Display & MIPI Test Solutions

Display technology development involves complex handshaking and configuration protocols that must work correctly before any image appears on screen. The DisplayPort AUX channel carries link training sequences, EDID reads, DPCD register accesses, and content protection exchanges that are essential to establishing and maintaining a display connection. MIPI-based display interfaces add their own configuration and data protocols for mobile and embedded displays. Engineers working on display products face challenges at the protocol level that are invisible to standard oscilloscopes. Link training failures, EDID read errors, DPCD register misconfigurations, and HDCP handshake issues all manifest as blank screens or intermittent display glitches, but the root cause is buried in the AUX channel transaction sequence. Debugging these issues requires an instrument that can capture and decode the AUX channel traffic to show exactly which transaction failed and why. Acute instruments provide the protocol-level visibility needed for display debug. The TravelLogic and LA4000 series logic analyzers with the DP AUX decoder display link training sequences, DPCD register reads and writes, and EDID transactions in decoded form. The BusFinder dedicated protocol analyzer offers deep capture memory for recording extended display connection sequences, including hot-plug events and link re-training. With high timing resolution and multi-channel capability, you can capture AUX channel traffic alongside other system signals to understand how display initialization interacts with the rest of your platform.