Transmit – Misaligned Data - Transmit – Misaligned Data - 2.1 English - PG199

DisplayPort 1.2 TX Subsystem LogiCORE IP Product Guide (PG199)

Document ID
PG199
Release Date
2024-12-11
Version
2.1 English

This section contains debugging steps for issues with data appearing to be misaligned or shifted on the monitor.

  • Check the EDID timings to verify they are within the CVT standard RB and RB2 reduced blanking resolutions.
  • Using EDID timings outside of the CVT standard can cause timing issues.

To fix this, use void XDpTxSs_VtcAdjustBSTimingEnable(XDpTxSs*InstancePtr). This moves the BS symbol into the front porch to fix a swing in the BS timing caused by a non-standard CVT timing.