Bug#432256: libxinerama1: XineramaIsActive disagrees with XineramaQueryScreens on sparc

[Brice Goglin <Brice.Goglin@ens-lyon.org>]

Emanuele Rocca wrote:
> I'm not much into X internals, but after a quick grep for Xinerama on
> -video-ati and -video-sunffb it seems to me that the latter doesn't
> provide useful replies to Xinerama related requests like
> X_XineramaIsActive, while the former does.
>   

Indeed.

> Somehow libxinerama assumes that XineramaIsActive even if sunffb doesn't
> handle such request?
>   


libxinerama didn't change much recently. While xserver-xorg-core changed
a lot. I guess downgrading xserver-xorg-core to Etch would fix the problem.

I would vote for the server reporting Xinerama as enabled even if the
driver does not support it. It might be related to Xinerama now being
implemented on top the Randr-1.2 extensions (since xserver-xorg-core
1.3). Unfortunately, only the intel driver supports Randr-1.2 so far.
Maybe the server assumes something different.

Anyway, I'll forward this bug upstream soon.

Thanks,
Brice