Here are a few suggestions to help you troubleshoot the issue:
Update your BIOS/UEFI firmware: Visit the Asus support website for your laptop model and ensure that you have the latest BIOS or UEFI firmware installed. Sometimes, firmware updates include bug fixes and improvements that can resolve compatibility issues with operating systems like Ubuntu.
Disable Fast Startup in Windows: Fast Startup is a feature in Windows that can cause conflicts when dual-booting with Ubuntu. To disable it, open the Power Options in Windows, click on "Choose what the power buttons do" or "Choose what the power button does" from the left menu, then click on "Change settings that are currently unavailable." Uncheck the "Turn on fast startup" option if it is enabled.
Try a different Ubuntu version: Sometimes, certain versions of Ubuntu may have compatibility issues with specific hardware configurations. Try using a different version of Ubuntu, such as the latest LTS (Long-Term Support) release or a more recent version, to see if the issue persists.
Check for specific hardware compatibility: Some newer hardware components might require additional drivers or settings to work properly with Ubuntu. Visit the Ubuntu Hardware Compatibility List (HCL) and forums specific to your hardware components to see if there are any known issues or workarounds.
Test with a different display: Connect an external monitor or TV to your laptop and try installing Ubuntu again. This can help determine if the issue is related to the laptop's display or graphics configuration.
Verify the integrity of the Ubuntu installation media: Ensure that the Ubuntu installation USB or DVD is created correctly and doesn't have any errors. You can verify its integrity by comparing the checksum of the downloaded ISO file with the official checksum provided by the Ubuntu website. Also, try using a different USB port or a different USB drive if available.
Consult the Ubuntu community: If none of the above steps resolve the issue, consider seeking assistance from the Ubuntu community forums or support channels. They can provide more specific guidance and help troubleshoot the problem based on your laptop model and installation details.
I hope these suggestions help you in successfully installing Ubuntu alongside Windows 10 on your Asus ZenBook Pro 14 UX480. Good luck with your installation!