Normally, as this is not really a high-impact bug, I would be a bit
reluctant to accept it as an SRU. Since every SRU introduces risks,
especially if it's in a big core package like qtbase. But since I see
there's activity here (and testers available) + the patch is rather
straightforward, then oh well, why not give it a chance.
** Changed in: qtbase-opensource-src (Ubuntu Bionic)
Status: New => Fix Committed
** Tags added: verification-needed verification-needed-bionic
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https://bugs.launchpad.net/bugs/1846821
Title:
Qt print dialog has wrong default page size
Status in qtbase-opensource-src package in Ubuntu:
Fix Released
Status in qtbase-opensource-src source package in Bionic:
Fix Committed
Bug description:
Please backport Qt patch 213677 to qtbase-opensource-src
https://codereview.qt-project.org/c/qt/qtbase/+/213677
[Impact]
In Qt5 applications, print dialog (Printer Properties) always defaults to A4
paper size, even when Letter is set as a default in all system and KDE
preferences. After changing manually, Letter-size pages print correctly, but
the setting does not stick.
This impacts users of Qt applications who print things and live in
countries where ISO 216 is not default, most notably the United
States.
[Test Case]
1) Use system settings (KDE preferences, gnome-control-center or
system-config-printer) to set the printer size to Letter.
2) Open any Qt application (e.g. KWrite or Falkon).
3) Open a print dialog.
4) Behavior expected: Print dialog would default to Letter paper size and not
A4.
[Regression Potential]
Two possibilities for regressions that I can imagine are:
- crashes because something is not defined;
- wrong default paper size (A4 wanted but CUPS returns something else).
[Additional Information]
The issue also affects other print settings, e.g. margins, though the
aforementioned patch does not deal with these. A similar issue regarding the
duplex setting was reported as Launchpad bug 1776173, and subsequently fixed,
but other print settings continue to cause problems.
Software versions:
lsb_release: Ubuntu 18.04.3 LTS
libqt5core5a: 5.9.5+dfsg-0ubuntu2.3
Kernel: 5.0.0-25-generic
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