tvservice

root@xbian:~# tvservice --modes=CEA
Group CEA has 1 modes:
  (prefer) mode 16: 1920x1080 @ 60Hz 16:9, clock:148MHz progressive
root@xbian:~# tvservice --modes=CEA_3D_SBS
[E] Invalid group 'CEA_3D_SBS'
root@xbian:~# tvservice --modes=CEA_3D_TV
[E] Invalid group 'CEA_3D_TV'
root@xbian:~# tvservice --modes=CEA_3D_TB
[E] Invalid group 'CEA_3D_TB'
root@xbian:~# tvservice -s
state 0x12001a [HDMI CEA (16) RGB lim 16:9], 1920x1080 @ 60Hz, progressive
root@xbian:~# tvservice -d > edid
tvservice: option requires an argument -- 'd'
root@xbian:~# tvservice -d edid
Written 256 bytes to edid
root@xbian:~# cat edid
xÿÿÿÿÿî
Úÿ£XJ¢)IK:q8-@X,Eº!q X,%º!üDENON-AVAMP
 ý=D
      *EqO #$

;=ÀPY~_WaTgM_ãl
               ¸-ÀIrQÐ n(Uº!
Ð à->º!
Ð à->
     !wroot@xbian:~#
root@xbian:~# tvservice -n
device_name=DON-DENON-AVAMP
root@xbian:~# tvservice -m DMT
Group DMT has 0 modes:
root@xbian:~# tvservice -m CEA
Group CEA has 1 modes:
  (prefer) mode 16: 1920x1080 @ 60Hz 16:9, clock:148MHz progressive
root@xbian:~# tvservice -p
Powering on HDMI with preferred settings
root@xbian:~# tvservice -s
state 0x12001a [HDMI CEA (16) RGB lim 16:9], 1920x1080 @ 60Hz, progressive