Page 1 of 3
Qtractor crashes
Posted: Mon May 23, 2022 2:21 am
by scott.thomason
Hi all, hi @rncbc. I've been working on a project for a few days, everything was coming along, then just about an hour ago, Qtractor started crashing whenever I would 1) try to change the fore/background color of a track to a custom color (clicking on the palette), or 2) normalizing an audio clip. I was originally running Qtractor under NSM with Raysession, but I have since tried both with and without with the same result.
I'm not sure what to look for...can somebody point me in the right direction to get started debugging this?
---scott
Re: Qtractor crashes
Posted: Mon May 23, 2022 2:23 am
by scott.thomason
...it also crashes with a brand-new project, too.
I'm on Manjaro, and the Qtractor version is the one from the official Manjaro repo, v0.9.26-2.
Re: Qtractor crashes
Posted: Mon May 23, 2022 2:29 am
by scott.thomason
It also happens with the Flatpak.
Re: Qtractor crashes
Posted: Mon May 23, 2022 3:08 am
by j_e_f_f_g
Does it crash when you don a ballerini tutu and dance the last act of Swan Lake wearing a hockey mask like Jason in "Friday the 13th"?
Consult the QTractor manual chapter 13 - "Configuring JACK and other satanic rituals".
Re: Qtractor crashes
Posted: Mon May 23, 2022 6:22 am
by scott.thomason
j_e_f_f_g wrote: ↑Mon May 23, 2022 3:08 am
Does it crash when you don a ballerini tutu and dance the last act of Swan Lake wearing a hockey mask like Jason in "Friday the 13th"?
Yes. It crashes then, too.
Re: Qtractor crashes
Posted: Mon May 23, 2022 7:12 am
by sunrat
Start Qtractor from a terminal and see if any error messages eventuate.
Re: Qtractor crashes
Posted: Mon May 23, 2022 7:50 am
by scott.thomason
sunrat wrote: ↑Mon May 23, 2022 7:12 am
Start Qtractor from a terminal and see if any error messages eventuate.
Only
I don't see a core file anywhere, though.
Re: Qtractor crashes
Posted: Mon May 23, 2022 10:19 am
by Linuxmusician01
scott.thomason wrote: ↑Mon May 23, 2022 2:21 am
Hi all, hi @rncbc. I've been working on a project for a few days, everything was coming along, then just about an hour ago, Qtractor started crashing whenever I would 1) try to change the fore/background color of a track to a custom color (clicking on the palette),
I've had the same (sort of) prob problem w/ Qtractor. See this
LM topic. Appeared to be incompatibility w/ XFCE. Workarounds:
- manually edit the .qtr file
- use another desktop environment to change colors
Re: Qtractor crashes
Posted: Mon May 23, 2022 4:01 pm
by scott.thomason
Linuxmusician01 wrote: ↑Mon May 23, 2022 10:19 am
I've had the same (sort of) prob problem w/ Qtractor. See this
LM topic. Appeared to be incompatibility w/ XFCE. Workarounds:
- manually edit the .qtr file
- use another desktop environment to change colors
Thanks for the tip. I'll look into a non-Gnome/Gtk theme. I made sure I tested with the "Use desktop environment native dialogs" both on and off, and it crashes either way.
While in View > Options, I unchecked the "Capture STDOUT" option, figuring that might allow any output to make it to the terminal, and it did:
Code: Select all
(process:60734): Gtk-CRITICAL **: 10:52:00.484: _gtk_style_provider_private_get_settings: assertion 'GTK_IS_STYLE_PROVIDER_PRIVATE (provider)' failed
(process:60734): Gtk-CRITICAL **: 10:52:00.484: _gtk_style_provider_private_get_settings: assertion 'GTK_IS_STYLE_PROVIDER_PRIVATE (provider)' failed
(process:60734): Gtk-CRITICAL **: 10:52:00.484: _gtk_style_provider_private_get_settings: assertion 'GTK_IS_STYLE_PROVIDER_PRIVATE (provider)' failed
Segmentation fault (core dumped)
So maybe it is indeed a desktop environment issue. Funny that it worked OK in Mint, though.
Does this error give anyone more clues about what's going wrong?
Re: Qtractor crashes
Posted: Mon May 23, 2022 4:10 pm
by rncbc
not going into any meltdown whatsoever, but since gnome3 come along, its color picker is a dang nightmare for non-gtk2,3,4+ apps
Re: Qtractor crashes
Posted: Mon May 23, 2022 4:38 pm
by scott.thomason
Googling the error message
"_gtk_style_provider_private_get_settings: assertion 'GTK_IS_STYLE_PROVIDER_PRIVATE (provider)' failed" lead me to a solution at
https://forum.manjaro.org/t/qt5ct-crash ... e/81957/11. It solved the first problem, that of crashing when trying to open the color selector to change the color of a track. For the record, all I had to do was delete folder ~/.config/qt5ct, which also had the pleasant effect of getting rid of that dark theme.
However, I still get the crash when I try to normalize a .wav clip, and there is no output on the terminal besides the core dump message. Is there an environment variable or something I can set to get more info out of Qt perhaps?
Re: Qtractor crashes
Posted: Mon May 23, 2022 4:41 pm
by scott.thomason
rncbc wrote: ↑Mon May 23, 2022 4:10 pm
not going into any meltdown whatsoever, but since gnome3 come along, its color picker is a dang nightmare for non-gtk2,3,4+ apps
Ah, I'll try a non-gtk theme just to prevent any future incompatibilities. For now, I've solved that issue by deleting ~/.config/qt5ct (and qt6ct for good measure).
Do you have any idea what might be causing the crash on normalize?
Re: Qtractor crashes
Posted: Mon May 23, 2022 4:47 pm
by scott.thomason
Linuxmusician01 wrote: ↑Mon May 23, 2022 10:19 am
I've had the same (sort of) prob problem w/ Qtractor. See this
LM topic. Appeared to be incompatibility w/ XFCE. Workarounds:
- manually edit the .qtr file
- use another desktop environment to change colors
What kind of edits did you make to the .qtr file, and what impact did they have?
What DE did you switch to for it to work?
Thanks...
Re: Qtractor crashes
Posted: Mon May 23, 2022 4:54 pm
by scott.thomason
Ah, I see the .qtr file is just XML. I can handle changing the colors there, and it will avoid changing Manjaro Gnome edition over to something Qt-ish. Thanks again.
Re: Qtractor crashes
Posted: Mon May 23, 2022 5:31 pm
by rncbc
scott.thomason wrote: ↑Mon May 23, 2022 4:41 pm
Do you have any idea what might be causing the crash on normalize?
idk (rly) but perhaps try the latest snapshot from git?