[ddccontrol-users] warning monitor acer x223w 22 pollici

[ivano m. <meg...@gm...>]

ivano@ubuntu:~$ LANG= LC_ALL= ddccontrol -p -c -d
ddccontrol version 0.4.2
Copyright 2004-2005 Oleg I. Vdovikin (ol...@cs...)
Copyright 2004-2006 Nicolas Boichat (ni...@bo...)
This program comes with ABSOLUTELY NO WARRANTY.
You may redistribute copies of this program under the terms of the GNU
General Public License.

Probing for available monitorsradeon_open: cannot open /dev/mem: Permission
denied

Detected monitors :
No monitor supporting DDC/CI available.
If your graphics card need it, please check all the required kernel modules
are loaded (i2c-dev, and your framebuffer driver).

Thanks