session when first opening Windows Terminal. You will need to have a previous session to resume from to reproduce. 1.2 - Try to open a command prompt in some typical ways such as `Start`->`Run`->`cmd.exe` or `Win+X`->`Command Prompt` (Note: I am of course aware that `Command Prompt (Admin)` opens a separate Admin-owned process) 1.3 - The command prompt opens as expected but also creates a separate Windows Terminal process (which on it's own wouldn't be terrible if not ideal) and also opens a second window containing all the tabs from the resumed session. 2. This one may seem a little application specific but could affect many applications beyond the case where I ran into it. In my case, the application was the Furmark 2 beta but I can imagine this being a huge issue for anyone doing any sort of crypto mining as those are basically always console apps and are probably more likely to cause crashes/restarts than most apps AND are more likely to be left unattended. 2.1 - Run Furmark 2 (or probably any app that launches a console) and then have your system crash (in my case, I'm using a spare lower wattage PSU while my main one is RMA'd and Furmark triggered OCP while running causing the system to shutdown) or forcefully shutdown/reboot. 2.2 - System reboots, login and Windows Terminal restores it's session. 2.3 - Furmark 2 now starts running again, potentially causing a crash and endless boot loop unless the user intervenes. I have Windows Terminal set to launch on startup and resume it's session and this is a lovely feature as my work entails having like 10+ terminals open all the time and having to re-open, re-connect and re-arrange all the windows and tabs anytime I reboot (or am forced to reboot) is a huge pain and having this feature (plus browsers and other apps nowadays) has actually made me a lot less reboot-averse; thus disabling it isn't really ideal. The second issue I have also reported to the Furmark team so they can potentially work around it but that doesn't account for all other console software that could potentially crash causing a reboot. The first issue, I've had instances where I've literally ended up with like 4-5 Windows Terminal instances all resuming with their 10+ tabs each, in fact it's triggered security warnings when it does it and suddenly I've got like 10 SSH terminals open to one host as it's determined well outside what ML deems normal usage. ### Expected Behavior 1. A session shouldn't resume in when a second Windows Terminal process launches after it's been resumed already. 2. A session shouldn't resume at least a tab/app which caused a crash/reboot of Windows Terminal or the system in general. I'm not sure how well this could be implemented but I don't think many would object to Windows Terminal prompting and asking/warning if Windows Terminal had not been closed properly (due to Windows Terminal crashing, Windows crashing, power outage, random reboot, whatever) or even not resuming the session after a crash and/or perhaps not launching on login/system startup after a system crash. ### Actual Behavior I hit `Win+X`->`Command Prompt` and got a new Window with the command prompt and then also a second window which was duplicated the session I already had open in Windows Terminal: ![image](https://github.com/microsoft/terminal/assets/7980490/433afa00-a216-4e9b-baef-188e411aff16)
claunia added the Issue-BugResolution-Duplicate labels 2026-01-31 07:33:06 +00:00
claunia commented 2026-01-31 07:33:07 +00:00
Author
Owner
Copy Link

@ForbiddenEra commented on GitHub (Jan 15, 2024):

I've also had occurrences since my post where when an app launches a console program and it does the resume where I get two new extra windows with the same tabs. And I just had an instance where I closed the console program (after closing the extra windows when said program first opened) and closing it caused even more windows to appear!

@ForbiddenEra commented on GitHub (Jan 15, 2024): I've also had occurrences since my post where when an app launches a console program and it does the resume where I get two new extra windows with the same tabs. And I just had an instance where I closed the console program (after closing the extra windows when said program first opened) and closing it caused even more windows to appear!
claunia commented 2026-01-31 07:33:07 +00:00
Author
Owner
Copy Link

@zadjii-msft commented on GitHub (Jan 31, 2024):

I need to go dedupe the set of

issue Windows? DefTerm? Restore prev session Launch on startup? issues?
#16487 10 true true true ❌ launch on boot restores normally, then defterm also restores?
#16487 10 true true true ✅ seemingly works fine?
#16557 10 ? true true ❌ launch on boot restores normally, then {{a second launch, unsure if defterm}} also restores?
#16561 10 ? ? (probably) true ❌ launch on boot restores double of the session
@zadjii-msft commented on GitHub (Jan 31, 2024): I need to go dedupe the set of * #16487 * #16557 * #16561 issue | Windows? | DefTerm? | Restore prev session | Launch on startup? | issues? | -------| ---------| ---------| ---------------------| -------------------| -----------| #16487 | 10 | true | true | true | ❌ launch on boot restores normally, then defterm also restores? | #16487 | 10 | true | true | true | ✅ seemingly works fine? | #16557 | 10 | ? | true | true | ❌ launch on boot restores normally, then {{a second launch, unsure if defterm}} also restores? | #16561 | 10 | ? | ? (probably) | true | ❌ launch on boot restores double of the session |
claunia commented 2026-01-31 07:33:07 +00:00
Author
Owner
Copy Link

@ForbiddenEra commented on GitHub (Feb 4, 2024):

This is getting a tiny bit nuts...I just rebooted with two terminals Windows opened before reboot, one with a single tab, the other with like 4 tabs...

After I reboot, I get this:
image
image

That's 31 shell tabs/instances! Should only be 5!

Let me know if I can provide any useful details/logs/settings/whatever.

