A: This phenomenon includes two cases: no sound in both ears, and no sound in one ear. Please troubleshoot in the following steps:

  1. Audio settings check: Go to the sound options in system settings or the Control Panel, check the volume level and whether it is muted, and confirm that the correct default playback device is selected.

  2. Physical connection check: Check whether the earphones or speakers are properly connected, whether the audio cable is firmly plugged in, and confirm that there is no looseness at the connection. Try unplugging and re-plugging the 2D temple arm assembly.

  3. GPU settings reset: Open the NVIDIA Control Panel, go to "Manage 3D Settings," and perform the "Restore Default Settings" operation.

  4. Clean driver installation: Go to the GPU manufacturer's official website to download the corresponding latest driver and perform a clean installation. In DP-channel audio scenarios, be sure to check the NVIDIA HD Audio driver during installation.

  5. AMD GPU clean installation reference: https://community.amd.com/t5/pc-building-how-to-articles/amd-clean-driver-install-uninstall/ta-p/693320

  6. NVIDIA GPU clean installation reference: https://www.nvidia.cn/drivers/

  7. Further handling: If the issue remains unresolved after completing all the above troubleshooting steps, please record the fault symptoms and the troubleshooting operations you have performed in detail, and contact a Pimax engineer for analysis.