Black Screen with Hyperion+Windows+Grabber

Hi everyone. Until yesterday, I was using Hyperion on a Raspberry Pi with a Firestick (Firestick connected to an HDMI splitter, a cable to the TV, and a cable to the HDMI-to-USB converter connected to the Pi).

Today, I removed the Pi and used a mini PC with Windows 11. Only now, I'm seeing a black screen.

Note that the hardware configuration hasn't changed.

I used the latest version of Hyperion and even version 2.0.16, but nothing.

I tried changing the encoding format, but nothing. Any suggestions?

but this way he captures the Windows screen not the one that comes from the USB where the Fire TV is connected

this is debug log:

2025-09-03T09:07:22.243Z [LEDDEVICE|Firetv] (DEBUG) (LedDevice.cpp:181:LedDevice::enable()) Device's enablement failed - Start retry timer. Retried already done [5], isEnabled: [0]
2025-09-03T09:07:22.243Z [LEDDEVICE|Firetv] (INFO) Start 6. attempt of 6 to enable the device in 15 seconds
2025-09-03T09:07:37.244Z [LEDDEVICE|Firetv] (DEBUG) (LedDevice.cpp:140:LedDevice::enable()) Enable device adalight'
2025-09-03T09:07:37.244Z [LEDDEVICE|Firetv] (INFO) Opening UART: COM6
2025-09-03T09:07:37.244Z [LEDDEVICE|Firetv] (DEBUG) (ProviderRs232.cpp:167:ProviderRs232::tryOpen()) _rs232Port.open(QIODevice::ReadWrite): COM6, Baud rate [115200]bps
2025-09-03T09:07:37.246Z [LEDDEVICE|Firetv] (DEBUG) (ProviderRs232.cpp:172:ProviderRs232::tryOpen()) portName: COM6
2025-09-03T09:07:37.246Z [LEDDEVICE|Firetv] (DEBUG) (ProviderRs232.cpp:173:ProviderRs232::tryOpen()) systemLocation: \\.\COM6
2025-09-03T09:07:37.246Z [LEDDEVICE|Firetv] (DEBUG) (ProviderRs232.cpp:174:ProviderRs232::tryOpen()) description: USB-SERIAL CH340
2025-09-03T09:07:37.246Z [LEDDEVICE|Firetv] (DEBUG) (ProviderRs232.cpp:175:ProviderRs232::tryOpen()) manufacturer: wch.cn
2025-09-03T09:07:37.246Z [LEDDEVICE|Firetv] (DEBUG) (ProviderRs232.cpp:176:ProviderRs232::tryOpen()) vendorIdentifier: 0x1a86
2025-09-03T09:07:37.246Z [LEDDEVICE|Firetv] (DEBUG) (ProviderRs232.cpp:177:ProviderRs232::tryOpen()) productIdentifier: 0x7523
2025-09-03T09:07:37.246Z [LEDDEVICE|Firetv] (DEBUG) (ProviderRs232.cpp:178:ProviderRs232::tryOpen()) serialNumber:
2025-09-03T09:07:37.246Z [LEDDEVICE|Firetv] (ERROR) Device disabled, device 'adalight' signals error: 'Accesso negato.'
2025-09-03T09:07:37.246Z [LEDDEVICE|Firetv] (DEBUG) (LedDevice.cpp:181:LedDevice::enable()) Device's enablement failed - Start retry timer. Retried already done [6], isEnabled: [0]
2025-09-03T09:07:37.246Z [LEDDEVICE|Firetv] (ERROR) Device disabled. Maximum number of 6 attempts enabling the device reached. Tried for 105 seconds.


I also have problems with Arduino nano where the sketch with the LEDs is installed

From what I understand, the problem is Windows:

I tried connecting the HDMI to USB port on another computer, and it didn't work.

I connected the Firestick directly. I thought it was an adapter or splitter issue, but it still didn't work.

I tried disabling the Windows antivirus and firewall, but it still didn't work. I don't know what the problem is.

Here's the HDMI-USB. ( https://www.amazon.it/dp/B0BL3L7W11?tag=hyperioforum-21&ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_2 )

I'd like to use Arduino because I want to manage the LEDs via a local controller and not over a network like wled.

The strange thing is that if I connect everything to the Pi, it works perfectly on Windows.

I solved it by following this video: