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| video_grabbing_issues [2017/10/07 13:20] – created danimo | video_grabbing_issues [2017/10/07 16:10] (current) – [Vide Grabbing Issues] meise |
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| ====== Vide Grabbing Issues ====== | ====== Video Grabbing Issues ====== |
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| This page collects known issues and workarounds for common issues with video grabbing at various conferences. Here we try to collect different issues that we've encountered, and workarounds if we are aware of any that have helped us in the past. Please add useful URLs to the end of this article. | This page collects known issues and workarounds for common issues with video grabbing at various conferences. Here we try to collect different issues that we've encountered, and workarounds if we are aware of any that have helped us in the past. Please add useful URLs to the end of this article. |
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| ===== Hardware issues ===== | ===== Hardware Issues ===== |
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| * **Symptom**: VGA projector loses keeps losing contact with laptop every once in a while | * **Symptom**: VGA projector loses keeps losing contact with laptop every once in a while |
| * **Fix/Workaround**: Check projector for supported resolutions. Try to add an active, mediating device (e.g. Tronsmart, Dr. HDMI) in the cable pathway to the projector, ideally midways if you suspect cabling issues. | * **Fix/Workaround**: Check projector for supported resolutions. Try to add an active, mediating device (e.g. Tronsmart, Dr. HDMI) in the cable pathway to the projector, ideally midways if you suspect cabling issues. |
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| ===== Software issues ===== | ===== Software Issues ===== |
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| ====== macOS ====== | ==== macOS ==== |
| * **Symptom**: HDMI-connected projector shows black and white pixel noise | * **Symptom**: HDMI-connected projector shows black and white pixel noise |
| * **Symptom**: HDMI-connected projector shows green screen for a second, then gets disconnected. | * **Symptom**: HDMI-connected projector shows green screen for a second, then gets disconnected. |
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| ====== Windows ====== | ==== Windows ==== |
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| ====== Linux ====== | ==== Linux ==== |
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| ===== Sources to be investigated ===== | ===== Issues to be Investigated ===== |
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| | When do Windows and OS X enable HDCP? What ways are there to make sure there are no HDCP issues during a presentation when no video content is shown? |
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| * https://www.macworld.com/article/3042537/streaming-services/how-to-fix-hdcp-errors-with-external-monitors-in-os-x.html | * https://www.macworld.com/article/3042537/streaming-services/how-to-fix-hdcp-errors-with-external-monitors-in-os-x.html |
| * https://www.macworld.com/article/3116414/macs/oops-you-cant-play-most-protected-digital-video-on-an-external-mac-monitor.html | * https://www.macworld.com/article/3116414/macs/oops-you-cant-play-most-protected-digital-video-on-an-external-mac-monitor.html |