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UP arrow does not work in R session #3796

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opened 2026-01-30 23:30:20 +00:00 by claunia · 7 comments
claunia commented 2026-01-30 23:30:20 +00:00
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Originally created by @gcaillaut on GitHub (Sep 9, 2019).

Originally assigned to: @zadjii-msft on GitHub.

Environment

Windows build number: Microsoft Windows NT 10.0.18362.0
Windows Terminal version (if applicable): 0.4.2382.0

Any other software?
Powershell 6.2.1 or Powershell 5.1
R 3.6.1

Steps to reproduce

Open a R session then type any expression and evaluate it. Then the up arrow should retrieve older commands in the history.

Expected behavior

The up arrow should retrieve older commands in the history.

Actual behavior

The up arrow does nothing, even if the R history is in an expected state as showed by the history() function.

This bug occurs only in "Windows based" terminal, such as powershell and cmd, executed by Windows Terminal. This bug does not exist if R is run inside the old terminal. This bug does not exist either if R is running inside a ssh session inside powershell.

Windows Terminal -> Powershell -> R -> Bug
Windows Terminal -> CMD-> R -> Bug
Windows Terminal -> WSL Ubuntu 18.04 -> R -> Bug
Old terminal -> Powershell -> R -> No bug
Old terminal -> CMD -> R -> No bug
Windows Terminal -> Powershell -> SSH into a linux host -> R -> No bug

Originally created by @gcaillaut on GitHub (Sep 9, 2019). Originally assigned to: @zadjii-msft on GitHub. <!-- 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 I ACKNOWLEDGE THE FOLLOWING BEFORE PROCEEDING: 1. If I delete this entire template and go my own path, the core team may close my issue without further explanation or engagement. 2. If I list multiple bugs/concerns in this one issue, the core team may close my issue without further explanation or engagement. 3. If I write an issue that has many duplicates, the core team may close my issue without further explanation or engagement (and without necessarily spending time to find the exact duplicate ID number). 4. If I leave the title incomplete when filing the issue, the core team may close my issue without further explanation or engagement. 5. If I file something completely blank in the body, the core team may close my issue without further explanation or engagement. All good? Then proceed! --> <!-- This bug tracker is monitored by Windows Terminal development team and other technical folks. **Important: When reporting BSODs or security issues, DO NOT attach memory dumps, logs, or traces to Github issues**. Instead, send dumps/traces to secure@microsoft.com, referencing this GitHub issue. If this is an application crash, please also provide a Feedback Hub submission link so we can find your diagnostic data on the backend. Use the category "Apps > Windows Terminal (Preview)" and choose "Share My Feedback" after submission to get the link. Please use this form and describe your issue, concisely but precisely, with as much detail as possible. --> # Environment ```none Windows build number: Microsoft Windows NT 10.0.18362.0 Windows Terminal version (if applicable): 0.4.2382.0 Any other software? Powershell 6.2.1 or Powershell 5.1 R 3.6.1 ``` # Steps to reproduce <!-- A description of how to trigger this bug. --> Open a [R](https://cran.r-project.org/index.html) session then type any expression and evaluate it. Then the up arrow should retrieve older commands in the history. # Expected behavior <!-- A description of what you're expecting, possibly containing screenshots or reference material. --> The up arrow should retrieve older commands in the history. # Actual behavior <!-- What's actually happening? --> The up arrow does nothing, even if the R history is in an expected state as showed by the `history()` function. This bug occurs only in "Windows based" terminal, such as powershell and cmd, executed by Windows Terminal. This bug does not exist if R is run inside the *old* terminal. This bug does not exist either if R is running inside a ssh session inside powershell. Windows Terminal -> Powershell -> R -> Bug Windows Terminal -> CMD-> R -> Bug Windows Terminal -> WSL Ubuntu 18.04 -> R -> Bug Old terminal -> Powershell -> R -> No bug Old terminal -> CMD -> R -> No bug Windows Terminal -> Powershell -> SSH into a linux host -> R -> No bug
claunia commented 2026-01-30 23:30:21 +00:00
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@zadjii-msft commented on GitHub (Sep 9, 2019):

This might sound crazy, but could you open a old console window, run WSL, then run cmd.exe, then try the repro?

Running cmd.exe inside WSL will activate conpty, which is used to power the Terminal, and should help me narrow this bug down a bit.

@zadjii-msft commented on GitHub (Sep 9, 2019): This might sound crazy, but could you open a old console window, run WSL, then run cmd.exe, then try the repro? Running cmd.exe inside WSL will activate conpty, which is used to power the Terminal, and should help me narrow this bug down a bit.
claunia commented 2026-01-30 23:30:21 +00:00
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@bitcrazed commented on GitHub (Sep 9, 2019):

Related to #2397?

@bitcrazed commented on GitHub (Sep 9, 2019): Related to #2397?
claunia commented 2026-01-30 23:30:22 +00:00
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@zadjii-msft commented on GitHub (Sep 9, 2019):

Might also be related to #2520

@zadjii-msft commented on GitHub (Sep 9, 2019): Might also be related to #2520
claunia commented 2026-01-30 23:30:22 +00:00
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@gcaillaut commented on GitHub (Sep 10, 2019):

This might sound crazy, but could you open a old console window, run WSL, then run cmd.exe, then try the repro?

Running cmd.exe inside WSL will activate conpty, which is used to power the Terminal, and should help me narrow this bug down a bit.

I followed the steps you mentioned, and the bug is indeed present.

@gcaillaut commented on GitHub (Sep 10, 2019): > > > This might sound crazy, but could you open a old console window, run WSL, then run cmd.exe, then try the repro? > > Running cmd.exe inside WSL will activate conpty, which is used to power the Terminal, and should help me narrow this bug down a bit. I followed the steps you mentioned, and the bug is indeed present.
claunia commented 2026-01-30 23:30:22 +00:00
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@gcaillaut commented on GitHub (Sep 14, 2019):

Might also be related to #2520

It is indeed related to #2520 because pressing left or right arrow does not move the cursor. I use mostly emacs shortcuts (ctrl+b and ctrt+f) to move the cursor, that's why I didn't notice that. Del key does not work either, but ctrl+d works.

I forgot to mention that I'm using a french keyboard.

#2751 describes the same issue.

@gcaillaut commented on GitHub (Sep 14, 2019): > > > Might also be related to #2520 It is indeed related to #2520 because pressing left or right arrow does not move the cursor. I use mostly emacs shortcuts (ctrl+b and ctrt+f) to move the cursor, that's why I didn't notice that. Del key does not work either, but ctrl+d works. I forgot to mention that I'm using a french keyboard. #2751 describes the same issue.
claunia commented 2026-01-30 23:30:23 +00:00
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@DHowett-MSFT commented on GitHub (Sep 14, 2019):

/dup #2520

@DHowett-MSFT commented on GitHub (Sep 14, 2019): /dup #2520
claunia commented 2026-01-30 23:30:23 +00:00
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@ghost commented on GitHub (Sep 14, 2019):

Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report!

@ghost commented on GitHub (Sep 14, 2019): Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report!
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Reference: starred/terminal#3796
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