The controlD device

Dave Airlie airlied at
Fri Oct 21 07:18:04 PDT 2011

On Fri, Oct 21, 2011 at 3:06 PM, Thomas Hellstrom <thellstrom at> wrote:
> Dave,
> What is the drm control device nodes really used for?
> On my fc14 system it seems like it has world rw privileges, and full access
> to all modesetting ioctls.
> Is that the intention?

No, and I just realised we packaged a broken udev rule.

It should be root only, oops.

Its intention is for setting up multi-seat and gpgpu access to the drm.

change /etc/udev/rules.d/91-modeset.rules to be 0600.


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