Created attachment 145796 [details] 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.
I believe I have found the issue (although need to setup to compile to test). In https://github.com/torvalds/linux/blob/master/drivers/gpu/drm/amd/amdgpu/amdgpu.h, line 187: #define AMDGPUFB_CONN_LIMIT 4 I believe this should be set to 6 to support the Asrock 5700 XT Taichi, or any other card that is released with more than four ports.
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