In the process of [Xorg cleanup][1] the update requires manual
intervention when you hit this message:
:: installing xorgproto (2019.2-2) breaks dependency 'inputproto' required by lib32-libxi
:: installing xorgproto (2019.2-2) breaks dependency 'dmxproto' required by libdmx
:: installing xorgproto (2019.2-2) breaks dependency 'xf86dgaproto' required by libxxf86dga
when updating, use: `pacman -Rdd libdmx libxxf86dga && pacman -Syu` to perform the upgrade. After the update it will be safe to also remove
the "xorgproto" package.
[1]: https://bugs.archlinux.org/task/64892
URL: https://www.archlinux.org/news/xorg-cleanup-requires-manual-intervention/