Crashing after upgrade to LinuxMint 22

[wujastyk]

Environment

• TeXstudio:
• Qt: Using Qt Version 5.12.8, compiled with Qt 5.12.8 R (in the appimage)
• OS: Linux Mint with Cinnamon desktop
• TeX distribution: TeXLive
• TeXstudio version 4.8.3 installed from deb.

I have fallen back to using the Appimage, which works fine.

Expected behavior

normal startup

Actual behavior

$ texstudio

(texstudio:57550): GLib-GObject-CRITICAL **: 19:28:10.892: cannot register existing type 'GdkDisplayManager'

(texstudio:57550): GLib-CRITICAL **: 19:28:10.892: g_once_init_leave_pointer: assertion 'result != 0' failed

(texstudio:57550): GLib-GObject-CRITICAL **: 19:28:10.892: g_object_new_with_properties: assertion 'G_TYPE_IS_OBJECT (object_type)' failed

(texstudio:57550): GLib-GObject-CRITICAL **: 19:28:10.892: invalid (NULL) pointer instance

(texstudio:57550): GLib-GObject-CRITICAL **: 19:28:10.892: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

(texstudio:57550): GLib-GObject-CRITICAL **: 19:28:10.892: invalid (NULL) pointer instance

(texstudio:57550): GLib-GObject-CRITICAL **: 19:28:10.892: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

(texstudio:57550): GLib-GObject-CRITICAL **: 19:28:10.894: cannot register existing type 'GdkDisplay'

(texstudio:57550): GLib-CRITICAL **: 19:28:10.894: g_once_init_leave_pointer: assertion 'result != 0' failed

(texstudio:57550): GLib-GObject-CRITICAL **: 19:28:10.894: g_type_register_static: assertion 'parent_type > 0' failed

(texstudio:57550): GLib-CRITICAL **: 19:28:10.894: g_once_init_leave_pointer: assertion 'result != 0' failed

(texstudio:57550): GLib-GObject-CRITICAL **: 19:28:10.894: g_object_new_with_properties: assertion 'G_TYPE_IS_OBJECT (object_type)' failed
Segmentation fault (core dumped)

How to reproduce

run /usr/bin/texstudio

[sunderme]

no sure where you got the deb from, but ubuntu 24.04 (base for linux mint 22) uses qt 5.15.12. Please just install the proper package or use the ubuntu ppa (https://code.launchpad.net/~sunderme/+archive/ubuntu/texstudio)

[wujastyk]

no sure where you got the deb from, but ubuntu 24.04 (base for linux mint 22) uses qt 5.15.12. Please just install the proper package or use the ubuntu ppa (https://code.launchpad.net/~sunderme/+archive/ubuntu/texstudio)

The deb is from the LPP that you maintain. It is the "proper" package.

I have tried both the deb from your Launchpad site and from the Mint package manager. Here are the versions:

~$ texstudio --version
TeXstudio 4.8.3 (0.0.0++)
:~$ texstudio --version
TeXstudio 4.7.2 (4.7.2+ds-2build3)

Both exhibit the same core dump on launch.

My system has QT 5.15.13 installed.

PYQT_VERSION = 331530
PYQT_VERSION_STR = 5.15.10
QOpenGLVersionProfile = <class 'PyQt5.QtGui.QOpenGLVersionProfile'>
QOperatingSystemVersion = <class 'PyQt5.QtCore.QOperatingSystemVersion'>
QT_VERSION = 331533
QT_VERSION_STR = 5.15.13
QVersionNumber = <class 'PyQt5.QtCore.QVersionNumber'>

That's why I have written this issue. It's not obvious to me what's wrong on my system.

I am using TeXlive as a direct "network" installation, not the one in the Mint library. So I have to build an equivs package so that texstudio's dependencies don't pull down a whole second texlive installation. That may be where the problem is.

[sunderme]

I can only state that texstudio from ppa works fine on ubuntu 24.04. I can't/won't debug remote systems.

[wujastyk]

Well, it obviously doesn't. But I understand that there's only so much you can do. I was hoping the core-dump messages would signal more to you than they do to me.

I've been trying all sorts of checks with QT and Python versions and libraries and conf files. No luck yet.

I have another Mint 22 installation on a laptop where the same texstudio deb works just fine. The problem on my desktop machine arose immediately after the 22 upgrade that I did yesterday. That's another variable that's changed recently.

[sunderme]

Only suggestion is to remove .config/texstudio to start clean.

[wujastyk]

Thanks, I tried that but it didn't cure the core dump. I'll nail it eventually, and I'll report back here.

[wujastyk]

After reading this page, I said at the CLI:

$export QT_QPA_PLATFORMTHEME="qt5ct"

and Texstudio started up nicely, without all those Gdk errors.

[sunderme]

so, we can close this ?