At 2021-11-19 16:28:23, "Eli Zaretskii" <eliz@gnu.org> wrote:
>> Date: Fri, 19 Nov 2021 15:31:16 +0800 (CST)
>> From: tumashu  <tumashu@163.com>
>> Cc: "Eli Zaretskii" <eliz@gnu.org>, "Lars Ingebrigtsen" <larsi@gnus.org>, 
>> 	"51821@debbugs.gnu.org" <51821@debbugs.gnu.org>
>> 
>> I do not know more about font technology, I just want to:
>> 
>> when I set a proper line-height-factor, and M-x, 
>> minibuffer's height can not change again after I paste Chinese.
>
>That is what's supposed to happen.  If it doesn't happen, please
>describe the recipe exactly.

I have attache a gif motion picture, it showd that minibuffer's height change again after
I paste "ÄãºÃ"

Every time when I M-x and paste.

>
>And the value of line-height-factor is supposed to be tuned to the
>fonts you use, so if with 1.5 you see a change in the height, try
>making the value larger until it doesn't change.

When I set it to 2.0,  the problem exist too.

>
>