Can HDR signal to non-HDR projector cause issues or damage - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 3 Old 05-19-2019, 09:03 PM - Thread Starter
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Can HDR signal to non-HDR projector cause issues or damage

Hello,

I have a Sony VPLHW45ES projector with a computer hooked up through a STRZA1100ES receiver. The computer has a decent graphics card - Nvidia GTX1070.
From time to time, I will load up a video game through the computer with the projector on low-input mode. At one point I saw an HDR setting within one of the games video settings and turned it on. This caused my projector image to get somewhat bright and washed out. I turned it off but had to restart everything to get the image back to normal. My question is - can sending an HDR signal to a non-HDR projector cause any damage or does it simply mean it cannot display it properly and everything is fine. I just want to ensure no damage. Thanks.
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post #2 of 3 Old 05-20-2019, 12:15 AM
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I doubt it will do any damage and under most circumstances HDCP protection won't allow it anyway. No projector can really display HDR effectively without some form of tone mapping the signal to SDR.

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post #3 of 3 Old 05-22-2019, 02:44 PM
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It is extremely unlikely that a resolution setting will damage a projector.

HDR requires 10-bit or 12-bit color. The Sony doesn't work with the extended color palette, so it didn't know how to do things properly.

No big deal, but no a useful thing to send to your projector.

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