Correction - after two restarts switching back and forth, the output is as follows:
sudo cat /sys/kernel/debug/vgaswitcheroo/switch 0:IGD:+:Pwr:0000:00:02.0 1:DIS: :Off:0000:01:00.0
Correction - after two restarts switching back and forth, the output is as follows:
sudo cat /sys/kernel/ debug/vgaswitch eroo/switch :Pwr:0000: 00:02.0
0:IGD:+
1:DIS: :Off:0000:01:00.0