bug#20115: 11.88; Preview images get mis-aligned

[David Kastrup]

Dylan Thurston <address@hidden> writes:

> On certain documents, the preview images become misaligned with the
> text. The exact circumstances are a bit of a mystery to me. I've
> attached an example that's as minimal as I could make it. Some
> features that are necessary for bad behaviour on my system:
>
> * Removing the TiKz library makes the bug disappear (even though TiKz
>   is not used in this snippet).
>
> * Removing the duplicates of the text makes the bug disappear.
>
> * Removing the "proof" environments makes the bug disappear.
>
> * Removing some of the text that does not involve any math mode or
>   preview images makes the bug disappear.
>
> On my system, starting with the 13th copy of the text, the images are
> mis-aligned. I've attached a screenshot showing versions just before
> and just after the bug triggers.

You should have given more of a description than "mis-aligned".  One of
the most important features of preview-latex is that it aligns the
baselines of graphics with the baselines of text, and I was looking for
that at least 10 minutes.

The actual problem is that images and previews get out of synch.  In
this case, it would be interesting to see whether there is any
disruption in the _region_.pdf file that preview-latex generates as its
image container.  I suspect that there is some page inserted or deleted
that should not be in the file.

-- 
David Kastrup