@ForbiddenEra commented on GitHub (Feb 4, 2024): This is getting a tiny bit nuts...I just rebooted with two terminals Windows opened before reboot, one with a single tab, the other with like 4 tabs... After I reboot, I get this: ![image](https://github.com/microsoft/terminal/assets/7980490/68effce9-c5b6-49b8-a22b-564a0f59bc5f) ![image](https://github.com/microsoft/terminal/assets/7980490/f65e52cc-0341-4b19-a3e9-b42e37b8f47f) That's 31 shell tabs/instances! Should only be 5! Let me know if I can provide any useful details/logs/settings/whatever.
claunia commented 2026-01-31 07:33:07 +00:00
Author
Owner
Copy Link

@zadjii-msft commented on GitHub (Feb 8, 2024):

Okay after caching these threads all in, I'm gonna go dupe this to /dup #16487. Seems like in all these cases, a session restore during a Windows resume seems to leave the terminal in a state where it doesn't realize it needs to restore. As to why, I'm not sure yet. I'm guessing that if you do the "Identify Window" command, from the command palette, in each window, at least two have the same ID.

To help flesh-out the variables at play here: do you have the Terminal configured as the default terminal emulator in the Windows settings?

@zadjii-msft commented on GitHub (Feb 8, 2024): Okay after caching these threads all in, I'm gonna go dupe this to /dup #16487. Seems like in all these cases, a session restore during a Windows resume seems to leave the terminal in a state where it doesn't realize it needs to restore. As to why, I'm not sure yet. I'm guessing that if you do the "Identify Window" command, from the command palette, in each window, at least two have the same ID. To help flesh-out the variables at play here: do you have the Terminal configured as the default terminal emulator in the Windows settings?
claunia commented 2026-01-31 07:33:08 +00:00
Author
Owner
Copy Link

@ForbiddenEra commented on GitHub (Feb 14, 2024):

Okay after caching these threads all in, I'm gonna go dupe this to /dup #16487. Seems like in all these cases, a session restore during a Windows resume seems to leave the terminal in a state where it doesn't realize it needs to restore. As to why, I'm not sure yet. I'm guessing that if you do the "Identify Window" command, from the command palette, in each window, at least two have the same ID.

To help flesh-out the variables at play here: do you have the Terminal configured as the default terminal emulator in the Windows settings?

@zadjii-msft :: Yes, I do, thought I mentioned that above. And it doesn't only happen when resuming Windows; it happens sometimes when something causes a terminal to open, such as a program opening a terminal app.

Beyond answering your question though, I guess I'll track the issue in the other thread :)

@ForbiddenEra commented on GitHub (Feb 14, 2024): > Okay after caching these threads all in, I'm gonna go dupe this to /dup #16487. Seems like in all these cases, a session restore during a Windows resume seems to leave the terminal in a state where it doesn't realize it needs to restore. As to why, I'm not sure yet. I'm guessing that if you do the "Identify Window" command, from the command palette, in each window, at least two have the same ID. > > To help flesh-out the variables at play here: do you have the Terminal configured as the default terminal emulator in the Windows settings? @zadjii-msft :: Yes, I do, thought I mentioned that above. And it doesn't only happen when resuming Windows; it happens sometimes when something causes a terminal to open, such as a program opening a terminal app. Beyond answering your question though, I guess I'll track the issue in the other thread :)
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
⛺ Reserved
A11yCO
A11yMAS
A11ySev1
A11ySev2
A11ySev3
A11yTTValidated
A11yUsable
A11yVoiceAccess
A11yWCAG
Area-Accessibility
Area-AtlasEngine
Area-AzureShell
Area-Build
Area-Build
Area-Chat
Area-CmdPal
Area-CodeHealth
Area-Commandline
Area-CookedRead
Area-DefApp
Area-Extensibility
Area-Fonts
Area-GroupPolicy
Area-i18n
Area-Input
Area-Interaction
Area-Interop
Area-Localization
Area-Output
Area-Performance
Area-Portable
Area-Quality
Area-Remoting
Area-Rendering
Area-Schema
Area-Server
Area-Settings
Area-SettingsUI
Area-ShellExtension
Area-ShellExtension
Area-ShellExtension
Area-Suggestions
Area-Suggestions
Area-TerminalConnection
Area-TerminalControl
Area-Theming
Area-UserInterface
Area-VT
Area-Windowing
Area-WPFControl
AutoMerge
Blocking-Ingestion
Culprit-Centennial
Culprit-WinUI
Disability-All
Disability-Blind
Disability-LowVision
Disability-Mobility
External-Blocked-WinUI3
Fixed
Gathering-Data
good first issue
HCL-E+D
HCL-WindowsTerminal
Help Wanted
Impact-Compatibility
Impact-Compliance
Impact-Correctness
Impact-Visual
In-PR
InclusionBacklog
InclusionBacklog-Windows TerminalWin32
InclusionCommitted-202206
Issue-Bug
Issue-Docs
Issue-Feature
Issue-Feature
Issue-Question
Issue-Samples
Issue-Scenario
Issue-Task
Needs-Attention
Needs-Author-Feedback
Needs-Bisect
Needs-Discussion
Needs-Repro
Needs-Tag-Fix
Needs-Tag-Fix
Needs-Triage
No-Recent-Activity
Priority-0
Priority-1
Priority-2
Priority-3
Product-Cmd.exe
Product-Colortool
Product-Colortool
Product-Colortool
Product-Conhost
Product-Conpty
Product-Meta
Product-Powershell
Product-Terminal
Product-WSL
pull-request
Mirrored from GitHub Pull Request
 Resolution-Answered
Resolution-By-Design
Resolution-Duplicate
Resolution-External
Resolution-Fix-Available
Resolution-Fix-Committed
Resolution-No-Repro
Resolution-Won't-Fix
Severity-Blocking
Severity-Crash
Severity-DataLoss
spam
this-will-be-a-breaking-change
Tracking-External
WindowsTerminal_Win32
Work-Item
zAskModeBug
zInbox-Bug
No Label Issue-Bug Resolution-Duplicate
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
claunia
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: starred/terminal#21097
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?