Public bug reported:
After reboot on Kubuntu, printing is unavailable because both
cups.service and cups.socket are inactive (“dead”). lpstat -r reports
“Scheduler is not running” and no printers are visible in System
Settings or applications. Printer configuration persists in
/etc/cups/printers.conf, but printing only works again after manually
starting CUPS (sudo systemctl start cups or sudo systemctl enable --now
cups.service). This happens repeatedly after reboots.
Repro steps:
- Configure any network printer (driverless IPP/IPPS works).
- Reboot.
- Observe lpstat -r and systemctl is-active cups cups.socket show inactive;
printers not shown in GUI/apps.
- Start CUPS manually → printers reappear and printing works.
Expected vs actual:
Expected: CUPS (or at least cups.socket) should be active after boot so
printing works without manual intervention.
Actual: Both cups.service and cups.socket are inactive after boot; printing
unavailable until manual start.
ProblemType: Bug
DistroRelease: Ubuntu 25.10
Package: cups 2.4.12-0ubuntu3.5
ProcVersionSignature: Ubuntu 6.17.0-12.12-generic 6.17.2
Uname: Linux 6.17.0-12-generic x86_64
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: unknown
CupsErrorLog:
CurrentDesktop: KDE
Date: Sun Feb 8 16:58:53 2026
InstallationDate: Installed on 2025-12-27 (43 days ago)
InstallationMedia: Kubuntu 25.10 "Questing Quokka" - Release amd64 (20251007)
Lpstat: device for Kyocera_PA2101: ipps://192.168.178.72:443/ipp/print
MachineType: Acer TravelMate P215-41-G3
PpdFiles: Error: command ['fgrep', '-H', '*NickName',
'/etc/cups/ppd/Kyocera_PA2101.ppd'] failed with exit code 2: grep:
/etc/cups/ppd/Kyocera_PA2101.ppd: Permission denied
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.17.0-12-generic
root=UUID=f702f525-89df-4bb6-8a35-3db7a1ca785c ro quiet splash amdgpu.runpm=0
amdgpu.gpu_recovery=1 vt.handoff=7
SourcePackage: cups
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/20/2021
dmi.bios.release: 2.2
dmi.bios.vendor: INSYDE Corp.
dmi.bios.version: V2.02
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Bassdrum_RC
dmi.board.vendor: LN
dmi.board.version: V2.02
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.ec.firmware.release: 1.6
dmi.modalias:
dmi:bvnINSYDECorp.:bvrV2.02:bd08/20/2021:br2.2:efr1.6:svnAcer:pnTravelMateP215-41-G3:pvrV2.02:rvnLN:rnBassdrum_RC:rvrV2.02:cvnChassisManufacturer:ct10:cvrChassisVersion:sku0000000000000000:
dmi.product.family: TravelMate P2
dmi.product.name: TravelMate P215-41-G3
dmi.product.sku: 0000000000000000
dmi.product.version: V2.02
dmi.sys.vendor: Acer
** Affects: cups (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apparmor apport-bug questing wayland-session
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https://bugs.launchpad.net/bugs/2141244
Title:
ubuntu: CUPS not started after reboot (cups.service and cups.socket
inactive), printers disappear until manual start
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