[GNC] GTK Inspector blowing up on Mint 20 (was Re: help increasing size of font in GnuCash?)

[John Ralls]

It could also be a bug in the minty theme or in Gtk. Something tried to pass a nullptr for a cursor and whoever coded gdk_window_set_cursor_internal decided that that's such an awful problem that the program should crash instead of logging an error and leaving the cursor as-is.

Without a full stack trace it's impossible to know what called it with a nullptr. Can one of you repeat the experiment after installing the debugging symbols for libgtk, libgdk, and GnuCash and starting GnuCash in gdb, then get a stack trace? More detailed instructions at https://wiki.gnucash.org/wiki/Stack_Trace.

Regards,
John Ralls


> On Aug 17, 2020, at 10:14 PM, Adrien Monteleone <adrien.monteleone at lusfiber.net> wrote:
> 
> That didn't get very far. Not sure if this is a GnuCash bug, or an Inspector bug:
> 
> ```
> mint at mint:~$ GTK_DEBUG=interactive /usr/bin/gnucash
> Found Finance::Quote version 1.49.
> **
> Gdk:ERROR:../../../../gdk/gdkwindow.c:6530:gdk_window_set_cursor_internal: assertion failed: (!cursor || gdk_window_get_display (window) == gdk_cursor_get_display (cursor))
> Bail out! Gdk:ERROR:../../../../gdk/gdkwindow.c:6530:gdk_window_set_cursor_internal: assertion failed: (!cursor || gdk_window_get_display (window) == gdk_cursor_get_display (cursor))
> Aborted (core dumped)
> ```
> 
> GnuCash started as did the inspector, but as soon as GnuCash finished loading, the Inspector blew up and spit out the above.
> 
> I suspect an Inspector error but it could be from being fed something unexpected by GnuCash.
> 
> For full disclosure, I'm running this in a live environment, Mint is not installed.
> 
> Regards,
> Adrien
> 
> On 8/17/20 11:58 PM, Adrien Monteleone wrote:
>> I can confirm this.
>> I fired up Mint 20 Cinnamon in Vbox and installed GnuCash 3.8 from the Mint repos.
>> Generally, GnuCash should use the default GTK theme, which on Mint 20 is Mint-Y-Dark.
>> *note, the proper file name is `settings.ini` *not* `setup.ini`
>> Per the wiki I created:
>>   ~/.config/gtk-3.0/settings.ini
>> to contain:
>>   [Settings]
>>   gtk-theme-name=Mint-Y-Dark
>> ref: https://wiki.gnucash.org/wiki/GTK3#Themes
>> ref: https://wiki.gnucash.org/wiki/Configuration_Locations#GTK_CONFIG_HOME
>> Remembering that some 'Dark' themes aren't completely dark, with some panels still light, I tried:
>>   gtk-theme-name=Mint-Y-Darker
>> to no effect.
>> I also tried with setting this key instead:
>>   gtk-application-prefer-dark-theme=true
>> ref: https://developer.gnome.org/gtk3/stable/GtkSettings.html#GtkSettings--gtk-application-prefer-dark-theme ref: https://wiki.gnucash.org/wiki/GTK3#Themes
>> also to no effect.
>> *note, the above referenced Wiki page on themes advises to set the theme using Gnome Tweak. But Mint has its own Theme preference app. Presumably GnuCash should use the default system theme. It also discusses installing a custom theme, but that is not needed in this case at is a system theme.
>> I suppose I should fire up the GTKInspector to see what theme is being picked up. I shall report back what I find.
>> Regards,
>> Adrien
>> On 8/17/20 8:53 PM, Jimmy R via gnucash-user wrote:
>>> If the setup.ini works on a mac should it work on Mint/ Ubuntu if yes
>>> Then I have had no luck with the setup.ini doing anything for setting the
>>> dark theme = true on Mint 20.04
> 
> 
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