Hello! How are you?
You can try some steps, such as performing a clean installation of the audio driver using DDU. The video driver can cause this issue, as it may interfere with the audio from the HDMI port and the laptop's speakers. Reinstall both.
- Go to your video card manufacturer's website (Links below) > Search for your video card or processor > Download the latest driver.
AMD:
https://www.amd.com/en/support/download/drivers.html
Nvidia:
https://www.nvidia.com/en-us/drivers/
Intel:
https://www.intel.com/content/www/us/en/download-center/home.html
- If you don’t know which your Video Driver is, press WINDOWS + X > Maximize the window > Select Task Manager > Click the Performance > Take a Screenshot GPU tab.
- Download DDU from the website below. Click *** Download DDU "Installer" ***.
https://www.wagnardsoft.com/forums/viewtopic.php?t=5016
- Install DDU.
DISCLAIMER: These sites are not from Microsoft, but they appear to provide accurate and safe information. Be wary of ads that may advertise products that are often classified as PUPs (Potentially Unwanted Products). Research any product advertised on the site before deciding to download and install it.
- Enter Safe Mode. Press the shortcut CTRL + R > Type ''msconfig'' (without quotes) > Click on the ''System Boot'' tab > Check the ''Safe Boot'' option > Click ''OK''.
- In Safe Mode, open DDU > Select your GPU > Select the AMD, Nvidia or Intel device > Click on "Clean and Restart" > Wait for the program to completely uninstall the driver.
- When it restarts, open DDU again > Select the Audio Device Type > Select Realtek (Or Soundblaster if the Audio Driver is not from Realtek) > Click on "Clean and Restart".
- After restarting, exit Safe Mode. Press the CTRL + R shortcut > Type ''msconfig'' (without quotes) > Click on the ''General'' tab, check the ''Normal Startup'' option > Click ''OK''.
- When restarting the computer, install the video and audio driver > Choose the "Express Installation" or "Recommended Installation" option during the installation screen > Restart the computer after completing the installation.
NOTE: Your computer screen may flash a few times. Don't worry, this is normal.
- See if the problem persists.