QGIS » QGIS Application

UPDATE: If you lock the screen manually (Windows-L) and then unlock there is the same hang issues. No file needs to be open for this to occur.

UPDATE2: After unlocking the screen and looking at the process in "Process Explorer" it shows that QGIS is Suspended. Un-suspending the process causes QGIS to close/crash/

Please try on QGIS 3.4.1, if the issue is still valid change the affected version, thanks.

Giovanni Manghi wrote:

Please try on QGIS 3.4.1, if the issue is still valid change the affected version, thanks.

Just did.
It is still an issue :-(
I have Win10/64bit.
I am running QGIS 3.4.3-Madeira
If QGIS is the foremost/active program, and I press Win L (lock) it will be suspended when I log in again (even if after just a few sexonds of the PC being locked).
But, if I have something else as the front app, then no problem. QGIS works fine, responds, does NOT get suspended.

Giovanni Manghi wrote:

Does it happens on 2.18?

Yes. It also happens in 2.18.16 - But there, upon the re-login, it has ready a small window titled "Crash dumped" and it gives the path and name of the log file (which is binary). I can send a link to a crash log (it is 75 mb; cannot upload here with max of 5 Mb).

UPDATE:

I just tried on another system. Win7/64, QGIS 3.4.0 and there I experience no problem. So it might just be a Windows 10 issue.

The system I have where the problem shows is a laptop, Lenovo Yoga 92013IKB, 4K touch display, Win 10 home, 64 bit.

Feel free to send me test suggestions if it can help narrow things down: jcw at plen dot ku dot dk

/Jesper.

UPDATE 2:

I just tried again on my Win10/64 setup w. QGIS 3.4.3 and now there is no problem. Happy happy me.

Yesterday I updated the BIOS (but couldn't test immediately afterwards) and that may have been what solved the issue.
So, we might just have to suggest a BIOS update in similiar circumstances.

If though, the issue of QGIS suspending upon screen lock returns to haunt me, I will make sure to post here again.

Happy new year to all QGIS'ers, Jesper.

PS:

Keith wrote back in August re. this: "Some functions of Windows also locks, such as trying to activate other applications.".

to which I'll add thgat so far I have not experienced that at all.
Only the QGIS instance(s) itself "locks up" once suspended.

Giovanni Manghi wrote:

Does not happen here on one of my laptops. Does it happen only on your system?

Only on one of my systems. As described above, it happens only on my Win10/64 and not on my Win7/64. I've also written with the original bug poster Keith and he says it is also still a problem for him.

I just had another crash (forced by me with "end processs" as it was in suspended mode) and here is the crash report detail from the "Oh uh!"-window:

Crash ID: c426515a80f17046e0ad1dd3b0e662de61328df0

Stack Trace

sqlite3_blob_bytes :
sqlite3_blob_bytes :
sqlite3_blob_bytes :
sqlite3_blob_bytes :
sqlite3_blob_bytes :
sqlite3_blob_bytes :
sqlite3_blob_bytes :
sqlite3_blob_bytes :
OGRDataSource::DestroyDataSource :
CPLStringList::FindString :
CPLStringList::empty :
CPLStringList::empty :
CPLStringList::PartialFindString :
OGREnvelope::OGREnvelope :
CPLStringList::operator[] :
QgsVectorLayer::~QgsVectorLayer :
PyInit__core :
QgsMapLayerStore::removeMapLayers :
QgsMapLayerStore::removeMapLayers :
QgsMapLayerStore::removeAllMapLayers :
QgsProject::clear :
QgisApp::closeProject :
QgisApp::fileExit :
QWidget::event :
QgisApp::event :
QApplicationPrivate::notify_helper :
QApplication::notify :
QgsApplication::notify :
QCoreApplication::notifyInternal2 :
QWidgetPrivate::close_helper :
QSizePolicy::QSizePolicy :
QSizePolicy::QSizePolicy :
QApplicationPrivate::notify_helper :
QApplication::notify :
QgsApplication::notify :
QCoreApplication::notifyInternal2 :
QGuiApplicationPrivate::processCloseEvent :
QWindowSystemInterface::sendWindowSystemEvents :
QEventDispatcherWin32::processEvents :
CallWindowProcW :
DispatchMessageW :
QEventDispatcherWin32::processEvents :
qt_plugin_query_metadata :
QEventLoop::exec :
QCoreApplication::exec :
main :
BaseThreadInitThunk :
RtlUserThreadStart :

QGIS Info
QGIS Version: 3.4.3-Madeira
QGIS code revision: 2f64a3c4e7
Compiled against Qt: 5.11.2
Running against Qt: 5.11.2
Compiled against GDAL: 2.4.0
Running against GDAL: 2.4.0

System Info
CPU Type: x86_64
Kernel Type: winnt
Kernel Version: 10.0.17134