The script removed the old HDAudio device, deleted the cached Conexant INF, installed the CMedia driver, and then—here was the magic—injected a registry key: HKLM\SYSTEM\CurrentControlSet\Control\Class4d36e96c-e325-11ce-bfc1-08002be10318\0000\DriverDesc to "CMedia CM9880". And added a LowerFilters string to bypass the native HD Audio bus check.
Running it required disabling driver signature enforcement: sound drivers for connex laptop
: Often works in conjunction with the main audio codec on Intel-based models. Troubleshooting "No Sound" Issues The script removed the old HDAudio device, deleted