However, we still have quite a few laptops that still cannot output sound to the boards. This worked for a couple laptops.įor some of the laptops that still weren't working after the previous fix, installing the latest Realtek Audio Driver from the support website fixed the issue. The first fix we found was disabling Intel(R) Smart Sound Technology (Intel(R) SST) OED under System Devices in Device Manager. However, only using the laptops without a monitor is not ideal for our setup. The only time I've seen it work without any further troubleshooting was connected directly to a promethean board only, no external monitor or docking station. This seems to happen whether the laptop is open or closed, connected via docking station, or directly through HDMI port on laptop. When connected to the promethean board, it does not recognize the board as an audio output. The setup is as follows: Latitude 5420 -> dell docking station -> monitor and Promethean Board. We have tried implementing a few fixes, and they only work some of the time. I am a computer technician for a local public school district, and we're noticing repeated issues with Latitude 5420s on Windows 10 not detecting Promethean boards as a sound output.
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