I did not manage to find a way to reproduce myself. But I found that openscad has some debugging option that may provide additional information.
Can you try to run openscad with the --debug option: openscad --debug=scintillaeditor and then reproduce the problem with the ENTER key and note down the output from the openscad program? When I run it, I see output like this: scintillaeditor: KeyPress - modifiers: shift ctrl alt meta keypad group scintillaeditor: KeyPress - modifiers: SHIFT ctrl alt meta keypad group For every key press and key release, it logs the modifiers received with the event. It doesn't log which key was pressed, but you should be able to match key press to output line by looking when the output appears relative to the key-presses. It would be useful to know what is (if any) logged for - A "shift+enter" key press, which inserts a linebreak correctly - An "enter" keypress without shift that is ignored incorrectly - Try using both the normal and numeric-pad enter key - What is logged for another key that works normally (space, letters) This information will hopefully give a clue to why the "enter" key doesn't work on its own. Based on this I can try to build an openscad binary with more detailed debugging printouts to hopefully track down the root cause of the issue. In case this becomes necessary, do you prefer to build openscad yourself from a git branch/patch; or for me to supply a (signed) temporary .deb with the extra debugging? - Kristian.
