[~100 mod] Uppercase characters in bold fonts appear one pixel shorter when using 7pt and slight hinting

What version of the font do you have installed?

ttf-ubuntu-font-family 0.68+ufl-0ubuntu1, the official public package.

I don't see a link to the screenshot, did the attachment fail? I can resubmit it here.

Yes, please can you provide a screenshot showing this.

Here's the screenshot. Notice how, in the last column, the bold word is one pixel lower when using slight hinting.

Am I correct in thinking that "Slight Hinting" is actually an autohinter
setting, not a rasterization setting? If so, nothing further can be done
to the font to change this - the work has been done in the hint code, as
seen in Full, which is being ignored if the autohinter is at work.

Dave

Yes, slight is being done by the Autohinter. It /may/ be possible to do something to bring the auto-hinted outlines and manually hinted outlines closer together; but as you note the work has been put into the manually-hinted forms (Hinted=Full) already.

I'm thinking something along the lines of more effective blending between outline, autohinter implementation and manual hinted, rather than switching straight from one method to the other when the setting gets to "Full".

This will need investigation during the next six months or so, and is probably more likely to be on the Freetype or FontConfig side.