Output from IW is not scrolled to

[crsqq]

There is an issue with the IW (might be related to microsoft/vscode-jupyter#9259): the most recent output from commands entered through the interactive prompt is not shown if the windows is filled by previous output.

E.g. in this screencast: the output of i, i*2, i/0 is not shown, manual scrolling is thus necessary.

Peek.2022-03-09.14-51.mp4

Also happens with the changes from microsoft/vscode-jupyter#9299 applied and jupyter.alwaysScrollOnNewCell does not change the behavior

Steps to reproduce:

1. fill IW output with

# %%
for i in range(100):
    print(i)

2. type something in the interactive prompt

Environment data

• VS Code version: Version: 1.66.0-insider, Commit: 92f4bd7
• Jupyter Extension version (available under the Extensions sidebar): v2022.3.1000691006
• Python Extension version (available under the Extensions sidebar): v2022.3.10681004
• OS: Linux x64 5.4.0-102-generic
• Python and/or Anaconda version: 3.8.10
• Type of virtual environment used: venv
• Jupyter server running: Local

[rchiodo]

Thanks for the bug. It seems it is scrolling, just not past the last output. This is because output shows up async and we don't have a way to wait for it.

This might require changes to the VS code API to get a notebook execution render event.

[rchiodo]

I don't think this is a no longer. It never worked 100% correct as output is async from VS code so when we scroll the output may not be there yet.

[amunger]

likely related to microsoft/vscode-jupyter#7686