To use ALT key in vim without tweaking, the escaping should be disabled in xterm. Without escaping the ALT will not work in bash for shortcuts.
to work around I need to reload this option before starting vim:
XTerm*metaSendsEscape: false | xrdb -load
Any idea how I can reload .Xresource and make changes take effect without restarting the terminal window ?
Open to other terminal to have ALT work both in vim and bash.