Fix: Reinstall Realtek Audio Driver from HP Support
Download the Realtek High Definition Audio Driver for the HP EliteBook 845 G11 from HP Support. Uninstall the current Realtek audio device in Device Manager under Sound, video and game controllers (check delete driver software). Restart. Install the HP-certified Realtek driver. The HP-certified Realtek driver for the EliteBook 845 G11 includes the Bang and Olufsen audio tuning data and AMD Hawk Point I2S bus configuration for the Ryzen 7 PRO 8840U platform. Without this driver, the speaker amplifier may not receive the correct initialization parameters for the EliteBook 845 G11 premium speaker hardware.
Fix: Run Windows Audio Troubleshooter
Go to Settings → System → Troubleshoot → Other troubleshooters and run Audio. The Windows Audio troubleshooter automates the steps of checking the Windows Audio service, enumerating audio devices, resetting the audio stack, and verifying driver status. For EliteBook 845 G11 speaker failures caused by Windows Audio service disruption after an update, the troubleshooter typically resolves the issue in one click without requiring manual driver reinstall.
Per Zuraida Ramlan, communications manager using HP EliteBook 845 G11 for video conferences: “Speakers on the EliteBook 845 G11 stopped working after a Windows Update. The speaker icon showed a red X. Ran the Windows Audio Troubleshooter and it found the Windows Audio Endpoint Builder service had stopped. The troubleshooter restarted the service and speakers worked immediately. No driver reinstall was needed.”
Fix: Update HP BIOS
Download the latest BIOS for the HP EliteBook 845 G11 from HP Support. BIOS updates include AMD Hawk Point I2S audio bus initialization firmware. The I2S bus connects the AMD Ryzen 7 PRO 8840U SoC to the Realtek audio codec and speaker amplifier. An outdated BIOS I2S timing configuration can cause the Realtek codec to initialize correctly in device manager but produce no audio output from the speakers because the I2S clock signal from the AMD platform is at an incorrect frequency for the Realtek codec operating mode expected by the EliteBook 845 G11 speaker amplifier.
Frequently Asked Questions
Why are the speakers not working on HP EliteBook 845 G11?
Audio output device switched to headphones or Bluetooth, Windows Audio services stopped, Realtek driver replaced by generic version, or AMD I2S bus BIOS firmware needs updating. Check the audio output device in the taskbar, run the Audio Troubleshooter, reinstall HP Realtek audio driver from HP Support, and update BIOS for I2S audio bus initialization fixes on the Ryzen 7 PRO 8840U platform.
Does HP EliteBook 845 G11 have Bang and Olufsen speakers?
Yes. Select HP EliteBook 845 G11 configurations feature HP Bang and Olufsen audio tuning for the built-in speakers. The Bang and Olufsen audio optimization is implemented via DSP tuning data included in the HP-certified Realtek audio driver package. If the HP Realtek driver is replaced by a generic Realtek or Windows driver, the Bang and Olufsen audio tuning is removed and the speaker output reverts to a generic flat frequency response without the B&O frequency correction and speaker protection profiles.
Can I use headphones and speakers simultaneously on HP EliteBook 845 G11?
No. The HP EliteBook 845 G11 uses an audio multiplexer circuit that switches output between the 3.5mm headphone jack and the built-in speakers. When headphones are plugged into the 3.5mm combo jack, the speakers are muted automatically. Remove headphones to return audio to the speakers. Some Realtek driver configurations allow separate volume control for speakers and headphones simultaneously through Sound settings Multiple Output Device configuration, but the hardware multiplexer prevents simultaneous output to both on the EliteBook 845 G11 physical hardware.
Why does HP EliteBook 845 G11 speaker volume seem very low?
The bang and Olufsen audio tuning in the HP Realtek driver limits maximum volume to protect the speaker hardware from damage at peak output levels. If the HP-certified Realtek driver was replaced by a generic driver, the speaker protection profile is removed and the volume may seem louder initially but risks speaker damage at sustained high volume. Open Realtek Audio Console and confirm the HP preset profile is selected for the EliteBook 845 G11 Bang and Olufsen speakers to restore the correct amplifier tuning with appropriate volume ceiling protection.
Conclusion
Speaker not working on the HP EliteBook 845 G11 Ryzen 7 PRO 8840U is fixed by checking the audio output device in the taskbar selector, restarting Windows Audio and Audio Endpoint Builder services in Services.msc, running the Windows Audio Troubleshooter, reinstalling the HP-certified Realtek audio driver from HP Support, and updating BIOS for AMD I2S audio bus initialization firmware improvements. The Windows Audio Endpoint Builder service stopping after an update is the most common cause and is resolved in seconds by the Windows Audio Troubleshooter without requiring driver reinstall.
Ryan holds a Computer Science degree and has over 20 years of hands-on experience with PC hardware, software, and driver troubleshooting. He is the author behind softwaredriverdownload.com, where he helps everyday users fix driver issues quickly and accurately. Ryan has personally tested most of the fixes on this site across a range of Windows 10 and Windows 11 machines.
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