Document rootless Xorg

[ericonr]

See void-linux/void-packages#13754

Maybe with elogind and the elogind build option in Xorg? I don't know if we should give instructions to build packages locally with xbps-src in void-docs.

[sgn]

On 2021-01-29 17:58:51-0800, Érico Nogueira Rolim ***@***.***> wrote: See void-linux/void-packages#13754 Maybe with elogind and the elogind build option in Xorg? I don't know if we should give instructions to build packages locally with xbps-src in void-docs.

Not sure if this is a terrible idea but adding the user to "input" group and change "needs_root_right" to auto, Xorg will run with normal priviledge.

[ericonr]

Supposedly most of the reason for seatd and elogind existing is that being in input group is bad.

[heliocat]

The input group grants read/write power to everything in /dev/input which is probably not what you want.

[20NE]

1. I removed lightdm and use xinit instead, which works on arch linux.
2. xbps-src build xorg-server with elogind(ON), and elogind-daemon is running
3. change "needs_root_right" to "auto" or "no", both lead to no input in X