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The system will test whether DirectX is working, but how you will use the sound card to test it, if it is not working, it will not be detected by the system.
REALTEK HIGH DEFINITION AUDIO WINDOWS 7 DRIVERS
What I did was to fully uninstall any realtek drivers and then reboot.
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Recently purchased a legion 5 pro 16ACH6H i am having issues with using its speakers while Playing audio as frequently there is a cracking or popping sound which i have found pretty annoying! Reply 2. After a few reboots, this changed to a Realtek audio driver. So I ended up Windows 10 Pro 20H2 but for some reason, I cannot get audio working at all. Press Windows + R to open the Run window 2. 5 mm jack for hassle-free multi-platform support. Using F1 to mute and unmute the sound would make the speakers work again, but it was still annoying. Go to the Sound tab in the DirectX Diagnostic Tool.