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[kernel 5.4-rc4][amdgpu][CIK]: [drm] dce110_link_encoder_construct: Failed to get encoder_cap_info from VBIOS with error code 4!

Submitted by ernsteiswuerfel @ernsteiswuerfel

Assigned to Default DRI bug account

Link to original bug (#112138)

Description

Created attachment 145821
dmesg (kernel 5.4-rc4)

My card (Radeon R9 290 Tri-X) tells me 3 times it fails to get get encoder_cap_info from VBIOS with error code 4.

[...]
[ 6.084919] [drm] amdgpu kernel modesetting enabled.
[ 6.086395] CRAT table not found
[ 6.086493] Virtual CRAT table created for CPU
[ 6.086560] Parsing CRAT table with 2 nodes
[ 6.086755] Creating topology SYSFS entries
[ 6.088841] Topology: Add CPU node
[ 6.088952] Finished initializing topology
[ 6.090354] amdgpu 0000:01:00.0: remove_conflicting_pci_framebuffers: bar 0: 0xd0000000 -> 0xdfffffff
[ 6.090480] amdgpu 0000:01:00.0: remove_conflicting_pci_framebuffers: bar 2: 0xcf800000 -> 0xcfffffff
[ 6.090601] amdgpu 0000:01:00.0: remove_conflicting_pci_framebuffers: bar 5: 0xfe980000 -> 0xfe9bffff
[ 6.102438] [drm] initializing kernel modesetting (HAWAII 0x1002:0x67B0 0x174B:0xE285 0x00).
[ 6.102810] [drm] register mmio base: 0xFE980000
[ 6.102906] [drm] register mmio size: 262144
[ 6.103008] [drm] PCIE atomic ops is not supported
[ 6.103115] [drm] add ip block number 0 <cik_common>
[ 6.103211] [drm] add ip block number 1 <gmc_v7_0>
[ 6.103312] [drm] add ip block number 2 <cik_ih>
[ 6.103402] [drm] add ip block number 3 <gfx_v7_0>
[ 6.103497] [drm] add ip block number 4 <cik_sdma>
[ 6.103604] [drm] add ip block number 5 <powerplay>
[ 6.103705] [drm] add ip block number 6 <dm>
[ 6.103812] [drm] add ip block number 7 <uvd_v4_2>
[ 6.103912] [drm] add ip block number 8 <vce_v2_0>
[ 6.104297] resource sanity check: requesting [mem 0x000c0000-0x000dffff], which spans more than PCI Bus 0000:00 [mem 0x000d0000-0x000dffff window]
[ 6.104497] caller pci_map_rom+0x65/0x180 mapping multiple BARs
[ 6.106500] ATOM BIOS: 113-C6710100-O05
[ 6.108480] [drm] vm size is 128 GB, 2 levels, block size is 10-bit, fragment size is 9-bit
[ 6.114123] e1000e 0000:02:00.0 enp2s0: renamed from eth0
[ 6.121192] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001, bcdDevice= 5.04
[ 6.121329] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 6.121454] usb usb3: Product: OHCI PCI host controller
[ 6.121559] usb usb3: Manufacturer: Linux 5.4.0-rc4 ohci_hcd
[ 6.121667] usb usb3: SerialNumber: 0000:00:12.0
[ 6.125828] hub 3-0:1.0: USB hub found
[ 6.126006] hub 3-0:1.0: 3 ports detected
[ 6.136409] ohci-pci 0000:00:12.1: OHCI PCI host controller
[ 6.136686] ohci-pci 0000:00:12.1: new USB bus registered, assigned bus number 4
[ 6.137314] ohci-pci 0000:00:12.1: irq 16, io mem 0xfe8fe000
[ 6.139369] amdgpu 0000:01:00.0: VRAM: 4096M 0x000000F400000000 - 0x000000F4FFFFFFFF (4096M used)
[ 6.139505] amdgpu 0000:01:00.0: GART: 1024M 0x000000FF00000000 - 0x000000FF3FFFFFFF
[ 6.139651] [drm] Detected VRAM RAM=4096M, BAR=256M
[ 6.139747] [drm] RAM width 512bits GDDR5
[ 6.143904] [TTM] Zone kernel: Available graphics memory: 16436068 KiB
[ 6.144093] [TTM] Zone dma32: Available graphics memory: 2097152 KiB
[ 6.144194] [TTM] Initializing pool allocator
[ 6.144667] [TTM] Initializing DMA pool allocator
[ 6.146087] [drm] amdgpu: 4096M of VRAM memory ready
[ 6.146348] [drm] amdgpu: 4096M of GTT memory ready.
[ 6.147358] [drm] GART: num cpu pages 262144, num gpu pages 262144
[ 6.148692] [drm] PCIE GART of 1024M enabled (table at 0x000000F400900000).
[ 6.181882] amdgpu: [powerplay] hwmgr_sw_init smu backed is ci_smu
[ 6.187238] [drm] Found UVD firmware Version: 1.64 Family ID: 9
[ 6.190278] [drm] Found VCE firmware Version: 50.10 Binary ID: 2
[ 6.201941] usb usb4: New USB device found, idVendor=1d6b, idProduct=0001, bcdDevice= 5.04
[ 6.202059] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 6.202165] usb usb4: Product: OHCI PCI host controller
[ 6.202318] usb usb4: Manufacturer: Linux 5.4.0-rc4 ohci_hcd
[ 6.202411] usb usb4: SerialNumber: 0000:00:12.1
[ 6.204076] [drm] PCIE gen 2 link speeds already enabled
[ 6.205321] hub 4-0:1.0: USB hub found
[ 6.205841] hub 4-0:1.0: 3 ports detected
[ 6.294583] ohci-pci 0000:00:13.0: OHCI PCI host controller
[ 6.294691] ohci-pci 0000:00:13.0: new USB bus registered, assigned bus number 5
[ 6.295006] ohci-pci 0000:00:13.0: irq 18, io mem 0xfe8f7000
[ 6.316082] [drm] dce110_link_encoder_construct: Failed to get encoder_cap_info from VBIOS with error code 4!
[ 6.316555] [drm] dce110_link_encoder_construct: Failed to get encoder_cap_info from VBIOS with error code 4!
[ 6.317065] [drm] dce110_link_encoder_construct: Failed to get encoder_cap_info from VBIOS with error code 4!
[ 6.317673] [drm] Display Core initialized with v3.2.48!
[...]

Attachment 145821, "dmesg (kernel 5.4-rc4)":
dmesg_54-rc4.txt