Edit: /usr/lib/udev/rules.d/71-seat.rules (3782B)
# SPDX-License-Identifier: LGPL-2.1+
#
# This file is part of systemd.
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
ACTION=="remove", GOTO="seat_end"
TAG=="uaccess", SUBSYSTEM!="sound", TAG+="seat"
SUBSYSTEM=="sound", KERNEL=="card*", TAG+="seat"
SUBSYSTEM=="input", KERNEL=="input*", TAG+="seat"
SUBSYSTEM=="graphics", KERNEL=="fb[0-9]*", TAG+="seat"
# Assign keyboard and LCD backlights to the seat
SUBSYSTEM=="leds", TAG+="seat"
SUBSYSTEM=="backlight", TAG+="seat"
# HyperV currently doesn't do DRM, hence we need to synthesize for HyperV's fb device instead
SUBSYSTEM=="graphics", KERNEL=="fb[0-9]", DRIVERS=="hyperv_fb", TAG+="master-of-seat"
# Allow efifb / uvesafb to be a master if KMS is disabled
SUBSYSTEM=="graphics", KERNEL=="fb[0-9]", IMPORT{cmdline}="nomodeset", TAG+="master-of-seat"
# Allow any PCI graphics device to be a master and synthesize a seat if KMS
# is disabled and the kernel doesn't have a driver that would work with this device.
SUBSYSTEM=="pci", ENV{ID_PCI_CLASS_FROM_DATABASE}=="Display controller", \
ENV{DRIVER}=="", IMPORT{cmdline}="nomodeset", TAG+="seat", TAG+="master-of-seat"
SUBSYSTEM=="drm", KERNEL=="card[0-9]*", TAG+="seat", TAG+="master-of-seat"
SUBSYSTEM=="usb", ATTR{bDeviceClass}=="09", TAG+="seat"
# 'Plugable' USB hub, sound, network, graphics adapter
SUBSYSTEM=="usb", ATTR{idVendor}=="2230", ATTR{idProduct}=="000[13]", ENV{ID_AUTOSEAT}="1"
# qemu (version 2.4+) has a PCI-PCI bridge (-device pci-bridge-seat) to group
# devices belonging to one seat. See:
# http://git.qemu.org/?p=qemu.git;a=blob;f=docs/multiseat.txt
SUBSYSTEM=="pci", ATTR{vendor}=="0x1b36", ATTR{device}=="0x000a", TAG+="seat", ENV{ID_AUTOSEAT}="1"
# Video adapter of Parallels virtualization platform
# Seat should be synthesized for it. But there's no in-kernel driver for this
# device so matching by vid/pid.
SUBSYSTEM=="pci", ATTRS{vendor}=="0x1ab8", ATTRS{device}=="0x4005", TAG+="seat", TAG+="master-of-seat"
# Mimo 720, with integrated USB hub, displaylink graphics, and e2i
# touchscreen. This device carries no proper VID/PID in the USB hub,
# but it does carry good ID data in the graphics component, hence we
# check it from the parent. There's a bit of a race here however,
# given that the child devices might not exist yet at the time this
# rule is executed. To work around this we'll trigger the parent from
# the child if we notice that the parent wasn't recognized yet.
# Match parent
SUBSYSTEM=="usb", ATTR{idVendor}=="058f", ATTR{idProduct}=="6254", \
ATTR{%k.2/idVendor}=="17e9", ATTR{%k.2/idProduct}=="401a", ATTR{%k.2/product}=="mimo inc", \
ENV{ID_AUTOSEAT}="1", ENV{ID_AVOID_LOOP}="1"
# Match child, look for parent's ID_AVOID_LOOP
SUBSYSTEM=="usb", ATTR{idVendor}=="17e9", ATTR{idProduct}=="401a", ATTR{product}=="mimo inc", \
ATTR{../idVendor}=="058f", ATTR{../idProduct}=="6254", \
IMPORT{parent}="ID_AVOID_LOOP"
# Match child, retrigger parent
SUBSYSTEM=="usb", ATTR{idVendor}=="17e9", ATTR{idProduct}=="401a", ATTR{product}=="mimo inc", \
ATTR{../idVendor}=="058f", ATTR{../idProduct}=="6254", \
ENV{ID_AVOID_LOOP}=="", \
RUN+="/bin/udevadm trigger --parent-match=%p/.."
TAG=="seat", ENV{ID_PATH}=="", IMPORT{builtin}="path_id"
TAG=="seat", ENV{ID_FOR_SEAT}=="", ENV{ID_PATH_TAG}!="", ENV{ID_FOR_SEAT}="$env{SUBSYSTEM}-$env{ID_PATH_TAG}"
SUBSYSTEM=="input", ATTR{name}=="Wiebetech LLC Wiebetech", RUN+="/bin/loginctl lock-sessions"
LABEL="seat_end"