Have you upgraded or installed it from scratch? What do you have in /sys/devices/pci0000\:00/0000\:00\:19.0/power/control right after unplugging power?
Have you upgraded or installed it from scratch? pci0000\ :00/0000\ :00\:19. 0/power/ control right after unplugging power?
What do you have in /sys/devices/