| 2016-10-28 16:52:41 |
Till Kamppeter |
bug |
|
|
added bug |
| 2016-10-28 16:53:04 |
Till Kamppeter |
bug task added |
|
ghostscript (Ubuntu) |
|
| 2016-10-28 16:53:15 |
Till Kamppeter |
nominated for series |
|
Ubuntu Yakkety |
|
| 2016-10-28 16:53:15 |
Till Kamppeter |
bug task added |
|
ghostscript (Ubuntu Yakkety) |
|
| 2016-10-28 16:53:15 |
Till Kamppeter |
bug task added |
|
cups-filters (Ubuntu Yakkety) |
|
| 2016-10-28 17:24:58 |
Till Kamppeter |
description |
Printers conforming to the new IPP Everywhere standard (of the Printing Working Group, PWG, are starting to come onto the market. These printers are capable to inform the clients computers about all their capabilities (paper sizes, resolutions, finishers, ...) via IPP and understand known standard page description languages (always PWG Raster, but can also understand PostScript, PDF, JPEG, and/or PCL). So no drivers for these printers are needed. With CUPS, cups-filters, and one of Ghostscript, Poppler, or MuPDF they are fully supported.
Yakkety is intended to support them, but getting my hands on an IPP Everywhere printer (which takes PWG Raster as inpout format) I have found some issues:
- CUPS selects a filter chain using MuPDF but MuPDF is not installed by default.
- In contrary to CUPS Raster, PWG Raster contains a full page bitmap of the page, including the unprintable margins. Margins in the header are set to zero.
- Filter chains could send CUPS Raster instead of PWG Raster.
- Printed pages are not logged in /var/log/cups/page_log.
All these issued are fixed in cups-filters 1.11.5 and in a patch to Ghostscript (already upstream).
This bug report is for an SRU for Yakkety to fix the issues also there. |
Printers conforming to the new IPP Everywhere standard (of the Printing Working Group, PWG, http://www.pwg.org/) are starting to come onto the market. These printers are capable to inform the clients computers about all their capabilities (paper sizes, resolutions, finishers, ...) via IPP and understand known standard page description languages (always PWG Raster, but can also understand PostScript, PDF, JPEG, and/or PCL). So no drivers for these printers are needed. With CUPS, cups-filters, and one of Ghostscript, Poppler, or MuPDF they are fully supported.
Yakkety is intended to support them, but getting my hands on an IPP Everywhere printer (which takes PWG Raster as inpout format) I have found some issues:
- CUPS selects a filter chain using MuPDF but MuPDF is not installed by default.
- In contrary to CUPS Raster, PWG Raster contains a full page bitmap of the page, including the unprintable margins. Margins in the header are set to zero.
- Filter chains could send CUPS Raster instead of PWG Raster.
- Printed pages are not logged in /var/log/cups/page_log.
All these issued are fixed in cups-filters 1.11.5 and in a patch to Ghostscript (already upstream).
This bug report is for an SRU for Yakkety to fix the issues also there.
[Impact]
With "CreateIPPPrinterQueues Yes" set in /etc/cups/cups-browsed.conf IPP Everywhere printers are discovered in the network and automatically set up but they only print if mutool (package mupdf-tools) is installed. This leaves users with non-working print queues.
[Testcase]
Set "CreateIPPPrinterQueues Yes" in /etc/cups/cups-browsed.conf and restart cups-browsed. If an IPP Everywhere printer is in the network, it will be detected but you cannot print on the auto-generated queue. After installing the mupdf-tools package printing works.
With the fixed cups-filters and Ghostscript installed mupdf-tools is not needed. Jobs get filtered via Ghostscript and printing on the IPP Everywhere printer works.
[Regression Potential]
Small, as changes in the filter chain only happen if PWG Raster is involved and this happens only with IPP Everywhere printers. Only the output of PWG Raster and not of any other format is modified. |
|
| 2016-10-28 17:26:29 |
Till Kamppeter |
cups-filters (Ubuntu): importance |
Undecided |
High |
|
| 2016-10-28 17:26:31 |
Till Kamppeter |
cups-filters (Ubuntu Yakkety): importance |
Undecided |
High |
|
| 2016-10-28 17:26:33 |
Till Kamppeter |
ghostscript (Ubuntu): importance |
Undecided |
High |
|
| 2016-10-28 17:26:38 |
Till Kamppeter |
ghostscript (Ubuntu Yakkety): importance |
Undecided |
High |
|
| 2016-10-30 13:50:42 |
Launchpad Janitor |
ghostscript (Ubuntu): status |
New |
Fix Released |
|
| 2016-11-11 01:08:48 |
Till Kamppeter |
cups-filters (Ubuntu): status |
New |
Fix Released |
|
| 2016-11-14 21:12:08 |
Till Kamppeter |
cups-filters (Ubuntu Yakkety): status |
New |
In Progress |
|
| 2016-11-14 21:12:14 |
Till Kamppeter |
ghostscript (Ubuntu Yakkety): status |
New |
In Progress |
|
| 2016-11-14 21:15:31 |
Till Kamppeter |
attachment added |
|
cups-filters_1.11.4-0ubuntu2_1.11.4-0ubuntu2.1.debdiff https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/1637583/+attachment/4777414/+files/cups-filters_1.11.4-0ubuntu2_1.11.4-0ubuntu2.1.debdiff |
|
| 2016-11-14 21:16:38 |
Till Kamppeter |
attachment added |
|
ghostscript_9.19~dfsg+1-0ubuntu6_9.19~dfsg+1-0ubuntu6.1.debdiff https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/1637583/+attachment/4777415/+files/ghostscript_9.19~dfsg+1-0ubuntu6_9.19~dfsg+1-0ubuntu6.1.debdiff |
|
| 2016-11-14 21:31:57 |
Till Kamppeter |
attachment added |
|
cups-filters_1.11.4-0ubuntu2_1.11.4-0ubuntu2.1.debdiff https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/1637583/+attachment/4777416/+files/cups-filters_1.11.4-0ubuntu2_1.11.4-0ubuntu2.1.debdiff |
|
| 2016-11-17 20:57:16 |
Brian Murray |
ghostscript (Ubuntu Yakkety): status |
In Progress |
Fix Committed |
|
| 2016-11-17 20:57:24 |
Brian Murray |
bug |
|
|
added subscriber Ubuntu Stable Release Updates Team |
| 2016-11-17 20:57:30 |
Brian Murray |
bug |
|
|
added subscriber SRU Verification |
| 2016-11-17 20:57:35 |
Brian Murray |
tags |
|
verification-needed |
|
| 2016-11-17 21:04:08 |
Brian Murray |
cups-filters (Ubuntu Yakkety): status |
In Progress |
Fix Committed |
|
| 2016-11-18 01:23:37 |
Till Kamppeter |
tags |
verification-needed |
verification-done |
|
| 2016-11-28 22:29:07 |
Brian Murray |
removed subscriber Ubuntu Stable Release Updates Team |
|
|
|
| 2016-11-28 22:31:18 |
Launchpad Janitor |
ghostscript (Ubuntu Yakkety): status |
Fix Committed |
Fix Released |
|
| 2016-11-28 22:39:11 |
Launchpad Janitor |
cups-filters (Ubuntu Yakkety): status |
Fix Committed |
Fix Released |
|
