Public bug reported:
Rear USB4/USB-C port (native, 20Gbps-capable) on a Minisforum M1-1390 mini PC
intermittently fails to enumerate an attached USB 3.2 Gen2 storage enclosure.
Kernel log shows the BIOS's ACPI tables define the HS14 USB port object
twice:
ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20251212/psobject-220)
ACPI BIOS Error (bug): Failure creating named object
[\_SB.PC00.XHCI.RHUB.HS14._UPC], AE_ALREADY_EXISTS (20251212/dswload2-326)
ACPI BIOS Error (bug): Failure creating named object
[\_SB.PC00.XHCI.RHUB.HS14._PLD], AE_ALREADY_EXISTS (20251212/dswload2-326)
ACPI BIOS Error (bug): Failure creating named object [\GUPC], AE_ALREADY_EXISTS
ACPI BIOS Error (bug): Failure creating named object [\GPLD], AE_ALREADY_EXISTS
Observed behavior:
- Cold boot with a USB device attached to this port: system fails to boot/hangs.
- Hot-attach after boot: has caused system unresponsiveness during sustained
I/O, with repeated USB reset cycles (~every 30s) and subsequent I/O errors
on the attached drives.
- Most recently: cold boot with the device attached resulted in the port's
hub enumerating but zero downstream devices appearing (confirmed via
`lsusb -t`), consistent with the ACPI object failure preventing the kernel
from correctly building that port's device tree.
This is very likely a vendor BIOS/ACPI table defect (duplicate object
definition), not a kernel bug — filing here in case a DMI-based quirk/
workaround is appropriate in the interim, as has been done for similar
vendor ACPI errors on other OEM boards in the past.
Hardware: Minisforum M1-1390 (Intel Core i9-13900HX)
Board: RPFXC (OEM: Meigao Innovation Technology, Shen Zhen)
BIOS: RPFXC011, 06/10/2026
Full apport report attached.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-30-generic 7.0.0-30.30
ProcVersionSignature: Ubuntu 7.0.0-30.30-generic 7.0.12
Uname: Linux 7.0.0-30-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: chipper 2779 F.... wireplumber
/dev/snd/seq: chipper 2749 F.... pipewire
CasperMD5CheckResult: pass
Date: Wed Sep 2 17:29:18 2026
InstallationDate: Installed on 2026-08-30 (3 days ago)
InstallationMedia: Ubuntu 26.04.1 LTS "Resolute Raccoon" - Release amd64
(20260826)
MachineType: Micro Computer (HK) Tech Limited EliteMini Series
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-30-generic
root=UUID=7b6011ac-6355-42c8-acc3-e1f37229e5eb ro pcie_port_pm=off
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
RfKill:
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/10/2026
dmi.bios.release: 5.27
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: RPFXC011
dmi.board.asset.tag: Default string
dmi.board.name: RPFXC
dmi.board.vendor: Meigao Innovation Technology (Shen Zhen) Co., Ltd
dmi.board.version: VB1
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvrRPFXC011:bd06/10/2026:br5.27:svnMicroComputer(HK)TechLimited:pnEliteMiniSeries:pvrDefaultstring:rvnMeigaoInnovationTechnology(ShenZhen)Co.,Ltd:rnRPFXC:rvrVB1:cvnDefaultstring:ct3:cvrDefaultstring:skuMGRPFXC:pfaEliteMini:
dmi.product.family: EliteMini
dmi.product.name: EliteMini Series
dmi.product.sku: MGRPFXC
dmi.product.version: Default string
dmi.sys.vendor: Micro Computer (HK) Tech Limited
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute
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https://bugs.launchpad.net/bugs/2166232
Title:
ACPI BIOS Error: duplicate XHCI RHUB HS14 object causes intermittent
USB port enumeration failure (Minisforum M1-1390 / RPFXC board)
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