AMD Lexa PRO graphic card can't work

[LIAO, YU-SIANG]

[Summary]

When I racked the one dell device, and do the trail run, I found that the checkbox process is stuck when it got the graphic information. I want to debug with the monitor, plug the DP cable to AMD card. After doing the power cycle, it entered to the BIOS, observe through the screen that the kernel has been started, but it immediately turned into a black screen. Fortunately, it can ssh-able, it can work normally by using the onboard graphic card.

After checking, AMD graphic card is broken after upgrading to 5.15.0-89-generic, it still have same issue in "5.15.0-91-generic" kernel version, but everything is good in the "5.15.0-88-generic" kernel version.

[Information]

Problematic DUT CID: 202101-28622
Platform name: Caribou
Launchpad Tag: fossa-cubone-rkl
Project name: Optiplex 5090
Used GM image: dell-bto-focal-fossa-release-X120-20210625-7_fossa-cubone-rkl_A02.iso
GPU: Advanced Micro Devices, Inc. [AMD/ATI] Lexa PRO [Radeon 540/540X/550/550X / RX 540X/550/550X] [1002:699f]

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.15.0-91-generic 5.15.0-91.101~20.04.1
ProcVersionSignature: Ubuntu 5.15.0-91.101~20.04.1-generic 5.15.131
Uname: Linux 5.15.0-91-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.27
Architecture: amd64
CasperMD5CheckResult: skip
Date: Fri Dec 1 14:39:55 2023
DistributionChannelDescriptor:
 # This is the distribution channel descriptor for the OEM CDs
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-focal-amd64-20200502-85+fossa-release+X120
InstallationDate: Installed on 2023-11-30 (0 days ago)
InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary 20200502-05:58
SourcePackage: linux-signed-hwe-5.15
UpgradeStatus: No upgrade log present (probably fresh install)

[Mario Limonciello (superm1)]

try amdgpu.aspm=0. If this helps it's because of missing stable backport patches.

[LIAO, YU-SIANG (flyjerry0415)]

@superm1 Thank for your reply. The method can make AMD graphic card work!

[Kai-Heng Feng (kaihengfeng)]

Mario,

Do you know the sha1 of missing patches?

[Mario Limonciello (superm1)]

It's probably a duplicate of the same patches missing for bug 2036742.

https://github.com/torvalds/linux/commit/64ffd2f1d00c6235dabe9704bbb0d9ce3e28147f

[Mario Limonciello (superm1)]

That was already CC to stable, so I suggest checking the latest 5.15.y. If that's still not working, you probably need https://github.com/torvalds/linux/commit/2757a848cb0f184850d3e0a33b4a69e8014fdc5d backported too.

[Kai-Heng Feng (kaihengfeng)]

5.15.141 indeed doesn't have this issue.

[Kai-Heng Feng (kaihengfeng)]

Will be fixed by later stable updates. For 5.15 it's included since v5.15.138.