Skip to main content

Psychopy builder running silently but not working

 Recently I started to use the psychopy builder version in linux ubuntu version 18.04. After learning how to use psychopy as a python library, I needed to use it as a software with builder version. Now after writing the builder test, when I tried to run it, it didn't run without any error.I went through a painstaking procedure to solve this and that's why I am writing this post about how I solved it. Enough of prologue, let's dig in to the solutions possible.


Solution no 1:

One of the reason this issue occur is that the psychopy builder version gets confused with the graphic cards. The solution of this issue is in details and variations mentioned in this github issue thread. But if you want to avoid going through it, here is the solution mentioned there:

First of all, search for /etc/X11/xorg.conf.d/20-intel.conf

Now if you have this file, then that is good. Put this following content inside the file. 

Section "Device"
    Identifier "Intel Graphics"
    Driver "intel"
EndSection

 Then save and restart your machine. That should solve this problem properly. Now, there are a few hiccups possibly in this road. 

If you search for the above file, then this file may not be present in your pc; just like it was not in mine. In that case, if you need, you have to create the directory using mkdir xorg-conf.d command. This will create the directory. After that, you will have to open the file using 

sudo vi 20-intel.conf and then enter the same content as above; finally saving it by writing :wq! 

Now, it is possible that the problem still continues even after doing this. In such a case, it maybe is a ramp related issue; or something else.

Let's check if it is a ramp problem first. In case of ramp, it is a pyglet and psychopy clash. In such a case, find psychopy/psychopy/visual/backends/gamma.py and hardcode the rampsize to be 1024 instead of 0. 

If you don't have that or even if you do rampsize correction you can't solve it; then you have to uninstall psychtoolbox.

In such a case, the python crashes as total and a GC object detected twice error occurs. In such a case, the keyboard object creates the problem as the keyboard fetches psychtoolbox and psychopy both calls the python garbage caller. While all this is complicated, the solution is very simple though. 

Just uninstall the psychtoolbox i.e.

pip3 uninstall psychtoolbox

Now this solved the problem for me; and if this is not the end point for you, comment below and let's see your code to solve the new issue. 

Thanks for reading and I am glad if I could help you!

Labels:

Comments

Post a Comment

Popular posts from this blog

Mastering SQL for Data Science: Top SQL Interview Questions by Experience Level

Introduction: SQL (Structured Query Language) is a cornerstone of data manipulation and querying in data science. SQL technical rounds are designed to assess a candidate’s ability to work with databases, retrieve, and manipulate data efficiently. This guide provides a comprehensive list of SQL interview questions segmented by experience level—beginner, intermediate, and experienced. For each level, you'll find key questions designed to evaluate the candidate’s proficiency in SQL and their ability to solve data-related problems. The difficulty increases as the experience level rises, and the final section will guide you on how to prepare effectively for these rounds. Beginner (0-2 Years of Experience) At this stage, candidates are expected to know the basics of SQL, common commands, and elementary data manipulation. What is SQL? Explain its importance in data science. Hint: Think about querying, relational databases, and data manipulation. What is the difference between WHERE ...
Post a Comment
Read more

What is Bort?

 Introduction: Bort, is the new and more optimized version of BERT; which came out this october from amazon science. I came to know about it today while parsing amazon science's news on facebook about bort. So Bort is the newest addition to the long list of great LM models with extra-ordinary achievements.  Why is Bort important? Bort, is a model of 5.5% effective and 16% total size of the original BERT model; and is 20x faster than BERT, while being able to surpass the BERT model in 20 out of 23 tasks; to quote the abstract of the paper,  ' it obtains performance improvements of between 0 . 3% and 31%, absolute, with respect to BERT-large, on multiple public natural language understanding (NLU) benchmarks. ' So what made this achievement possible? The main idea behind creation of Bort is to go beyond the shallow depth of weight pruning, connection deletion or merely factoring the NN into different matrix factorizations and thus distilling it. While methods like know...
Post a Comment
Read more

Spacy errors and their solutions

 Introduction: There are a bunch of errors in spacy, which never makes sense until you get to the depth of it. In this post, we will analyze the attribute error E046 and why it occurs. (1) AttributeError: [E046] Can't retrieve unregistered extension attribute 'tag_name'. Did you forget to call the set_extension method? Let's first understand what the error means on superficial level. There is a tag_name extension in your code. i.e. from a doc object, probably you are calling doc._.tag_name. But spacy suggests to you that probably you forgot to call the set_extension method. So what to do from here? The problem in hand is that your extension is not created where it should have been created. Now in general this means that your pipeline is incorrect at some level.  So how should you solve it? Look into the pipeline of your spacy language object. Chances are that the pipeline component which creates the extension is not included in the pipeline. To check the pipe eleme...
Post a Comment
Read more