ASUS ROG Zephyrus G14 GA403: HDMI Audio Not Working Fix
AMD Ryzen AI 9 HX 370 • AMD RDNA 3.5 iGPU • Windows 11
The ASUS ROG Zephyrus G14 GA403 uses the AMD Ryzen AI 9 HX 370 with AMD Radeon 890M integrated graphics. When connected via HDMI to a monitor or TV, HDMI audio not playing through the external device is a common issue caused by incorrect default audio output device selection, driver issues, or HDMI handshake problems between the AMD GPU and the display.
Set HDMI Audio as Default Output
Right-click the speaker icon in the taskbar > Sound settings. Under Output, select HDMI (AMD High Definition Audio Device). Windows does not automatically switch audio output when HDMI is connected — you must manually select the HDMI output device. This is the primary fix for the majority of HDMI audio cases on the Zephyrus G14 GA403.
Enable HDMI Audio in Sound Control Panel
Right-click the speaker icon > Sound settings > More sound settings. In the Playback tab, right-click an empty area and select Show disabled devices and Show disconnected devices. If the HDMI audio device appears grayed out, right-click it and choose Enable. Then right-click again and select Set as Default Device.
Update AMD High Definition Audio Driver
The AMD HDMI audio driver is bundled with the AMD Radeon Graphics driver package. Visit ASUS Support, download the latest AMD graphics driver for the ROG Zephyrus G14 GA403, and install it. This updates both the display driver and the AMD High Definition Audio component for HDMI audio output.
Check HDMI Cable and TV/Monitor Input
Ensure the HDMI cable is a Standard or High Speed HDMI (not a power-only cable) and is fully seated. On the TV or monitor, confirm the audio is not muted and the correct HDMI input is selected. Some displays require their audio to be set to the HDMI input channel to receive audio from the connected laptop.
Reconnect the HDMI Cable
Unplug the HDMI cable from the Zephyrus G14 GA403 and the display, wait 10 seconds, and reconnect. This forces a new HDMI handshake (EDID negotiation) that re-reads the display audio capabilities. After reconnecting, check Sound settings again for the HDMI audio output device.
Check ROG Armoury Crate Audio Routing
Open ROG Armoury Crate > Scenario Profile. Some scenario profiles on the Zephyrus G14 GA403 include audio routing presets that override the default Windows audio device. If a profile forces audio to internal speakers, HDMI audio remains silent. Disable the audio routing override in the active scenario profile or switch to the default profile.
“My ROG G14 GA403 showed no HDMI audio when connected to my TV. The AMD HDMI audio device was disabled in the Sound Control Panel — enabling it and setting it as default fixed audio on TV within one minute.”
— Muhaimin Zakaria, content creator
Frequently Asked Questions
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.
Why is there no audio over HDMI on the ASUS ROG Zephyrus G14 GA403?
HDMI audio on the Zephyrus G14 GA403 requires manually selecting the AMD High Definition Audio HDMI output as the default playback device in Sound settings. Windows does not auto-switch audio output when HDMI is connected. Also check Sound Control Panel for the HDMI audio device being disabled, and ensure the AMD graphics driver is up to date from ASUS Support.
Does the ASUS ROG Zephyrus G14 GA403 have HDMI output?
Yes. The ROG Zephyrus G14 GA403 includes an HDMI 2.1 port supporting up to 4K at 120Hz output. The HDMI port connects directly to the AMD Radeon 890M integrated GPU, which handles both video and audio transmission over HDMI. The discrete GPU output (if configured) routes through the iGPU on this model.
Can I use HDMI and speakers at the same time on the Zephyrus G14 GA403?
Windows allows only one default audio output at a time for system audio. To use both HDMI audio and internal speakers simultaneously, you would need third-party audio routing software. Typically users switch the default output device between internal speakers and HDMI depending on whether the HDMI display is connected.
What AMD GPU does the ASUS ROG Zephyrus G14 GA403 have?
The ASUS ROG Zephyrus G14 GA403 features the AMD Radeon RX 7700S discrete GPU combined with the AMD Radeon 890M integrated GPU from the Ryzen AI 9 HX 370. The Radeon 890M iGPU handles HDMI output on this model. The RX 7700S provides discrete GPU performance for gaming and creative workloads.
Leave a Reply