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title: "Troubleshooting Classroom Projectors by Screen Colors"
canonical: "https://tech.calpoly.edu/space/CPKB/2111242295/Troubleshooting%20Classroom%20Projectors%20by%20Screen%20Colors"
format: markdown
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If you encounter a projector that will only project a solid color screen, use the information below to help troubleshoot. Try these recommended actions based on the color that is being displayed…





> ✅ Recognizing the colored error screens will help technical staff diagnose the issue. If you have tried the actions above and still need assistance, please [submit a Classroom A/V Support request](https://calpoly.atlassian.net/servicedesk/customer/portal/2/group/8/create/26).


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