hardware keyboard - modifier keys not delivered with cursor keys and page up / down

[bubnikv]

Problem description

When using the Midnight Commander, the Shift-Cursor Up/Down combination is used to select items and the Ctrl-Page Up/Down are used to navigate directories. In Termux App, modifiers are not delivered for these keys.

Steps to reproduce

Open mc, hold Shift and press the "arrow down" cursor key. Expected behavior: Files or directories are marked as selected and the cursor in mc moves down. Current behavior: Cursor does not move at all.

[Grimler91]

In my experience this is keyboard dependent, and android version/ROM dependent

[bubnikv]

I forgot to note, that if I use a remote desktop client and I connect to a Windows box with Midnight commander started in there, the shift-up/down keys are correctly registered. I have also written a simple Android app to write out keyboard events captured in activity.dispatchKeyEvent() and I am seeing the modifiers being set correctly for these keys.

[bubnikv]

Interestingly enough, when the same midnight commander is executed under tmux, the shift-up/down commands are processed correctly.