USB devices not detected

[Thomas Schweikle]

In some cases the kernel does detect a newly connected USB device, but this device is never handled by systemd. The device handling shows up in dmesg, but no device /dev/sd.. entries are created to access this newly connected storage device.

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: systemd 253.5-1ubuntu6.1
ProcVersionSignature: Ubuntu 6.5.0-28.29-generic 6.5.13
Uname: Linux 6.5.0-28-generic x86_64
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: XFCE
Date: Mon Apr 22 08:13:26 2024
InstallationDate: Installed on 2011-10-19 (4568 days ago)
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: {report['dmi.sys.vendor']} {report['dmi.product.name']}
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.5.0-28-generic root=/dev/mapper/vg-root ro elevator=deadline splash acpi=force reboot=bios crashkernel=384M-2G:128M,2G-:256M vt.handoff=7
SourcePackage: systemd
SystemdFailedUnits:
 Error: command ['systemctl', 'status', '--full', '●'] failed with exit code 4: Invalid unit name "●" escaped as "\xe2\x97\x8f" (maybe you should use systemd-escape?).
 Unit \xe2\x97\x8f.service could not be found.
 ------
 Error: command ['systemctl', 'status', '--full', '●'] failed with exit code 4: Invalid unit name "●" escaped as "\xe2\x97\x8f" (maybe you should use systemd-escape?).
 Unit \xe2\x97\x8f.service could not be found.
UpgradeStatus: Upgraded to mantic on 2019-04-27 (1822 days ago)
dmi.bios.date: 10/21/2013
dmi.bios.release: 2.15
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: V2.15
dmi.board.asset.tag: No Asset Tag
dmi.board.name: TravelMate P643-M
dmi.board.vendor: Acer
dmi.board.version: V2.15
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Acer
dmi.chassis.version: V2.15
dmi.ec.firmware.release: 1.19
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.15:bd10/21/2013:br2.15:efr1.19:svnAcer:pnTravelMateP643-M:pvrV2.15:rvnAcer:rnTravelMateP643-M:rvrV2.15:cvnAcer:ct9:cvrV2.15:skuTravelMateP643-M_0681_2.15:
dmi.product.family: TravelMate P643-M
dmi.product.name: TravelMate P643-M
dmi.product.sku: TravelMate P643-M_0681_2.15
dmi.product.version: V2.15
dmi.sys.vendor: Acer