NON-COMPLIANT HDMI PRODUCTS: INADEQUATE SUPPORT FOR 480P VIDEO TRANSMISSION

HDMI Licensing, LLC has recently identified several source products in the marketplace that do not adequately support specific video resolutions per the HDMI Specification. The compliance issue is reliable, continuous 480p video transmission, as per the HDMI Specification. HDMI Licensing, LLC has learned that these devices transmit an OSD (On Screen Display) message to the user in 480p resolution communicating to the customer 1) that 480p resolution is not supported, or 2) that customers switch their sink device to a resolution higher than 480p.

It is each and every HDMI Adopter’s obligation to build products that comply with the HDMI Specification, pass the HDMI Compliance Test Specification, and interoperate with other Fully Compliant HDMI-enabled devices available in the market. The devices in question may be able to transmit an OSD message in the minimum video resolution designated in the Specification, the HDMI Specification inherently requires that all sources be capable of transmitting all video content at a minimum of 480p.

Transmitting only an OSD in 480p and other video content at higher resolutions undermines the intent of the HDMI Specification and the obligation of HDMI Adopters to ensure that all Fully Compliant HDMI-enabled products interoperate at a minimum level. We are sending this information to bring the issue described above to your attention.

If you have questions or concerns, please email admin@hdmi.org.

HDMI Licensing, LLC