Bug#747037: nvidia-kernel-common: Please use logind/systemd way of setting ACL's

[Laurent Bigonville]

Le Mon, 9 Jun 2014 13:29:05 +0200,
Laurent Bigonville <bigon at debian.org> a écrit :

> Le Thu, 22 May 2014 11:43:32 +0200,
> Andreas Beckmann <anbe at debian.org> a écrit :
> 
> > Control: tag -1 help
> > 
> > On 2014-05-05 00:07, bigon at debian.org wrote:
> > > After quickly scanning the packages in the archive, it seems that
> > > an udev rules file is using old ConsoleKit tags or executables
> > > (udev-acl or ACL_MANAGE).
> > 
> > The ConsoleKit support was contributed by some user a few years ago
> > - unfortunately I have no clue how this works nor can I update it
> > to the current way. A patch (supporting both logind and non-logind
> > usage) would be highly welcome.
> 
> I'm actually not using the NVIDIA proprietary driver at all so it's
> not really easy for me to test.
> 
> In the already existing udev rules, I'm seeing the following:
> 
> 70-uaccess.rules:SUBSYSTEM=="drm", KERNEL=="card*", TAG+="uaccess"
> 
> I'm wondering that just adding a similar rule like is not doing the
> trick:
> 
> SUBSYSTEM=="drm", KERNEL=="nvidia*", TAG+="uaccess"
> 
> Could you please paste the output of the two following commands with
> and without this rule (you maybe need to reboot between the 2)
> 
> udevadm info /dev/nvidiactl
> 
> udevadm info /dev/nvidia*

OK, so I've reinstalled the proprietary drivers on my laptop,
and now I realize that actually the devices are not even created by
udev. I /think/ that this can actually be an issue to set the permission
on the devices when using systemd/logind.

On this machine using systemd 208 devices have the following mode:

crw-rw-rw-. 1 root root 195,   0 jun  9 17:15 /dev/nvidia0
crw-rw-rw-. 1 root root 195, 255 jun  9 17:15 /dev/nvidiactl

Looking on google, I found a quite old patch that was adding sysfs
support to the kernel module, isn't it an option to revive it?

Cheers,

Laurent Bigonville