Graphics Card Artifacts and Output Repair

Display stripes, colour blocks, or no signal on external monitors usually point to graphics card or video output port issues. Our on‑site diagnosis distinguishes between dedicated and integrated graphics through monitor substitution tests, driver reinstallation, and power phase checks. If we find solder joint damage or VRAM corruption, we recommend depot repair or module replacement; if the issue is port oxidation, we clean and enhance contact. The troubleshooting process is interconnected; because graphics repairs involve chip‑level work and are highly complex, a deposit is required to initiate the on‑site diagnosis, and the final solution and cost are determined by the actual fault type and required operation difficulty.