Re: failure with a gstreamer plugin

On Tue, Jun 11, 2019 at 11:54 AM Vera Tsogli <Barbara.Tsogli@...> wrote:
>
> Hi Mario,
>
> Thank you for your response.
> It was not possible to answer to you from inside the forum platform because whenever I was pressing the SEND button I was getting the message: "Could not send the message". I apologise for this.
>

Yeah, the Yahoogroups forum software is awful, it does that
frequently, requiring you to patiently retry often. It went downhill
over the years -- shiny design, incompetent implementation, almost as
if it was made by Apple...

> Here are the answers to your questions.
>

Ok, if you installed from us via DownloadPsychtoolbox, and that long
ago, you probably missed the advice to do this after installation of
Matlab, in a terminal:

sudo apt install matlab-support

It's a software package meant to work around Matlab specific
compatibility problems, due to the way Mathworks unfortunately bundles
their own version of system libraries, which forcefully override the
system libraries of the operating system, and at the same time are so
outdated that they remove some needed functionality. This is a problem
on all operating systems, but causes different symptoms of failure. If
you install the matlab-support package it will ask you some questions,
most importantly if it should fix Matlab issues by renaming some
libraries, to which you should "YES" as an answer. After restarting
Matlab, the problem should be hopefully gone. I observe the same error
messages/failures on R2019a iff i don't run the matlab-support
package.

Hope it helps,
-mario

> 1. Linux version:
> Linux version 4.15.0-51-generic (buildd@lgw01-amd64-059) (gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #55-Ubuntu SMP Wed May 15 14:27:21 UTC 2019
>
> 2. Linux distribution:
> DISTRIB_ID=Ubuntu
> DISTRIB_RELEASE=18.04
> DISTRIB_CODENAME=bionic
> DISTRIB_DESCRIPTION="Ubuntu 18.04.2 LTS"
> NAME="Ubuntu"
> VERSION="18.04.2 LTS (Bionic Beaver)"
> ID=ubuntu
> ID_LIKE=debian
> PRETTY_NAME="Ubuntu 18.04.2 LTS"
> VERSION_ID="18.04"
>
> 3. Matlab: R2016b
>
> 4. Psychtoolbox download: I did it 2 years ago so I think I did it with DownloadPsychtoolbox.m because I found it in my Downloads folder.
>
> Thank you very much for your time! :)
>