A field technician is troubleshooting a laptop equipped with an organic light-emitting diode (OLED) display screen. The laptop powers on and successfully displays video on an external projector, but the internal OLED screen remains completely dark. Which of the following statements correctly evaluate the system symptoms and diagnostic steps for this issue? (Select TWO.)
- The graphics processing unit is operating correctly because it successfully renders and outputs video to the external projector.Answer
- The failure is localized to the internal panel, screen ribbon cable, or system board connection rather than a backlight inverter.Answer
- CThe dark display is caused by a blown CCFL backlight inverter board that must be replaced.
- DThe graphics driver is corrupted and requires reinstallation to restore signal pathing to the internal display connector.
Answer
The graphics processing unit is operating correctly because video is output to the external projector, and the failure is localized to the internal panel, ribbon cable, or connection rather than an inverter board.
The correct options recognize that a functional external video signal proves the GPU is operational, and that OLED screens lack traditional backlight inverters, isolating the issue to the internal OLED panel, ribbon cabling, or motherboard display headers.
Step-by-Step Solution
Key Concept
Display Hardware Isolation and OLED Panel Troubleshooting