After blacklisting the amdgpu module via echo "blacklist amdgpu" >
/etc/modprobe.d/blacklist-amdgpu.conf && update-initramfs -u; the system
will let me boot all the way up with more than one RX580 installed
(currently two are installed). Running modprobe amdgpu after the system
was already booted cause a kernel panic, which I have captured and
attached a screenshot of below.
root@r920-cmwhv52:~# lspci | grep AMD
22:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] (rev e7)
22:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere HDMI
Audio [Radeon RX 470/480 / 570/580/590]
61:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] (rev e7)
61:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere HDMI
Audio [Radeon RX 470/480 / 570/580/590]
root@r920-cmwhv52:~# lspci -vs 22:00
22:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] (rev e7) (prog-if 00 [VGA
controller])
Subsystem: Micro-Star International Co., Ltd. [MSI] Radeon RX 580
Flags: fast devsel, IRQ 15, NUMA node 1
Memory at 3c000000000 (64-bit, prefetchable) [disabled] [size=256M]
Memory at 3c010000000 (64-bit, prefetchable) [disabled] [size=2M]
I/O ports at 4000 [disabled] [size=256]
Memory at afe80000 (32-bit, non-prefetchable) [disabled] [size=256K]
Expansion ROM at afec0000 [disabled] [size=128K]
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010
<?>
Capabilities: [150] Advanced Error Reporting
Capabilities: [200] Resizable BAR <?>
Capabilities: [270] Secondary PCI Express
Capabilities: [2b0] Address Translation Service (ATS)
Capabilities: [2c0] Page Request Interface (PRI)
Capabilities: [2d0] Process Address Space ID (PASID)
Capabilities: [320] Latency Tolerance Reporting
Capabilities: [328] Alternative Routing-ID Interpretation (ARI)
Capabilities: [370] L1 PM Substates
lspci: Unable to load libkmod resources: error -12
22:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere HDMI
Audio [Radeon RX 470/480 / 570/580/590]
Subsystem: Micro-Star International Co., Ltd. [MSI] Ellesmere HDMI
Audio [Radeon RX 470/480 / 570/580/590]
Flags: bus master, fast devsel, latency 0, IRQ 379, NUMA node 1
Memory at afefc000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010
<?>
Capabilities: [150] Advanced Error Reporting
Capabilities: [328] Alternative Routing-ID Interpretation (ARI)
Kernel driver in use: snd_hda_intel
root@r920-cmwhv52:~# lspci -vs 61:00
61:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] (rev e7) (prog-if 00 [VGA
controller])
Subsystem: Micro-Star International Co., Ltd. [MSI] Radeon RX 580
Flags: fast devsel, IRQ 15, NUMA node 3
Memory at 33ff0000000 (64-bit, prefetchable) [disabled] [size=256M]
Memory at 33fefe00000 (64-bit, prefetchable) [disabled] [size=2M]
I/O ports at 6000 [disabled] [size=256]
Memory at a7e80000 (32-bit, non-prefetchable) [disabled] [size=256K]
Expansion ROM at a7ec0000 [disabled] [size=128K]
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010
<?>
Capabilities: [150] Advanced Error Reporting
Capabilities: [200] Resizable BAR <?>
Capabilities: [270] Secondary PCI Express
Capabilities: [2b0] Address Translation Service (ATS)
Capabilities: [2c0] Page Request Interface (PRI)
Capabilities: [2d0] Process Address Space ID (PASID)
Capabilities: [320] Latency Tolerance Reporting
Capabilities: [328] Alternative Routing-ID Interpretation (ARI)
Capabilities: [370] L1 PM Substates
lspci: Unable to load libkmod resources: error -12
61:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere HDMI
Audio [Radeon RX 470/480 / 570/580/590]
Subsystem: Micro-Star International Co., Ltd. [MSI] Ellesmere HDMI
Audio [Radeon RX 470/480 / 570/580/590]
Flags: bus master, fast devsel, latency 0, IRQ 381, NUMA node 3
Memory at a7efc000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010
<?>
Capabilities: [150] Advanced Error Reporting
Capabilities: [328] Alternative Routing-ID Interpretation (ARI)
Kernel driver in use: snd_hda_intel
** Attachment added: "rpviewer-31.png"
https://bugs.launchpad.net/ubuntu/+source/linux-5.4/+bug/1867455/+attachment/5336952/+files/rpviewer-31.png
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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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