Asrock 5700 XT Taichi fails to boot/hangs when a fifth monitor is connected

Submitted by eri..@..il.com

Assigned to Default DRI bug account

Link to original bug (#112103)

Description

Created attachment 145796
Screenshot of error on boot

Linux Kernel: 5.3.2-050302-generic
Mesa: OpenGL version string: 4.5 (Compatibility Profile) Mesa 19.3.0-devel (git-a9a9249 2019-10-21 bionic-oibaf-ppa)

Monitors:
BenQ XL2420TX (on DP)
BenQ XL2420T (on DP) (Two monitors)
LG 34UM61-P (on HDMI-1)
Sony SDM-HX73 (on HDMI-2 connected to DVI)

Attached image has the output when booted clean with all five monitors attached.

Attachment 145796, "Screenshot of error on boot":