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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - logind: Add a udev rule to tag all DRM cards with master-of-seat"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90822#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - logind: Add a udev rule to tag all DRM cards with master-of-seat"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90822">bug 90822</a>
from <span class="vcard"><a class="email" href="mailto:bugzilla@tecnocode.co.uk" title="Philip Withnall <bugzilla@tecnocode.co.uk>"> <span class="fn">Philip Withnall</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=116247" name="attach_116247" title="logind: Add a udev rule to tag all DRM cards with master-of-seat">attachment 116247</a> <a href="attachment.cgi?id=116247&action=edit" title="logind: Add a udev rule to tag all DRM cards with master-of-seat">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=90822&attachment=116247'>[review]</a>
logind: Add a udev rule to tag all DRM cards with master-of-seat
This is needed for generic DRM devices like the VirtualBox vboxvideo
driver, which exposes itself as a generic, ID-less DRM device at
/dev/dri/card0 (after applying this commit):
$ udevadm info --query=all --path \
/sys/devices/pci0000:00/0000:00:02.0/drm/card0
P: /devices/pci0000:00/0000:00:02.0/drm/card0
N: dri/card0
E: DEVNAME=/dev/dri/card0
E: DEVPATH=/devices/pci0000:00/0000:00:02.0/drm/card0
E: DEVTYPE=drm_minor
E: ID_FOR_SEAT=drm-pci-0000_00_02_0
E: ID_PATH=pci-0000:00:02.0
E: ID_PATH_TAG=pci-0000_00_02_0
E: MAJOR=226
E: MINOR=0
E: SUBSYSTEM=drm
E: TAGS=:master-of-seat:seat:uaccess:
E: USEC_INITIALIZED=59893
Without this patch, the capabilities for a seat on a VirtualBox
installation of systemd v219 incorrectly show it as non-graphical, even
though I can type these commands from an xterm:
$ loginctl show-seat seat0
Id=seat0
CanMultiSession=yes
CanTTY=yes
CanGraphical=no
…</pre>
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