My laptop has two cards and I can confirm this problem as well.
02:00.0 VGA compatible controller: nVidia Corporation C77 [GeForce 9100M G] (rev a2) 03:00.0 VGA compatible controller: nVidia Corporation G98 [GeForce 9300M GS] (rev a1)
My laptop has two cards and I can confirm this problem as well.
02:00.0 VGA compatible controller: nVidia Corporation C77 [GeForce 9100M G] (rev a2)
03:00.0 VGA compatible controller: nVidia Corporation G98 [GeForce 9300M GS] (rev a1)