Keyboard shortcut to show hover tooltip

Solution 1:

press Ctrl + K + I, that's what you want

Solution 2:

The corresponding cmd name in VS Keybindings is editor.action.showHover. On mac for me the key combo was:

⌘ Command + k

⌘ Command + i

You can also access it through your command palette by typing show hover. It will show you the current keybinding and you can execute it as well.

If you would like you can remap it like this:

{
    "key": "ctrl+e",
    "command": "editor.action.showHover",
    "when": "editorTextFocus"
}

With that, if your cursor is within an error/warning squiggly line, you can hit ctrl+e to show what you would normally see with hover.

To make the box disappear, I am having to hit escape. It would be cool if there was a editor.action.toggleHover or something like that, but in the meantime this works great!