bug#29078: 25.2; font issue with FreeType 2.8; should not use the rounded ascender and descender

[Lars Ingebrigtsen]

Vincent Lefevre <vincent@vinc17.net> writes:

> On 2019-11-18 19:32:41 +0100, Lars Ingebrigtsen wrote:
>> Using
>> 
>>     ftcrhb:-PfEd-DejaVu Sans
>> Mono-normal-normal-normal-*-25-*-*-*-m-0-iso10646-1 (#x957)
>
> Under Debian/unstable, I don't get it either. Neither with
>
>   ftcrhb:-PfEd-DejaVu Sans Mono-normal-normal-normal-*-15-*-*-*-m-0-iso10646-1
>
> But the bug occurs with
>
>   ftcrhb:-PfEd-DejaVu Sans Mono-normal-normal-normal-*-18-*-*-*-m-0-iso10646-1
>
> That's for the rendering. I don't know whether the cell height is
> honored in all these cases.

Ah, yes.  If I say

emacs -Q -fn "DejaVu Sans Mono:size=30"

and vary the size, I get the gaps in the lines for some sizes (like 23)
but not others (like 25).

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no