HDMI Tuning Guide
PRELIMINARY INFORMATION
Jetson AGX Orin Series Tuning and Compliance Guide
DA-11040-001_v0.7 | 35
Final Steps
This section details the final steps for HDMI tuning.
Sanity Check
After tuning is completed, the settings should be sanity-checked to make sure they do not
violate any other parts of the HDMI specifications, and there is enough margin.
The DUT should go through the full set of electrical tests outlined in the
HDMI Compliance
Test Specifications
(CTS) document to ensure that the DUT can pass HDMI certification.
If there are any failures, the settings must be tuned again until there is a passing result.
Note
: Higher power consumption is expected if the new settings are stronger than the default
settings. Stronger settings are required due to, but not limited to, longer traces, EMI chokes on
the signal paths, or signal integrity issues.
Updating the Software
After the tuned settings have been verified, they must be updated into the OS or the driver.
Contact the appropriate software team, or your NVIDIA representative to update new tuned
settings.
The 480p settings apply to pixel clock resolutions ≤ 54 MHz
The 720p settings apply to pixel clock resolutions between > 54 MHz to ≤ 111 MHz
The 1080p settings apply to pixel clock resolutions between > 111 MHz to ≤ 223 MHz
The 2160p/30 settings apply to pixel clock resolutions between > 223 MHz to ≤ 300 MHz
The 2160p/60 settings apply to pixel clock resolutions between > 301 MHz to ≤ 600 MHz
Note
: Ranges can be adjusted according to design and use-cases. More ranges can also be
defined if proper tuning and software implementation is performed.
Final Check
After the settings have been updated in the driver, you must verify that the new tuned settings
are really applied to each of the target resolutions.
A visual checkout is recommended as well. Connect the DUT to an HDMI panel and visually
check that there is no corruption at any of the supported HDMI resolutions.
