The following log entry is from a GTXE2 Video PHY Controller using QPLL and CPLL to clock RX and TX, respectively. The log shows a typical flow for a video format change.
VPHY log
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RX frequency event
RX timer event
RX DRU disable
QPLL reconfig done
GT RX reconfig start
GT RX reconfig done
QPLL lock
RX reset done
RX MMCM reconfig done
TX frequency event
CPLL lost lock
TX frequency event
TX timer event
TX MMCM reconfig done
CPLL reconfig done
GT TX reconfig start
GT TX reconfig done
CPLL lock
TX MMCM lock
TX reset done
TX alignment done