Plugging headphones into the Lenovo Yoga Slim 7x Gen 9 with Snapdragon X Elite sometimes produces no sound or no device detection at all. This happens because the laptop runs Windows on ARM, which uses different audio drivers compared to x86 machines. Standard Realtek drivers from Windows Update do not cover the Qualcomm audio hardware inside this device. The fix requires downloading the correct ARM audio driver directly from the Lenovo support portal.
Fix 1 — Install the Qualcomm Audio Driver from Lenovo
Go to support.lenovo.com and search for Yoga Slim 7x Gen 9. Navigate to the Drivers and Software section and filter by Audio. Download the Qualcomm audio driver package and run the installer as administrator. The installation adds the correct HAL (Hardware Abstraction Layer) entries for the 3.5mm jack on Snapdragon X Elite. After the installer completes, restart your laptop and plug in your headphones to test.
If the driver does not appear under Audio in the driver list, check the Lenovo Vantage app. Open Lenovo Vantage, go to Device, then System Update. Run a scan and install any audio-related updates that appear. Lenovo Vantage fetches model-specific drivers that the generic Windows Update scan sometimes misses on ARM devices.
Fix 2 — Set Headphones as Default Playback Device
Even with the driver installed, Windows may keep routing audio to the internal speakers. Right-click the speaker icon in the taskbar and choose Sound settings. Under Output, click the dropdown and select your headphones. If you see only the internal speaker option, the driver installation from Fix 1 was not successful and needs to be repeated. Once your headphones appear and are selected, test playback with any music or video. The 3.5mm jack detection on Snapdragon devices is usually automatic once the correct driver is active.
Fix 3 — Run the Windows Audio Troubleshooter
Open Settings and go to System, then Troubleshoot, then Other troubleshooters. Find Playing Audio and click Run. The troubleshooter checks the audio service state, resets it if stopped, and scans for driver conflicts. On ARM devices this step often re-registers the audio endpoint and resolves the jack not-detected issue without requiring a full reinstall. Allow any changes the troubleshooter suggests and restart when prompted.
Fix 4 — Install All Windows 11 ARM Updates
Open Settings, go to Windows Update, and click Check for updates. Expand Optional updates and install any driver updates listed there. Microsoft releases cumulative Windows 11 ARM updates that include audio subsystem patches for Snapdragon devices. Several Lenovo Yoga Slim 7x owners on the Microsoft Support community have reported that the headphone jack started working after a cumulative update without any manual driver installation needed.
The audio jack on my Yoga Slim 7x was silent for two weeks. Installing the Qualcomm driver from the Lenovo support page fixed everything in five minutes. — Ahmad, Petaling Jaya
Ryan holds a Computer Science degree and has spent over 15 years troubleshooting Windows hardware and driver issues across major laptop brands. He writes practical, step-by-step guides for everyday users at softwaredriverdownload.com.
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