Comment 0 for bug 1326257

Running the proprietary nvidia drivers in an Optimus config works (Intel+NVIDIA) can discover two issues:

1. Cannot adjust brightness in the guest session (private bug #1290694)
[Test Case]
 * Switch to guest session and adjust brightness from settings or hotkey or command line
    - Expected: Can adjust the brightness
    - Bad behavior: Cannot adjust brightness

2. Black screen while changing the resolution (private bug #1285062)
but switching to the guest session results in a black screen.
[Test Case]
 * Go to display setting, set rotation to counterclockwise/clockwise/180 degrees and click apply
  - Expected results: Can switch display rotation successfully
  - Actual results: Black screen when switching display rotation