Public bug reported:
I have a Dell R920 with three MSI Radeon RX 580 8G V1 cards, if more
than one of these cards is installed in the system, a bus fatal error
will be generated causing the system to reset itself when the amdgpu
module is loaded and it tries to initialize the device.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-modules-5.4.0-14-lowlatency 5.4.0-14.17
ProcVersionSignature: Ubuntu 5.4.0-14.17-lowlatency 5.4.18
Uname: Linux 5.4.0-14-lowlatency x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu20
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path',
'/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D9p',
'/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
Date: Sat Mar 14 12:20:47 2020
Dependencies:
MachineType: Dell Inc. PowerEdge R920
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 mgag200drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-14-lowlatency
root=ZFS=rpool/ROOT/ubuntu ro intel_iommu=on iommu=pt
root=ZFS=rpool/ROOT/ubuntu intremap=no_x2apic_optout ipv6.disable=1
mitigations=off
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-5.4.0-14-lowlatency N/A
linux-backports-modules-5.4.0-14-lowlatency N/A
linux-firmware 1.186
RfKill:
SourcePackage: linux-5.4
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/26/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.9.0
dmi.board.name: 0V7HD0
dmi.board.vendor: Dell Inc.
dmi.board.version: A06
dmi.chassis.type: 23
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.9.0:bd06/26/2019:svnDellInc.:pnPowerEdgeR920:pvr:rvnDellInc.:rn0V7HD0:rvrA06:cvnDellInc.:ct23:cvr:
dmi.product.name: PowerEdge R920
dmi.sys.vendor: Dell Inc.
** Affects: linux-5.4 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1867455
Title:
Having more than one AMD Radeon RX 580 installed will trigger a PCIe
bus fatal error during boot.
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