[Debian-lego-team] Bug#1033440: Bug#1033440: leocad: yet another application deeply broken by triple buffering patch

[Jérémy Lal]

Le jeu. 13 avr. 2023 à 08:01, Johannes Schauer Marin Rodrigues <
josch at debian.org> a écrit :

> Control: tag -1 + moreinfo
>
> Quoting Jérémy Lal (2023-03-24 21:11:51)
> > Leocad rendering is broken, with the mouse pointer leaving trail,
> > and everything being drawn several times before being erased from the
> display.
>
> I'm unable to reproduce that effect. Can you give more context?
>
> > I strongly suspect the triple buffering patch that was enabled at the
> last minute :(
>
> What is "the triple buffering patch"?
>

Something in the graphic stack that is implemented in gnome-shell, using an
upstream patch.
Debian maintainers chose to backport that patch, but chromium was not happy
about it,
and now leocad.
Using a "radeon" graphic card.


> Where was it enabled "last minute"? leocad hasn't seen an update in quite a
> while.
>
> > I've rebuilt leocad to latest version, just in case it was already
> fixed, no luck.
>
> What have you rebuilt? And what version?
>

leocad 23.03 debian package.

That's probably a bug for gnome-shell, though.
And I'm sorry for the somewhat aggressive tone of my bug report.

Jérémy
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