[WHL] [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe B FIFO underrun
Submitted by Sushma
Assigned to Intel GFX Bugs mailing list
Created attachment 145408
dmesg for FIFO underruns in PIPE B
The issue is reproducible on Chrome OS WHL device when we connect a 4K external monitor to DUT. I was able to reproduce quite often using LG model 27UD88-W.
Attaching the log where I could reproduce the issue even on drm-tip.
Attachment 145408, "dmesg for FIFO underruns in PIPE B":