Navi10 GPU boot bug: Failed to pin framebuffer with error -12

Submitted by Timur Kristóf

Assigned to Default DRI bug account

Link to original bug (#111750)

Description

On bootup, I get the following messages from amdgpu:

[ 3.554976] amdgpu 0000:2b:00.0: 0000000037dcd558 pin failed
[ 3.555024] [drm:dm_plane_helper_prepare_fb [amdgpu]] ERROR Failed to pin framebuffer with error -12
[ 3.565298] amdgpu 0000:2b:00.0: 0000000037dcd558 pin failed
[ 3.565349] [drm:dm_plane_helper_prepare_fb [amdgpu]] ERROR Failed to pin framebuffer with error -12
[ 3.681423] amdgpu 0000:2b:00.0: 0000000037dcd558 pin failed
[ 3.681474] [drm:dm_plane_helper_prepare_fb [amdgpu]] ERROR Failed to pin framebuffer with error -12
[ 3.686750] amdgpu 0000:2b:00.0: 0000000037dcd558 pin failed
[ 3.686800] [drm:dm_plane_helper_prepare_fb [amdgpu]] ERROR Failed to pin framebuffer with error -12
[ 3.781617] amdgpu 0000:2b:00.0: 0000000037dcd558 pin failed
[ 3.781667] [drm:dm_plane_helper_prepare_fb [amdgpu]] ERROR Failed to pin framebuffer with error -12
[ 3.880152] amdgpu 0000:2b:00.0: 0000000037dcd558 pin failed
[ 3.880262] [drm:dm_plane_helper_prepare_fb [amdgpu]] ERROR Failed to pin framebuffer with error -12

Hardware:
AMD Radeon RX 5700XT (reference card, made by Sapphire)
Dell U2718Q (two of them: one through HDMI, other through DisplayPort)
AMD Ryzen 7 3700X
MSI B450i

Software:
Fedora Workstation 30 x86_64
Kernel 5.3 RC8
Firmware: 2019-09-13
Gnome 3.32.2
LLVM 9 RC2
Mesa 19.2 RC1