The external monitor connected to the HDMI port on your ASUS TUF Gaming F15 FX507 shows a black screen or No signal even though the laptop display works normally. The monitor may briefly flicker or show the start of a connection before going black. This is related to which GPU the HDMI port connects to in the current GPU mode.
This guide covers GPU mode switching, NVIDIA Control Panel HDMI settings, and driver updates to fix the HDMI black screen on the ASUS TUF Gaming F15 FX507 in Windows 11.
“HDMI on my TUF Gaming F15 FX507 showed black screen on my 4K monitor. Brief flicker then nothing. Switched to Discrete GPU mode in Armoury Crate and it worked immediately.” – Hafizuddin, PC gamer from Malacca

Why HDMI Shows Black Screen on TUF Gaming F15 FX507
The ASUS TUF Gaming F15 FX507 HDMI port is wired to the NVIDIA GPU at the PCB level, but in Hybrid (Optimus) mode, all display output routes through Intel integrated graphics via a multiplexer. The Intel GPU then outputs to HDMI. In some configurations, particularly at higher resolutions or after driver updates, the Optimus routing of HDMI through Intel graphics fails to initialize correctly, showing a black screen. Switching to Discrete GPU mode bypasses the Intel GPU multiplexer and connects HDMI directly to the NVIDIA GPU.
- Hybrid (Optimus) mode routing HDMI through Intel iGPU causing initialization failure
- HDMI resolution or refresh rate set higher than Intel iGPU can handle through Optimus bridge
- NVIDIA driver update changing Optimus HDMI output handling causing regression
- HDMI cable or monitor handshake timing issue in Optimus HDMI output path

Fix 1 – Switch to Discrete GPU Mode in Armoury Crate
Open Armoury Crate on the TUF Gaming F15 FX507. Go to System – GPU mode. Change from Hybrid to Discrete GPU mode. A restart is required. After restart, the HDMI port bypasses Intel integrated graphics and connects directly to the NVIDIA GPU, giving reliable HDMI output up to 4K 60Hz. This fix eliminates the Optimus HDMI routing that was causing the black screen.
Fix 2 – Set HDMI Monitor to NVIDIA GPU in NVIDIA Control Panel
If you prefer to stay in Hybrid mode, open NVIDIA Control Panel – Display – Set up multiple displays. Right-click on the HDMI monitor and select which GPU should drive it. If the option to select NVIDIA GPU for the HDMI monitor appears, select it. Not all Optimus configurations expose this option – if it is not available, Discrete GPU mode is the only way to route HDMI through NVIDIA.
Set External Resolution Manually
If the HDMI monitor receives a signal but shows black (backlight on but no image), the resolution or refresh rate may be beyond what the Intel GPU handles through Optimus at this moment. In NVIDIA Control Panel – Display – Change resolution, manually set the HDMI monitor to 1920×1080 at 60Hz. A lower resolution may initialize the connection, after which you can increase resolution in Display Settings.

Fix 3 – Update NVIDIA Driver from ASUS Support
Go to asus.com/support, search for TUF Gaming F15 FX507, and download the NVIDIA GeForce driver for Windows 11. ASUS-qualified NVIDIA drivers include TUF Gaming F15-specific HDMI Optimus routing fixes that may have been introduced in a previous driver update. Install with DDU clean remove in Safe Mode if the current driver is corrupted.
Fix 4 – Try a Different HDMI Cable
Test with a known-working HDMI cable from another device. HDMI cables with damaged connectors or marginal signal quality can pass a brief connection handshake before failing, producing the observed brief flicker then black screen. A direct connection test with a quality HDMI 2.0 cable rules out cable as a contributing factor before spending time on driver changes.
Frequently Asked Questions
Why is HDMI showing black screen on ASUS TUF Gaming F15 FX507?
Hybrid mode routes HDMI through Intel iGPU which has initialization issues at higher resolutions. Switch to Discrete GPU mode in Armoury Crate for reliable HDMI output via NVIDIA GPU.
How do I fix HDMI black screen on ASUS TUF Gaming F15 FX507?
Switch to Discrete GPU mode in Armoury Crate. Or update NVIDIA driver from ASUS Support. Or set HDMI to 1080p 60Hz in NVIDIA Control Panel as a workaround in Hybrid mode.
Does ASUS TUF Gaming F15 FX507 HDMI support 4K?
Yes – HDMI 2.0 supports 4K at 60Hz when in Discrete GPU mode. In Hybrid mode, 4K HDMI may fail to initialize on some driver versions.
Which GPU is connected to the HDMI port on ASUS TUF Gaming F15 FX507?
In Hybrid mode, HDMI routes through Intel iGPU via multiplexer. In Discrete GPU mode, HDMI connects directly to NVIDIA GPU.
Conclusion
HDMI black screen on ASUS TUF Gaming F15 FX507 in Windows 11 is resolved by switching to Discrete GPU mode in Armoury Crate, which routes HDMI directly through the NVIDIA GPU bypassing the Intel Optimus path. Updating the NVIDIA driver from ASUS Support and testing with a quality HDMI cable eliminates driver and cable causes. Setting the external display to 1080p 60Hz provides an immediate workaround in Hybrid mode if driver update is pending.
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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