microsoft / microsoft/terminal
'MODE CON LINES=100' kills command prompt
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Nobody has claimed this yet.
Area-Server
Issue-Bug
Priority-2
Product-Conpty
- Dominant language
- C++
- Stars
- 105k
- Forks
- 9.6k
- Avg merge
- 3d 17h
- Merged PRs (30d)
- 29
Description
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).

Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the issue on Windows 10 with Command Prompt and MODE CON LINES=100, using the provided expected and actual behavior as the check. Trace the console handling for this command and determine why the prompt becomes invisible; done means the screen clears and the prompt is visible in the upper-left corner.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- cli, operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100