A tier 2 desktop technician is reviewing two escalation tickets regarding video and display hardware:
• Ticket 1: An editor's workstation produces localized screen artifacts (random colored dots and line tearing) exclusively when rendering complex 3D projects, but operates normally during standard text editing.
• Ticket 2: A newly issued laptop with an organic light-emitting diode (OLED) display has a completely black screen, and a junior analyst proposes replacing the screen's high-voltage inverter.
Which of the following actions or diagnostic conclusions represent the BEST technical evaluation of these tickets? (Select TWO.)
- Attributing the artifacts in Ticket 1 to GPU overheating or failing video RAM rather than a corrupt display driver.Cevap
- BReinstalling the graphics card driver in Ticket 1, since VRAM hardware faults always cause persistent distortion regardless of GPU processing load.
- Rejecting the repair proposal in Ticket 2, because OLED screens utilize self-emitting pixels and do not contain backlight inverters.Cevap
- DOrdering a replacement CCFL inverter board for Ticket 2 to restore high-voltage power to the OLED panel backlight grid.
Cevap
The correct conclusions are attributing the artifacts in Ticket 1 to GPU overheating or failing video RAM, and rejecting the inverter repair proposal in Ticket 2 because OLED screens do not use backlight inverters.
Visual artifacts such as random dots and tearing occurring exclusively under 3D rendering workloads point directly to GPU overheating or failing VRAM, as elevated temperatures under heavy load cause memory read/write errors. Furthermore, OLED displays do not use backlights or inverter boards because each pixel generates its own illumination; thus, an inverter replacement for an OLED display is fundamentally invalid.
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Anahtar Kavram
Display artifact root causes and display backlight technology differences