hplip does not wake up printer

[Wolf Rogner]

Ubuntu 18.04 fresh install
Printer: Color Laserjet Pro MFP M477fdw

The printer suspends after 5 mins to save power.

Expected: A print request should wake the printer and print.
Actual: The printer queue goes on hold

Mitigation measures:
1) wake printer manually (from the display) + unpause queue -> does not print
2) wake printer manually + restart queue -> does not print
3) restart printer (WHY???) + unpause queue -> PRINTS !!!

This behaviour can be reproduced in 18.04 and does not exist in previous versions of Ubuntu

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: hplip 3.17.10+repack0-5
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu May 3 08:30:01 2018
InstallationDate: Installed on 2018-04-30 (2 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Lpstat: device for HP_Color_LaserJet_MFP_M477fdw: hp:/net/HP_Color_LaserJet_MFP_M477fdw?ip=10.1.0.21
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 05ac:0273 Apple, Inc.
 Bus 001 Device 002: ID 05ac:8290 Apple, Inc.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Apple Inc. MacBookPro12,1
Papersize: a4
PpdFiles: Error: command ['fgrep', '-H', '*NickName', '/etc/cups/ppd/HP_Color_LaserJet_MFP_M477fdw.ppd'] failed with exit code 2: grep: /etc/cups/ppd/HP_Color_LaserJet_MFP_M477fdw.ppd: Permission denied
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1
SourcePackage: hplip
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/08/2017
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP121.88Z.0171.B00.1708080033
dmi.board.name: Mac-E43C1C25D4880AD6
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro12,1
dmi.chassis.type: 9
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-E43C1C25D4880AD6
dmi.modalias: dmi:bvnAppleInc.:bvrMBP121.88Z.0171.B00.1708080033:bd08/08/2017:svnAppleInc.:pnMacBookPro12,1:pvr1.0:rvnAppleInc.:rnMac-E43C1C25D4880AD6:rvrMacBookPro12,1:cvnAppleInc.:ct9:cvrMac-E43C1C25D4880AD6:
dmi.product.family: MacBook Pro
dmi.product.name: MacBookPro12,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

[Wolf Rogner (war-rsb)]

Cudos to my wife: Here is a more detailed and accurate description of the issue:

Preset: Printer is installed on Ubuntu 18.04

Turning on the printer and printing any document -> works
Putting notebook into suspend, after wakeup printing a document -> not printing
Mitigation:
- reboot printer
- reinstall printer software

After printer suspended (usually after 5 mins), printing a document -> not printing
After manually waking up the printer from the display and printing a document -> not printing

In all cases of not printing:
If the printer queue was held, resuming from the GUI (both methods, from Settings and the Additional printer settings queue view) the queue goes into printing status and reverts to held.

If the printer is freshly rebooted, starting a held queue leads to printing the document.

[Wolf Rogner (war-rsb)]

This seems to be related to systemd-resolved rather than hplip.

I set the printer to static IP and wakeup works fine.

Can be closed