--- drivers/video/msm/mdp4_util.c

+++ drivers/video/msm/mdp4_util.c

@@ -636,6 +636,7 @@ irqreturn_t mdp4_isr(int irq, void *ptr)

if (isr & INTR_PRIMARY_INTF_UDERRUN) {

pr_info("%s: UNDERRUN -- primary\n", __func__);

mdp4_stat.intr_underrun_p++;

+ dump_underrun_pipe_info();

/* When underun occurs mdp clear the histogram registers

that are set before in hw_init so restore them back so

that histogram works.*/