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

'MODE CON LINES=100' kills command prompt #5698

New Issue
Open
opened 2026-01-31 00:19:25 +00:00 by claunia · 2 comments
claunia commented 2026-01-31 00:19:25 +00:00
Owner
Copy Link

Originally created by @Luuk34 on GitHub (Dec 26, 2019).

Environment

Windows build number: Microsoft Windows [Version 10.0.18363.535]
Windows Terminal version (if applicable): 0.7.3451.0

Steps to reproduce

Open command prompt ('CMD'), and type 'MODE CON LINES=100'

Expected behavior

The screen is cleared, and prompt is shown at upper left corner.

Actual behavior

No prompt is show (at least characters of prompt are invisible).
command_prompt

Originally created by @Luuk34 on GitHub (Dec 26, 2019). # Environment ```none Windows build number: Microsoft Windows [Version 10.0.18363.535] Windows Terminal version (if applicable): 0.7.3451.0 ``` # Steps to reproduce Open command prompt ('CMD'), and type 'MODE CON LINES=100' # Expected behavior The screen is cleared, and prompt is shown at upper left corner. # Actual behavior No prompt is show (at least characters of prompt are invisible). ![command_prompt](https://user-images.githubusercontent.com/7850737/71471452-cd0b3a00-27cf-11ea-92c5-431c4d18fef6.gif)
claunia added the Issue-BugArea-ServerProduct-ConptyPriority-2 labels 2026-01-31 00:19:25 +00:00
claunia commented 2026-01-31 00:19:25 +00:00
Author
Owner
Copy Link

@DHowett-MSFT commented on GitHub (Dec 31, 2019):

This may have been fixed (incidentally) at the same time as #3907; somebody will need to validate.

@DHowett-MSFT commented on GitHub (Dec 31, 2019): This may have been fixed (incidentally) at the same time as #3907; somebody will need to validate.
claunia commented 2026-01-31 00:19:26 +00:00
Author
Owner
Copy Link

@zadjii-msft commented on GitHub (Jan 2, 2020):

@DHowett-MSFT unfortunately, that's not the case :/

I think this might have to do with the screen attributes somehow. This doesn't repro with my usual prompt, but if I set PROMPT=$p$g, then this always repros. Even set PROMPT=$e[31m$p$g$e[39m will cause this to go away, so there's something wonky with the attributes happening here.

EDIT: oh no it's worse than that.

It will sometimes repro with my usual prompt. And sometimes it doesn't.

OH NO

I bet it actually does resize the conpty buffer. If you do this in inception (wsl.exe cmd.exe), the console will get bigger. But the Terminal doesn't act on that resize for whatever reason. Either the terminal isn't acting on the ^[[8<rows>;<cols>t sequence, or the resize is never being emitted by conpty. Probably running into that same if clause where we check the maximum possible size of the window, but we don't do that in conpty mode.

@zadjii-msft commented on GitHub (Jan 2, 2020): @DHowett-MSFT unfortunately, that's not the case :/ I think this might have to do with the screen attributes somehow. This doesn't repro with my usual prompt, but if I `set PROMPT=$p$g`, then this always repros. Even `set PROMPT=$e[31m$p$g$e[39m` will cause this to go away, so there's something wonky with the attributes happening here. <hr> EDIT: oh no it's worse than that. It will _sometimes_ repro with my usual prompt. And sometimes it doesn't. OH NO I bet it actually does resize the conpty buffer. If you do this in inception (wsl.exe cmd.exe), the console will get bigger. But the Terminal doesn't act on that resize for whatever reason. Either the terminal isn't acting on the `^[[8<rows>;<cols>t` sequence, or the resize is never being emitted by conpty. Probably running into that same `if` clause where we check the maximum possible size of the window, but we don't do that in conpty mode.
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 Area-Server Issue-Bug Priority-2 Product-Conpty
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#5698
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?