2nd GPU (RTX 3070) not Working in Ubuntu 20.04

Graphics / Linux Linux
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1

I have 2x RTX3070 installed, both work in windows. In linux both graphics cards are showing up under ‘lspci | grep VGA’, but not under ‘nvidia-smi’.

I have attempted reinstalling Drivers, OS and enabling multigpu, basemosaic also running an empty Xorg.conf file to no avail.

1 Like
2

Please run nvidia-bug-report.sh as root and attach the resulting nvidia-bug-report.log.gz file to your post.

3

nvidia-bug-report.log.gz (308.3 KB)

Please find the bug report attached

4

Please try setting the kernel parameter
pci=realloc
or set “above 4G decoding” in bios.

5

[ 0.310997] pnp 00:03: disabling [io 0x002e-0x002f] because it overlaps 0000:02:00.0 BAR 5 [io 0x0000-0x007f]
[ 0.310998] pnp 00:03: disabling [io 0x004e-0x004f] because it overlaps 0000:02:00.0 BAR 5 [io 0x0000-0x007f]
[ 0.310999] pnp 00:03: disabling [io 0x0061] because it overlaps 0000:02:00.0 BAR 5 [io 0x0000-0x007f]
[ 0.311000] pnp 00:03: disabling [io 0x0063] because it overlaps 0000:02:00.0 BAR 5 [io 0x0000-0x007f]
[ 0.311000] pnp 00:03: disabling [io 0x0065] because it overlaps 0000:02:00.0 BAR 5 [io 0x0000-0x007f]
[ 0.311001] pnp 00:03: disabling [io 0x0067] because it overlaps 0000:02:00.0 BAR 5 [io 0x0000-0x007f]
[ 0.311002] pnp 00:03: disabling [io 0x0070] because it overlaps 0000:02:00.0 BAR 5 [io 0x0000-0x007f]

[ 0.318899] pci 0000:02:00.0: BAR 1: assigned [mem 0x4010000000-0x401fffffff 64bit pref]
[ 0.318911] pci 0000:02:00.0: BAR 3: assigned [mem 0x4008000000-0x4009ffffff 64bit pref]
[ 0.318918] pci 0000:02:00.0: BAR 0: no space for [mem size 0x01000000]
[ 0.318919] pci 0000:02:00.0: BAR 0: failed to assign [mem size 0x01000000]
[ 0.318920] pci 0000:02:00.0: BAR 6: assigned [mem 0xc4280000-0xc42fffff pref]
[ 0.318921] pci 0000:02:00.0: BAR 5: assigned [io 0x5000-0x507f]
[ 0.318923] pci 0000:00:1c.0: PCI bridge to [bus 02]
[ 0.318925] pci 0000:00:1c.0: bridge window [io 0x5000-0x5fff]
[ 0.318927] pci 0000:00:1c.0: bridge window [mem 0xc4200000-0xc42fffff]
[ 0.318929] pci 0000:00:1c.0: bridge window [mem 0x4008000000-0x401fffffff 64bit pref]
[ 0.318932] pci 0000:00:1d.0: PCI bridge to [bus 03]
[ 0.318935] pci 0000:00:1d.0: bridge window [mem 0xc4100000-0xc41fffff]
[ 0.318940] pci_bus 0000:00: Some PCI device resources are unassigned, try booting with pci=realloc

[ 2.862540] nvidia 0000:02:00.0: enabling device (0000 → 0003)
[ 2.862659] NVRM: request_mem_region failed for 0M @ 0x0. This can
NVRM: occur when a driver such as rivatv is loaded and claims
NVRM: ownership of the device’s registers.
[ 2.862662] nvidia: probe of 0000:02:00.0 failed with error -1
[ 2.862673] NVRM: The NVIDIA probe routine failed for 1 device(s).

[ 0.318940] pci_bus 0000:00: Some PCI device resources are unassigned, try booting with pci=realloc

Try booting with the kernel parameter: pci=realloc

Or maybe you have a “Above 4G Decoding” setting in bios?

Also the card is running at 4x PCIe link speed, that’s a bit low. Any setting in bios you can change that, or another pci slot available with higher speed? Check your motherboards documentation.

Edit: oops generix was faster. sorry for a mostly redundant reply.

6

Hey there,

I have a similar configuration and problem getting my second 3070 GPU working. In my case, neither LSPCI nor nvidia-smi detect a second card.

I have verified that both cards work individually and I have verified that both cards are operational (together) under Windows.

Here is my bug report attached.

If I should be opening a new conversation - apologies - please let me know as I am new to the site.

Thank you,

nvidia-bug-report.log.gz (299.1 KB)

7

There’s absolute no trace of a second nvidia gpu handed over to the kernel by the bios.
What’s the pci id it gets assigned to by Windows?
Please update bios.

1 Like
8

Thank you generix. Let me get back to you on this asap and get the bios updated.

9

Hey Generix,

In my first run report from the install, you can see the two GPUS .

Here is the initial report from the Ubuntu install:

“Arch”: “amd64”,
“GPU”: [
{
“Vendor”: “8086”,
“Model”: “9bc5”
},
{
“Vendor”: “10de”,
“Model”: “2484”
}
],
“RAM”: 16.2,
“Partitions”: [
959.9,
0.5
],

Very puzzled why I can’t get to show up now.

10

I have a similar problem but with RTX 3090. I have two, but ubuntu 20.04 detects only one. nvidia-bug-report.log.gz (756.2 KB)

11

I’m also facing similar issue with ubuntu 22.04.
I have internal GPU (NVIDIA GeForce GTX 1050) and an eGPU (NVIDIA GeForce GTX 3060)

though 3060 is not getting detected by nvidia-smi

12

nvidia-bug-report.log.gz (601.9 KB)

Adding bug-report