Public bug reported:
Binary package hint: udev
Ubuntu Jaunty amd64, udev: 136-4
AFAIK, users belonging to group video used to have access to hardware-
accelerated graphics through /dev/dri/card* (user: root, group: video,
perm: 0660). As of my latest update, not so. Seems like in the update
from udev: 124-12 to udev:136-4, the udev rules were reorganized. The
files migrated from /etc/udev/rules.d to /lib/udev/rules.d. Some
filenames have changed and some rules have moved. I tracked it down to
a udev rule for SUBSYSTEM=="drm" that used to be in
/etc/udev/rules.d/40-permissions.rules and is missing in
/lib/udev/rules.d/50-udev-default.rules. Was this rule left out
intentionally?
** Affects: udev (Ubuntu)
Importance: Undecided
Status: New
** Tags: dri drm group udev video
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udev missing rule to get group video on /dev/dri/card0
https://bugs.launchpad.net/bugs/317430
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