A desktop technician is troubleshooting various display and projector anomalies across corporate workstations. Match each reported visual symptom on the left to its most likely hardware or configuration root cause on the right.
- Distorted trapezoidal image displayed wider at the top than at the bottom of a projection screenPhysical mis-alignment of the projector relative to the screen requiring digital keystone adjustment
- LCD monitor displaying blurry text and stretched graphics after replacing a graphics cardDisplay resolution set to a non-native aspect ratio or pixel grid configuration in the operating system
- Projector unexpectedly powers down after 10 minutes of operation with a flashing red status lightThermal overload or cooling fan failure causing safety shutdown to prevent lamp damage
- Random colored dots, lines, and checkerboard patterns flickering across the screen during graphics-intensive tasksGPU VRAM overheating or failing memory modules producing rendering artifacts
Answer
Trapezoidal projected images correspond to keystone mis-alignment; blurry LCD text corresponds to non-native resolution settings; unexpected projector power-offs with warning lights correspond to thermal overheat shutdowns; and random flickering specks or patterns correspond to GPU VRAM failure or overheating.
Each display symptom maps directly to its hardware or configuration root cause: keystone distortion results from physical projection angles; blurry LCD output occurs when OS resolution deviates from native pixel counts; automated projector shutdowns with alert lamps stem from thermal protection circuits; and graphic artifacts under load are caused by VRAM overheating or damage.
Step-by-Step Solution
Key Concept
Video, Display, and Projector Troubleshooting Symptom Isolation
Estimated Time:1m 30s