The /dev/mediaX and /dev/cecX devices belong to the video group. Add two default rules for that. The /dev/cecX devices were introduced in kernel 4.8 in staging and moved out of staging in 4.10. These devices support the HDMI CEC bus. The /dev/mediaX devices are much older, but because they are not used very frequently nobody got around to adding this rule to systemd. They let the user control complex media pipelines. --- rules/50-udev-default.rules.in | 2 ++ 1 file changed, 2 insertions(+) diff --git a/rules/50-udev-default.rules.in b/rules/50-udev-default.rules.in index 064f66a97..e55653302 100644 --- a/rules/50-udev-default.rules.in +++ b/rules/50-udev-default.rules.in @@ -34,6 +34,8 @@ SUBSYSTEM=="video4linux", GROUP="video" SUBSYSTEM=="graphics", GROUP="video" SUBSYSTEM=="drm", GROUP="video" SUBSYSTEM=="dvb", GROUP="video" +SUBSYSTEM=="media", GROUP="video" +SUBSYSTEM=="cec", GROUP="video" SUBSYSTEM=="sound", GROUP="audio", \ OPTIONS+="static_node=snd/seq", OPTIONS+="static_node=snd/timer" -- 2.11.0