Package xf86-video-sis671
(https://aur.archlinux.org/packages.php?ID=34256) is outdated, broken
and lacks some features that xf86-sis-m671
(https://aur.archlinux.org/packages.php?ID=47620) have (support for
1366x768 resolution and others). Anyway it is just feature-lacking
version of xf86-video-sisimedia in [community] and therefore should be
removed and have it's votes merged into xf86-sis-m671 to preserve votes
of sis761 chipset owners in AUR.
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My AUR packages - https://aur.archlinux.org/packages.php?SeB=m&K=AlexanderR