[vexisu@PowerBook ~]$ xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x6e cap: 0xb, Source Output, Sink Output, Sink Offload crtcs: 4 outputs: 5 associated providers: 1 name:Intel
Provider 1: id: 0x45 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 6 outputs: 0 associated providers: 1 name:TURKS @ pci:0000:01:00.0