Ubuntu
cups package

Squared number (N^2) of copies printed

Bug #1785644 reported by arty
12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
cups (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

I wanted to print 4 copies of a 3-pages document (12 pages total) and instead 16 copies (48 pages) were printed.

Using latest Ubuntu with all updates, Gnome Shell on Xorg, I opened a PDF file in Evince 3.28.2-1, clicked "Print", clicked "+" button several times to increase the number of copies to 4, and sent it printing on Xerox_AltaLink_C8030. That network printer was previously auto-detected with default drivers.

access_log only has one line at that time:
localhost - - [06/Aug/2018:16:28:14 +0200] "POST /printers/Xerox_AltaLink_C8030 HTTP/1.1" 200 64269 Print-Job successful-ok

error_log doesn’t have anything related.

I am attaching the print job captured per https://wiki.ubuntu.com/DebuggingPrintingProblems#Capturing_print_job_data

On the cups page with completed jobs http://localhost:631/printers/Xerox_AltaLink_C8030?which_jobs=completed the amount of pages is shown as "48".

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: cups 2.2.7-1ubuntu2.1
ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
Uname: Linux 4.15.0-29-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Aug 6 16:12:58 2018
InstallationDate: Installed on 2018-05-02 (96 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Lpstat:
 device for Lexmark_M3150_10_: ipp://ET0021B7C1D744.local:631/ipp/print
 device for WorkCentre-7120: socket://10.2.20.114
 device for Xerox_AltaLink_C8030: ipp://XRX9C934E98F100.local:631/ipp/print
 device for Xerox_VersaLink_C505_8c_ab_2c_4_: ipps://XC8cab2c.local:631/ipp/print
 device for Xerox_VersaLink_C505_8c_ab_50_7_: ipps://XC8cab50.local:631/ipp/print
MachineType: Dell Inc. OptiPlex 7020
Papersize: a4
PpdFiles:
 Error: command ['fgrep', '-H', '*NickName', '/etc/cups/ppd/Xerox_VersaLink_C505_8c_ab_50_7_.ppd', '/etc/cups/ppd/Xerox_AltaLink_C8030.ppd', '/etc/cups/ppd/Xerox_VersaLink_C505_8c_ab_2c_4_.ppd', '/etc/cups/ppd/WorkCentre-7120.ppd', '/etc/cups/ppd/Lexmark_M3150_10_.ppd'] failed with exit code 2: grep: /etc/cups/ppd/Xerox_VersaLink_C505_8c_ab_50_7_.ppd: Permission denied
 Xerox_AltaLink_C8030: AltaLink C8030
 grep: /etc/cups/ppd/Xerox_VersaLink_C505_8c_ab_2c_4_.ppd: Permission denied
 grep: /etc/cups/ppd/WorkCentre-7120.ppd: Permission denied
 grep: /etc/cups/ppd/Lexmark_M3150_10_.ppd: Permission denied
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/usr/bin/fish
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-29-generic root=UUID=3fd92192-fa04-40ea-ac71-f1dff8e153f7 ro quiet splash vt.handoff=1
SourcePackage: cups
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/25/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A00
dmi.board.name: 02YYK5
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA00:bd04/25/2014:svnDellInc.:pnOptiPlex7020:pvr01:rvnDellInc.:rn02YYK5:rvrA00:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 7020
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

See original description
Revision history for this message
arty (me-arty) wrote :
description: updated
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in cups (Ubuntu):
status: New → Confirmed
Revision history for this message
Marco Simondo (msaesis) wrote :

Good morning

We are experiencing on Ubuntu 18.04 with CUPS 2.2.7 this strange problem.
We use Ubuntu 18.04 clients to print to raw queues on a Ubuntu 18.04 server.
We do this for print accounting and control in our application.

We do many many tests, on Ubuntu 18.04, Kubuntu 18.04, Ubuntu 19.04, and to finish, on Debian 9 (with CUPS 2.2.1)

For our testing, we create a printer called MYREMOTEPRINTER .
This is the name of the raw queue on server and, to keep it simple, the name of the printer for the clients.

Each time we print a document (from Firefox, evince, and many others applications), asking 2 ou more copies, we get 2^2, or 3^3 and so on copies.
Same behaviour if we print from command line ("lp -d MYREMOTEPRINTER -n 2 MyDocument.PDF").

A document of 3 pages, 2 copies, will generate 3 * 2^2 pages = 12 pages instead of 6.
And if you want to print just a unique page, 10 copies, you will get 100 pages !

This problem did not exist on Ubuntu 14.04 with CUPS 1.7.2

The same problem has been opened (and closed, without any explanations) on GitHub here :
https://github.com/apple/cups/issues/5015
(were I posted too this comment)

We discovered also that if we declare the remote printer as :
  lpd://REMOTESERVER/MYREMOTEPRINTER
instead of
  ipp://REMOTESERVER/printers/MYREMOTEPRINTER

(and declare cups-ldp in inetd.conf, of course) problem is not present.

This doesn't seem just an Ubuntu bug (Debian has same problem), but if it is a CUPS problem, I don't understand why it has been closed by its developer.

Do you think this bug could be solved in current Ubuntu 18.04 LTS ?

Best regards
Marco

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