Don't scrap the laptop yet. Here is the definitive guide to getting IDT (High Definition Audio Codec) working perfectly on the ProBook 650 G1 under Windows 10 22H2. The ProBook 650 G1 shipped with Windows 7 or 8.1. Its audio chipset uses an IDT 92HD91BXX codec. Microsoft changed the audio stack significantly in Windows 10, and HP never released an official Win10 driver for this specific model.
If you let Windows Update handle it, you usually get the generic "High Definition Audio Device" driver. While this produces basic sound, the , and the "DTS Studio Sound" management software is missing. The Solution: The "Conexant/IDT" Hybrid Method After hours of trial and error, I found a reliable fix. You actually need to force-feed the driver from the HP ProBook 650 G2 (a newer, Windows 10-native model) into the G1. The hardware is similar enough that it works flawlessly. hp probook 650 g1 audio drivers windows 10
Published: October 26, 2023 | Category: Driver Tuning & Legacy Hardware Don't scrap the laptop yet
You install Windows 10, Device Manager shows an exclamation mark, and you have no sound—or worse, the microphone doesn't work for Zoom calls. If you try to install the driver directly from HP’s support page for Windows 7 or 8.1, it usually fails with a cryptic error. Its audio chipset uses an IDT 92HD91BXX codec
If you are deploying these machines in bulk via MDT or SCCM, extract the G2 driver cab and inject the Conexant drivers into your Windows 10 image. It integrates seamlessly.
But there is one persistent ghost that haunts this machine after a clean Windows 10 install: