The Dell XPS 14 9440 produces no sound from its internal speakers while the volume slider moves and apps show audio playing. The Intel Core Ultra 7 155H model pairs a Realtek codec with a Cirrus Logic amplifier, and a missing amplifier or Intel Smart Sound driver after a Windows 11 update is the usual cause of total silence.
Confirm the Output Device
Click the speaker icon → choose Speakers (Realtek) as the output. If only HDMI or a Bluetooth device is listed, Windows lost the internal speaker, which the driver fixes below restore on the XPS 14 9440.
Run the Audio Troubleshooter
Settings → System → Troubleshoot → Other troubleshooters → Audio → Run. It re-enables a muted or disabled speaker. If it says no output devices found, jump to the driver reinstall.
Reinstall the Cirrus and Realtek Drivers
Dell Support for XPS 14 9440 → download Realtek Audio, Intel Smart Sound Technology and Cirrus Logic amplifier drivers. Install in that order and restart. The Cirrus amplifier driver is what actually powers the speakers.
Update BIOS via Dell Command Update
Run Dell Command Update and install any BIOS and audio firmware updates for the XPS 14 9440. BIOS updates can restore detection of the Cirrus amplifier when it disappears from Device Manager after a Windows feature update.
“The Cirrus Logic amplifier driver was the missing piece. Installing it from Dell Support brought the speakers back on my XPS 14 9440.” — Hidayah, Kuching
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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