Public bug reported:
I have a USB-C connector for Thunderbolt/USB3 on my laptop.
If I plug in an external USB3 drive nothing happens. (Nothing in dmesg
and it doesn't show up under removable Drives in Dolphin).
If I then type lspci then one of two things happens
a) the drive becomes visible to the system, and can be mounted, or
b) the lspci command takes a long time, and there is a kernel bug report
in dmesg (attached here)
Once the drive is visible it can be mounted and seems to work fine. But
if I then unmount it, unplug it and plug it back in again the kernel bug
reports seem to happen on every lspci run.
This system dual-boots MS Windows, and the port behaves OK there.
I also think that it was OK on Questing.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-15-generic 7.0.0-15.15
ProcVersionSignature: Ubuntu 7.0.0-15.15-generic 7.0.0
Uname: Linux 7.0.0-15-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: gml4410 2282 F.... pipewire
gml4410 2286 F.... wireplumber
/dev/snd/pcmC0D0p: gml4410 2282 F...m pipewire
/dev/snd/seq: gml4410 2282 F.... pipewire
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Tue May 5 19:55:15 2026
InstallationDate: Installed on 2026-04-26 (9 days ago)
InstallationMedia: Kubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423)
MachineType: PC Specialist LTD N150CU
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-15-generic
root=UUID=2394548e-aa9d-4521-b07d-12b7f18cedae ro quiet splash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/15/2019
dmi.bios.release: 7.7
dmi.bios.vendor: INSYDE Corp.
dmi.bios.version: 1.07.07TPCS2
dmi.board.asset.tag: Tag 12345
dmi.board.name: N151CU
dmi.board.vendor: CLEVO
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Notebook
dmi.chassis.version: N/A
dmi.ec.firmware.release: 7.7
dmi.modalias:
dmi:bvnINSYDECorp.:bvr1.07.07TPCS2:bd11/15/2019:br7.7:efr7.7:svnPCSpecialistLTD:pnN150CU:pvrNotApplicable:rvnCLEVO:rnN151CU:rvrNotApplicable:cvnNotebook:ct10:cvrN/A:skuNotApplicable:pfaNotApplicable:
dmi.product.family: Not Applicable
dmi.product.name: N150CU
dmi.product.sku: Not Applicable
dmi.product.version: Not Applicable
dmi.sys.vendor: PC Specialist LTD
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
** Attachment added: "dmesg output of kernep bug report"
https://bugs.launchpad.net/bugs/2151236/+attachment/5968220/+files/dmesg.out
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https://bugs.launchpad.net/bugs/2151236
Title:
Thunderbolt/USB3 port failing in Resolute
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