Linux 18.04: Segmentation fault (core dumped) and plenty of problems with Property Inspectors

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mary
mary on 6 Apr 2021
Commented: mary on 6 Apr 2021
Hi,
My operating system is linux 18.04. Since the installation of Matlab2019a on my system, I've had problems opening property inspectors of figures. For instance to change colors, I was using following command which I had found on Mathworks forums:
s = settings;
oldcolorpicker = 'matlab.ui.internal.dialog.ColorChooser';
s.matlab.ui.dialog.uisetcolor.ControllerName.TemporaryValue = oldcolorpicker;
Today, again I searched and I found this command which was giving access to property inspectors:
s = settings
s.matlab.web.LightweightBrowserDefaultType.PersonalValue = 'cef';
However, despite the successful execution of the command and the fact that property inspectors could be used, soon after I started having plenty of issues. Matlab became unresponsive. And following errors were shown on terminal :
Segmentation fault (core dumped)
or
[0406/180945.377663:WARNING:stack_trace_posix.cc(626)] Failed to open file: /tmp/jna--1081292729/jna223269650053268758.tmp (deleted)
Error: No such file or directory
or
[0406/161426.961453:WARNING:stack_trace_posix.cc(626)] Failed to open file: /tmp/jna--1081292729/jna5850602593361995881.tmp (deleted)
Error: No such file or directory
[0406/161427.116862:ERROR:sandbox_linux.cc(343)] InitializeSandbox() called with multiple threads in process gpu-process.
[0406/161427.712723:ERROR:cert_verify_proc_nss.cc(918)] CERT_PKIXVerifyCert for localhost failed err=-8179
[0406/161518.492328:ERROR:object_proxy.cc(583)] Failed to call method: org.gnome.SessionManager.Inhibit: object_path= /org/gnome/SessionManager: org.gnome.SessionManager.GeneralError: Application ID not specified
[0406/161518.492349:ERROR:power_save_blocker_x11.cc(335)] No response to Inhibit() request!
[0406/161548.659507:ERROR:object_proxy.cc(583)] Failed to call method:
org.gnome.SessionManager.Uninhibit: object_path= /org/gnome/SessionManager: org.gnome.SessionManager.GeneralError: Unable to uninhibit: Invalid cookie
[0406/161548.659585:ERROR:power_save_blocker_x11.cc(407)] No response to Uninhibit() request!
[0406/161618.692303:ERROR:object_proxy.cc(583)] Failed to call method:
So, the question is how to fix this problem.
Thanks in advance for your help,
Regards,
Mary
  1 Comment
mary
mary on 6 Apr 2021
The only way that I can make Matlab working for one hour is to go to /usr/local/MATLAB/R2019a/bin and execute activate_matlab.sh !!!!

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