I get a blank TV screen after HyperHDR starts. #99
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Hi - noob query. I hope you can help and resolve my bug. I'm really impressed with HyperHDR so far and look forward to using it as an everyday thing when my family and I watch TV. Issue - My TV screen goes blank after HyperHDR starts. Before data pin from LED connected to GPIO18 I have an image on the TV and can see the image on the HyperHDR live screen feature After data pin from LED connected to GPIO18 and I reboot HyperHDR I see the TV image Equipment My setup is installed as per this YouTube video (https://www.youtube.com/watch?v=J26oYlKyq7Q&t=1127s) - with power supply powering LED and RiP4, with data cable on GPIO18 RiP4 - 4gb Input to 4k Capture Card Apple 4k TV (2021 version) Here is my log: |
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Replies: 5 comments 2 replies
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First of all: HyperHDR doesn't have any possibility to turn off the video on your TV if external grabber is used. I can see in your logs that HyperHDR tries to initialize the video grabber but it doesn't provide any video stream...simply it doesn't work. So at this point I guess the problem is the grabber (or HDMI splitter if you use it): broken or it receives unsupported video format. |
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Thanks awawa-dev for prompt reply. The log above was with the data pin in GPIO18 {i only get this issue when the pin is placed into the RPi4 board). The following log is without the datapin in place. (also see image of the live video capture) 2021-08-10T14:19:50.054Z [MAIN] (INFO) Database path: '/.hyperhdr/db/hyperhdr.db', readonlyMode = disabled |
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I have an under-voltage detected when i looked at dmesg. Could that be an issue? |
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OK, here it works fine actually. But again there is no software possibility that HyperHDR could turn off your TV video stream.
it could cause your video grabber to malfunction of course. But I don't see any trace of the grabber's sudden disconnections in logs you provided. |
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Without data pin connected the LED strip stays black and it almost doesn't draw electricity. So after you connect it we have a new situation: are you sure that the power supply for the LED strip is reliable (I experienced some epic failures with Chinese models)?
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Without data pin connected the LED strip stays black and it almost doesn't draw electricity. So after you connect it we have a new situation: are you sure that the power supply for the LED strip is reliable (I experienced some epic failures with Chinese models)?
I see that you use some kind of adapter between USB-C and your LED power supply? It's not a good solution and leads to many problems also with a grabber (I described my problems with Rpi3 and that type of connection on my blog ).
I suggest you to test a bit different setup to exclude problems with your current connection and to isolate the grabber&RPI from the LED strip power supply: