Add video user for drm devices

[kwm]

Summary

Make drm 1 and 2 create devices under /dev/dri which are owned by root:video.

I don't know if the group video GID is the correct value, we can always change it.

[dumbbell]

As discussed on IRC, GID 90 is already taken by firebird.

On Linux, there is no standard GID. Debian uses 44, Gentoo uses 27 for instance.

sys/dev/drm/drmP.h

184 ↗

(On Diff #2616)

Please add a comment to recall the group name.

sys/dev/drm2/drmP.h

204 ↗

(On Diff #2616)

Likewise.

[kwm]

Use a unused GID, 90 is already in use in ports by firebird.
Add comment in drmP.h

[dumbbell]

We need to document the change in UPDATING, just in case it conflicts with user-created groups.

I think there is no changes for the user otherwise. The X.Org server runs setuid root, so the group is irrelevant.

[dumbbell]

I repost my last comment, because I forgot to set the "Action" properly.

The comment was: we need to document the change in UPDATING, just in case it conflicts with user-created groups.

[kwm]

Add updating entry

[kwm]

Catch up with src changes.

[kwm]

new UPDATING

[dumbbell]

UPDATING

38 ↗

(On Diff #7800)

I would say:

If you want to (...)

40 ↗

(On Diff #7800)

Instead of hard-coding your username, you could use:

# pw groupmod video -m $USER

[kwm]

UPDATING tweaks