How do I prevent Terminal.app from capturing Cmd/Ctrl/L? Following the instructions at http://www.techrepublic.com/blog/apple-in-the-enterprise/handy-screen-locking-tips-for-mac/ I've set up a keyboard shortcut to lock my screen by hitting  Cmd ⌘   Ctrl ⌃   L  . It works when the active window is Finder, or Notes, or Thunderbird, or ... well, most stuff.

There are a few applications where it doesn't though, Terminal being the most annoying. Terminal seems to capture it and treat it as ... well, I'm not sure what. It's not treating it the same as  Ctrl ⌃   L , or the same as  Cmd ⌘   L .

It also happens in Chrome, although only on some pages - this 'ere page being one of them.

It worked just fine before I upgraded to El Capitan.

Any suggestions for how to fix this?
The trick, really, is to avoid common key-commands - which is why the article you refer to uses  Ctrl ⌃   Opt ⌥   L , as no OS X command would normally use only  Ctrl ⌃  &amp;  Opt ⌥  - they would always add  Cmd ⌘  too, leaving you free to use  Ctrl ⌃   Opt ⌥  for anything you like.

If you insist on using  Cmd ⌘   Ctrl ⌃   L  then you would have to add, for each application that already uses it, a new custom command so it will no longer trigger in preference to your own.

For example, for Terminal, where  Cmd ⌘   Ctrl ⌃   L  is Clear Screen



you would need to replace that in System Prefs > Keyboard > Shortcuts > App Shortcuts



and add a different, non-conflicting shortcut.