[systemd-devel] logind: multiseat without framebuffer graphic cards

[Kay Sievers]

On Sat, Nov 24, 2012 at 10:46 PM, Lennart Poettering
<lennart at poettering.net> wrote:

> This sounds as if it should be tagged with uaccess, so that it is
> managed by dynamic ACLs as sessoins become active and inactive.
>
> Kay, what's the story behind /dev/snd/seq and ACLs?

Should work fine when the driver is loaded. The module is usually not
loaded though.

The auto-loading on user access by the kernel does not trigger,
because the ACL only gets applied to a real device, not a "dead"
device node.

So, either the primary permissions of the node need to be relaxed, the
module needs to be always force-loaded, or the ACL setting logic would
need to be changed to include "dead" nodes without a device.

Kay