QGIS » QGIS Application

Works fine for me here:

- latest master (Debian, self compile)
- create a project, with both rasters, shp etc init, save in /tmp/aa
- close project
- open project again

No problems opening Layer Properties.

Is it an old project maybe?

Can you start with a very clean environment, by removing/renaming : ~/.local/share/QGIS dir ?
Or by starting QGIS eg with:

qgis --profiles-path /tmp/tempprofile

Running on a Mac

does not happen with raster layer properties

I can confirm on mac with vector layers, all fine with raster layers. possible duplicates #17813

I noticed 2 other places like this:
- vector layer properties => actions => add => switch type to python => change focus from action to text to something else (like description)
- options dialog -> apply or cancel

Could it be a focus out issue?

I can't replicate this hang on my linux build:
- Qt 5.9.1
- GDAL/OGR 2.2.1

Would be nice to nail this one.

Denis, you mentioned "switching to generic", on my machine, the default combo box value is generic, isn't that the case on your machine?

sorry switch to python

probably relevant https://bugreports.qt.io/browse/QTBUG-55725

Niklas, just to be sure, are you seeing this hang on a linux machine (as you suggest in your issue form)?

Edit: if you are on linux, can you give us some more information, i.e. which distribution (ubuntu, kubuntu, etc), which Qt5 version is on your system, etc.

I'm on archlinux. On a windows machine I do not have the same issue.

Here is what QtCreator spits out when I attach GDB to the process.

1 QWidget::isAncestorOf(QWidget const *) const 0x7fffef6e1856
2 QWidgetPrivate::reparentFocusWidgets(QWidget *) 0x7fffef6f3723
3 QWidget::setParent(QWidget *, QFlags<Qt::WindowType>) 0x7fffef6fa1c9
4 ?? 0x7fffc482990c
5 ?? 0x7fffc4848333
6 QWidgetPrivate::setStyle_helper(QStyle *, bool, bool) 0x7fffef6e8f0b
7 QWidgetPrivate::inheritStyle() 0x7fffef6e939f
8 QWidgetPrivate::setStyle_helper(QStyle *, bool, bool) 0x7fffef6e90a9
9 QWidgetPrivate::inheritStyle() 0x7fffef6e939f
10 QWidgetPrivate::setStyle_helper(QStyle *, bool, bool) 0x7fffef6e90a9
11 QWidgetPrivate::inheritStyle() 0x7fffef6e939f
12 QWidgetPrivate::setStyle_helper(QStyle *, bool, bool) 0x7fffef6e90a9
13 QWidgetPrivate::inheritStyle() 0x7fffef6e939f
14 QWidgetPrivate::setStyle_helper(QStyle *, bool, bool) 0x7fffef6e90a9
15 QWidgetPrivate::inheritStyle() 0x7fffef6e939f
16 QWidget::setParent(QWidget *, QFlags<Qt::WindowType>) 0x7fffef6fa224
17 QLayout::addChildWidget(QWidget *) 0x7fffef6d611f
18 QStackedLayout::insertWidget(int, QWidget *) 0x7fffef6dc27e
19 QTabWidget::insertTab(int, QWidget *, QIcon const&, QString const&) 0x7fffef88fe07
20 QTabWidget::insertTab(int, QWidget *, QString const&) 0x7fffef88fed9
... <More>

Does anyone have a guide for debugging QGIS to make better bugreports?

Here are my package versions:
qt5-base 5.10.0-3
qt5-tools 5.10.0-1
qt5-script 5.10.0-1
qtkeychain 0.8.0-2
qca-qt5 2.1.3-6
qt5-webkit 5.212.0alpha2-11
qt5-3d 5.10.0-1
proj 4.9.3-1
geos 3.6.2-1
sqlite 3.22.0-1
python-gdal 2.2.3-1
python-owslib 0.16.0-1
python-future 0.16.0-2
python-sip 4.19.7-1
python-psycopg2 2.7.3.2-1
python-yaml 3.12-3
python-numpy 1.14.0-1
python-jinja 2.10-1
python-pygments 2.2.0-1
qwtpolar 1.1.1-3
expat 2.2.5-1
python-qscintilla-qt5 2.10.2-1
spatialindex 1.8.5-1
gsl 2.4-1
libzip 1.4.0-1

> Is it an old project maybe?

Can you start with a very clean environment, by removing/renaming : ~/.local/share/QGIS dir ?
Or by starting QGIS eg with:

qgis --profiles-path /tmp/tempprofile

I tried loading with --profiles-path /tmp/tempprofile, but it still hangs. Started a new project and added a PostGIS layer. Still, hangs.