(QT5 bug?) In Kubuntu 17.10 the printing options (size, quality...) don't show in printer properties dialog

[Stéphane Berbigier]

I just moved to Kubuntu 17.10.

When I want to print a pdf doc (okular), a picture (gwenview), a mail etc. the tab specifying the printer options, as duplex printing, printing quality, paper size etc. doesn't appear anymore.

My printer is an Epson WF-7620 and the drivers are up to date. I can still modify the printing options via cups (localhost:631) or the kde settings panel.

It seems to be a Qt bug as I found this report : https://bugreports.qt.io/browse/QTBUG-54464
This reports seems to mention that the problem has found a solution and that this solution will be included in next spring qt version. I'm not able to work this out by myself but this is a really annoying issue and I don't like much the idea of waiting 6 more months with it.

Any chance someone could build an official update with a patch?

Thanks in advance for your work an any answer...

[Till Kamppeter (till-kamppeter)]

First, this is not a bug in CUPS. CUPS provides all the information a print dialog would need. Nothing has been withdrawn here.

Gerry, can you have a look? Ideally, the efforts of the Google Summer of Code 2017 should be backported, but if this gets too complex, the patch for the recovery of the "Advanced" tab would be a good step forward.

[Dmitry Shachnev (mitya57)]

> the patch for the recovery of the "Advanced" tab would be a good step forward

This one is also quite complex. The upstream work was a series of commits (https://code.qt.io/cgit/qt/qtbase.git/log/src/printsupport/dialogs/qprintdialog_unix.cpp/?h=b4330bc391bbb088), and most of them do not apply cleanly on 5.9 branch. After resolving some conflicts (blindly, I did not test), the resulting patch is 6 files changed, 460 insertions(+), 100 deletions(-).

This is not something I would be happy about in our Qt packaging (but still better than the OpenSSL 1.1 patch though).

[Launchpad Janitor (janitor)]

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

[Dmitry Shachnev (mitya57)]

This is fixed in Ubuntu 18.10 which has Qt 5.11. As I wrote above, the patch is huge, so it does not meet the acceptance criteria for a stable release update.