Hrm. dcn_4_0_1_dmcub.bin was updated to commit
a26e413e7481d12ab5a53f77e0cdde2d5be937d8 and matches:
$ git diff --exit-code Ubuntu-amd-graphics-20240318.git3b128b60-0ubuntu3.4
a26e413e7481d12ab5a53f77e0cdde2d5be937d8 -- amdgpu/dcn_4_0_1_dmcub.bin && echo
MATCH
MATCH
Arguably that's not Resolute's version but more importantly that
upstream commit is bad:
$ git checkout a26e413e7481d12ab5a53f77e0cdde2d5be937d8
$ contrib/get_amdgpu_fw_version.py
dcn_4_0_1_dmcub.bin: DMCUB FW
ip_major = 3 (0x3)
ip_minor = 2 (0x2)
ucode_version = 117452544 (0x7002f00)
ucode_bytes = 284176 (0x45610)
crc32 = 3593716526 (0xd633c32e)
--------------------------------
Detailed uCode version:
major = 7 (0x7)
minor = 0 (0x0)
revision = 47 (0x2f)
is_test = 0 (0x0)
is_vbios = 0 (0x0)
hotfix = 0 (0x0)
There's a follow-on fix that we don't have :-(
$ git show cbbce56d6dcc1ec8fb485dfb92c68cb9acd51410
commit cbbce56d6dcc1ec8fb485dfb92c68cb9acd51410
Author: Fangzhi Zuo <[email protected]>
Date: Mon Jun 23 11:08:22 2025 -0400
amdgpu: update dmcub fw for dcn401
Fix the issue on a26e413e7481d12ab
Signed-off-by: Fangzhi Zuo <[email protected]>
diff --git a/amdgpu/dcn_4_0_1_dmcub.bin b/amdgpu/dcn_4_0_1_dmcub.bin
index 5dbdc73c6592..243f091f78ae 100644
Binary files a/amdgpu/dcn_4_0_1_dmcub.bin and b/amdgpu/dcn_4_0_1_dmcub.bin
differ
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https://bugs.launchpad.net/bugs/2173041
Title:
black screen after upgrading linux-firmware-amd-graphics to 0ubuntu3.4
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