Subject: Re: bug#55870: GNU Emacs 26.3, Select All(C-x h) does not work

From: Eli Zaretskii <[email-masked]>
Date: Sun, 17 Jul 2022 09:37:52 +0300

> Cc: [email-masked], [email-masked]
> From: Bruce <[email-masked]>
> Date: Sun, 17 Jul 2022 10:38:25 +0800
> 
> (default-value 'selection-coding-system)
> 
> reports: nil

Maybe this is the reason.  Po Lu, what data-type do we use on X to put
data into the clipboard when the user presses M-w?

> What functions do emacs call after I press Meta-w?

There are too many of them to mention here.  In general, Emacs saves
the text on the kill-ring and also puts it into the X clipboard.