If I try to open an image in my desktop folder with Gwenview, it locks up. This does not happen in any other folder on my file system, but I cannot seem to figure out what is actually causing this to happen. I've launched gwenview from konsole to see if any useful information comes up there, but I don't seem to be getting anywhere doing that as I've moved the folder it seems to be complaining about yet gwenview still locks up and the suspect folder changes.

Here is the konsole read out when launching gwenview and navigating to my desktop folder.

Code: Select all

ben@arch-desktop:~$ gwenview
Object::connect: No such signal org::freedesktop::UPower::DeviceAdded(QDBusObjectPath)
Object::connect: No such signal org::freedesktop::UPower::DeviceRemoved(QDBusObjectPath)
gwenview(18098) KSharedUiServerProxy::KSharedUiServerProxy: kuiserver registered
gwenview(18098)/kdeui (kdelibs): Attempt to use QAction "edit_redo" with KXMLGUIFactory!
gwenview(18098)/kdeui (kdelibs): Attempt to use QAction "edit_undo" with KXMLGUIFactory!
gwenview(18098) Gwenview::TimeUtils::CacheItem::updateFromExif: Could not open "/home/ben/Desktop/synaptiks" for reading
gwenview(18098) Gwenview::TimeUtils::CacheItem::updateFromExif: Could not open "/home/ben/Desktop/Gramatik - The Age of Reason" for reading


Any ideas on why this might be happening or how I further debug this?

—Thanks.

open kdebugdialog -> deselect all -> search for: gwenview -> select it -> ok
then try opening the file and then open in kate ~/.xsession-errors and at the bottom should be any errors found

google01103 wrote:open kdebugdialog -> deselect all -> search for: gwenview -> select it -> ok
then try opening the file and then open in kate ~/.xsession-errors and at the bottom should be any errors found

Same print out as the one from launching within konsole

does the file open ok with other programs such as Okular? or a non-KDE one?

google01103 wrote:does the file open ok with other programs such as Okular? or a non-KDE one?

yes

can you place the image on a pic hosting site where I could access try it

google01103 wrote:can you place the image on a pic hosting site where I could access try it

The image is not the problem, it's that the file browser component of gwenview is running into an issue indexing (or whatever it does) something on my desktop

what's

Code: Select all

file --mimetype file_name  && file file_name

google01103 wrote:what's

Code: Select all

file --mimetype file_name  && file file_name

I'm unclear on what file I should be examining

sorry I might have gotten confused, its a specific folder and no matter where that folder resides trying to open it in Gwenview freezes Gwenview?

let's go back to your 1st post and retry opening the folder and a file in that folder with gwenview from within Konsole and then again look at ~/.xsession-errors using the command

Code: Select all

gwenview folder_name

and

Code: Select all

gwenview folder_name/file_name

also run the file command from my previous post on that specific folder

google01103 wrote:sorry I might have gotten confused, its a specific folder and no matter where that folder resides trying to open it in Gwenview freezes Gwenview?

let's go back to your 1st post and retry opening the folder and a file in that folder with gwenview from within Konsole and then again look at ~/.xsession-errors using the command

Code: Select all

gwenview folder_name

and

Code: Select all

gwenview folder_name/file_name

also run the file command from my previous post on that specific folder

Thanks again for your help and bearing with me!

Code: Select all

ben@arch-desktop:~$ gwenview ~/Desktop/
Object::connect: No such signal org::freedesktop::UPower::DeviceAdded(QDBusObjectPath)
Object::connect: No such signal org::freedesktop::UPower::DeviceRemoved(QDBusObjectPath)
gwenview(11688) KSharedUiServerProxy::KSharedUiServerProxy: kuiserver registered
gwenview(11688)/kdeui (kdelibs): Attempt to use QAction "edit_redo" with KXMLGUIFactory!
gwenview(11688)/kdeui (kdelibs): Attempt to use QAction "edit_undo" with KXMLGUIFactory!
gwenview(11688) Gwenview::TimeUtils::CacheItem::updateFromExif: Could not open "/home/ben/Desktop/synaptiks" for reading
gwenview(11688) Gwenview::TimeUtils::CacheItem::updateFromExif: Could not open "/home/ben/Desktop/Gramatik - The Age of Reason" for reading
Killed


Code: Select all

ben@arch-desktop:~$ gwenview ~/Desktop/ego\ diagram.png
Object::connect: No such signal org::freedesktop::UPower::DeviceAdded(QDBusObjectPath)
Object::connect: No such signal org::freedesktop::UPower::DeviceRemoved(QDBusObjectPath)
gwenview(11786) KSharedUiServerProxy::KSharedUiServerProxy: kuiserver registered
gwenview(11786)/kdeui (kdelibs): Attempt to use QAction "edit_redo" with KXMLGUIFactory!
gwenview(11786)/kdeui (kdelibs): Attempt to use QAction "edit_undo" with KXMLGUIFactory!
gwenview(11786) Gwenview::TimeUtils::CacheItem::updateFromExif: Could not open "/home/ben/Desktop/synaptiks" for reading
gwenview(11786) Gwenview::TimeUtils::CacheItem::updateFromExif: Could not open "/home/ben/Desktop/Gramatik - The Age of Reason" for reading
Killed


Code: Select all

ben@arch-desktop:~$ file --mimetype ~/Desktop/ && file ~/Desktop/
file: unrecognized option '--mimetype'
Usage: file [-bchikLlNnprsvz0] [--apple] [--mime-encoding] [--mime-type]
            [-e testname] [-F separator] [-f namefile] [-m magicfiles] file ...
       file -C [-m magicfiles]
       file [--help]


Please run Gwenview under a debugger such as gdb, and generate a backtrace. Based on the "Killed" message which is printed to the terminal, I suspect Gwenview could be attempting to exceed resource usage limits (ulimit -a) or is entering into a recursive loop.

A debugger should clarify which of these is the case, or highlight the code which is at fault.

bcooksley wrote:Please run Gwenview under a debugger such as gdb, and generate a backtrace. Based on the "Killed" message which is printed to the terminal, I suspect Gwenview could be attempting to exceed resource usage limits (ulimit -a) or is entering into a recursive loop.

A debugger should clarify which of these is the case, or highlight the code which is at fault.

Thanks again for your replies and your patience (especially your patience ). However, I regret that I'm not familiar with debuggers or producing backtraces. I'm going to read up on it in my distro's wiki, but if you could provide me with info on how to do this, well, that would be great too.

I've installed ddd and gdb and attempted to run gwenview though it, but it just informs me that I do not have debugging symbols for it and finishes without launching the app or doing anything useful.

You should be able to install debugging symbols using your package manager - they usually have a -dbg or -debug suffix. For Gwenview, you'll want to get the debugging symbols for Qt and kdelibs as well.

In terms of starting Gwenview in a debugger, I would suggest looking at the information provided at https://wiki.debian.org/HowToGetABacktrace#Running_gdb

Alternatively, you may want to run Gwenview with strace like this:

strace -s 100 gwenview > strace.log 2>&1

and post the generated strace.log file.