Flatpak version doesn't launch on Linux Mint

[SpeeQz1]

Flatpak Shotcut won't open when launching it on Linux Mint, surprisingly the .deb and AppImage version do work.

When trying to run the flatpak in terminal:

Gtk-Message: 22:21:43.196: Failed to load module "xapp-gtk3-module"
libDeckLinkAPI.so: cannot open shared object file: No such file or directory
---
formats:
  - a64
  - ac3
  - ac4

...
# Just prints out more formats and codecs

Shotcut Version: 24.11.17 Flatpak
OS: Linux Mint 22 (Cinnamon)

[ddennedy]

I installed Mint 22 Cinnamon in a virtual machine and the Shotcut flatpak, and it worked for me:

I too get the warnings about xapp-gtk3-module and libDeckLinkAPI.so. The DeckLink message is well known and not an error. That is an optional user-space driver for specialized video production hardware.

I guess something else installed on your system is causing a problem, but Flatpak is usually more isolated than the portable or AppImage.
🤷

[SpeeQz1]

I installed Mint 22 Cinnamon in a virtual machine and the Shotcut flatpak, and it worked for me:

I too get the warnings about xapp-gtk3-module and libDeckLinkAPI.so. The DeckLink message is well known and not an error. That is an optional user-space driver for specialized video production hardware.

I guess something else installed on your system is causing a problem, but Flatpak is usually more isolated than the portable or AppImage. 🤷

Anyways to debug this then?

[ddennedy]

Of course there is a way to debug it, but I do not know from memory. Ask AI or search the web for how to debug a flatpak with gdb because that is what I would have to do and copy and paste here it for you.

[SpeeQz1]

Of course there is a way to debug it, but I do not know from memory. Ask AI or search the web for how to debug a flatpak with gdb because that is what I would have to do and copy and paste here it for you.

Followed this documentation: Debugging

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Reading symbols from /app/bin/shotcut...
Reading symbols from /usr/lib/debug//app/bin/shotcut.debug...
(gdb) run
Starting program: /app/bin/shotcut 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffff0b756c0 (LWP 27)]
[New Thread 0x7fffebfff6c0 (LWP 28)]
Gtk-Message: 01:30:54.548: Failed to load module "xapp-gtk3-module"
[New Thread 0x7fffea86c6c0 (LWP 29)]
[New Thread 0x7fffe8b456c0 (LWP 30)]
[New Thread 0x7fffd49ff6c0 (LWP 31)]
libDeckLinkAPI.so: cannot open shared object file: No such file or directory
[New Thread 0x7fffd41fe6c0 (LWP 32)]
---
formats:
  - a64
  - ac3

...
# Rest of codecs and formats

Thread 1 "shotcut" received signal SIGABRT, Aborted.
__pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, 
    no_tid=no_tid@entry=0) at pthread_kill.c:44
44	      return INTERNAL_SYSCALL_ERROR_P (ret) ? INTERNAL_SYSCALL_ERRNO (ret) : 0;

[ddennedy]

Thanks, but it is better to have all of the lines after gdb command bt because the output is not useful (Shotcut does not call pthread_kill).

[SpeeQz1]

Thanks, but it is better to have all of the lines after gdb command bt because the output is not useful (Shotcut does not call pthread_kill).

gdb.txt

[ddennedy]

From this line in the debug output it looks like this version of Qt fails with the OpenGL on your computer

#12 0x00007fffd5869db1 in QXcbGlxIntegration::createPlatformOpenGLContext (this=0x5555564c9b20, context=) at /run/build-runtime/qt6-qtbase/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qxcbglxintegration.cpp:158

[SpeeQz1]

From this line in the debug output it looks like this version of Qt fails with the OpenGL on your computer

#12 0x00007fffd5869db1 in QXcbGlxIntegration::createPlatformOpenGLContext (this=0x5555564c9b20, context=) at /run/build-runtime/qt6-qtbase/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qxcbglxintegration.cpp:158

Here's my version:
OpenGL version string: 4.6.0 NVIDIA 550.127.08

[SpeeQz1]

@ddennedy After some more application usage I noticed this is a global issue with my system when it comes to flatpaks. For some reason some flatpaks would not run on my system when they run perfectly fine on a VM with the same version of Mint.
Any idea what could be causing this?
I am using Nvidia 550 drivers by the way and I believe it's because I am not using the Mesa version since that is what the VM uses.

Here is the error from Gwenview:

qt.glx: qglx_findConfig: Failed to finding matching FBConfig for QSurfaceFormat(version 2.0, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize -1, redBufferSize 1, greenBufferSize 1, blueBufferSize 1, alphaBufferSize -1, stencilBufferSize -1, samples -1, swapBehavior QSurfaceFormat::SingleBuffer, swapInterval 1, colorSpace QColorSpace(), profile  QSurfaceFormat::NoProfile)
qt.glx: qglx_findConfig: Failed to finding matching FBConfig for QSurfaceFormat(version 2.0, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize -1, redBufferSize 1, greenBufferSize 1, blueBufferSize 1, alphaBufferSize -1, stencilBufferSize -1, samples -1, swapBehavior QSurfaceFormat::SingleBuffer, swapInterval 1, colorSpace QColorSpace(), profile  QSurfaceFormat::NoProfile)
qt.glx: qglx_findConfig: Failed to finding matching FBConfig for QSurfaceFormat(version 2.0, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize -1, redBufferSize 1, greenBufferSize 1, blueBufferSize 1, alphaBufferSize -1, stencilBufferSize -1, samples -1, swapBehavior QSurfaceFormat::SingleBuffer, swapInterval 1, colorSpace QColorSpace(), profile  QSurfaceFormat::NoProfile)
Could not initialize GLX