$ xrandr --query
Screen 0: minimum 320 x 200, current 2732 x 768, maximum 8192 x 8192
VGA-0 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 575mm x 323mm
   1366x768      59.96*+
   1280x768      59.99
   1280x720      60.00
   1024x768      60.00
   800x600       60.32    56.25
   640x480       59.94
   720x400       70.08
DVI-0 connected 1366x768+1366+0 (normal left inverted right x axis y axis) 575mm x 323mm
   1366x768      59.96*+
   1920x1080     60.00    59.94
   1280x768      59.99
   1280x720      60.00    59.94
   1024x768      60.00
   800x600       60.32    56.25
   720x480       60.00    59.94
   640x480       60.00    59.94
   720x400       70.08

$ xrandr --listproviders
Providers: number : 1
Provider 0: id: 0x53 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 2 outputs: 2 associated providers: 0 name:SUMO @ pci:0000:00:01.0

$ xrandr --listmonitors
Monitors: 2
 0: +*VGA-0 1366/575x768/323+0+0  VGA-0
 1: +DVI-0 1366/575x768/323+1366+0  DVI-0

$ xrandr --listactivemonitors
Monitors: 2
 0: +*VGA-0 1366/575x768/323+0+0  VGA-0
 1: +DVI-0 1366/575x768/323+1366+0  DVI-0