# QPixmap core dumped **URL:** \ **Category:** Mailing List Archive (read-only)\ **Tags:** list-archive\ **Created:** [April 26, 2020, 8:51pm UTC](https://mne.discourse.group/t/qpixmap-core-dumped/2170 "2020-04-26T20:51:06Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 26, 2020, 8:51pm UTC](https://mne.discourse.group/t/qpixmap-core-dumped/2170/1 "2020-04-26T20:51:06Z")
External Email - Use Caution Dear experts: I am running this script. And I get the error below. [cid:b26c9e16-3a3f-4f54-892f-618563ed9483 at [eurprd03.prod.outlook.com](http://eurprd03.prod.outlook.com)] -------------- next part -------------- An HTML attachment was scrubbed... URL: [http://mail.nmr.mgh.harvard.edu/pipermail/mne\_analysis/attachments/20200426/c6930989/attachment-0001.html](http://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/attachments/20200426/c6930989/attachment-0001.html) -------------- next part -------------- A non-text attachment was scrubbed... Name: 2.png Type: image/png Size: 110600 bytes Desc: 2.png Url : [http://mail.nmr.mgh.harvard.edu/pipermail/mne\_analysis/attachments/20200426/c6930989/attachment-0001.png](http://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/attachments/20200426/c6930989/attachment-0001.png) -------------- next part -------------- A non-text attachment was scrubbed... Name: script.py Type: text/x-python-script Size: 1800 bytes Desc: script.py Url : [http://mail.nmr.mgh.harvard.edu/pipermail/mne\_analysis/attachments/20200426/c6930989/attachment-0001.bin](http://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/attachments/20200426/c6930989/attachment-0001.bin) ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 27, 2020, 7:55am UTC](https://mne.discourse.group/t/qpixmap-core-dumped/2170/2 "2020-04-27T07:55:25Z")
External Email - Use Caution Hi Andrade, what you report is not an MNE issue it's a mayavi issue. you may want to test the pyvista backend in the 0.20 version Alex >         External Email - Use Caution > > Dear experts: > I am running this script. And I get the error below. > > \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ > Mne\_analysis mailing list > Mne\_analysis at nmr.mgh.harvard.edu > [Mne\_analysis Info Page](https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis) -------------- next part -------------- An HTML attachment was scrubbed... URL: [http://mail.nmr.mgh.harvard.edu/pipermail/mne\_analysis/attachments/20200427/890e422e/attachment-0001.html](http://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/attachments/20200427/890e422e/attachment-0001.html) -------------- next part -------------- A non-text attachment was scrubbed... Name: 2.png Type: image/png Size: 110600 bytes Desc: not available Url : [http://mail.nmr.mgh.harvard.edu/pipermail/mne\_analysis/attachments/20200427/890e422e/attachment-0001.png](http://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/attachments/20200427/890e422e/attachment-0001.png) ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 27, 2020, 9:00am UTC](https://mne.discourse.group/t/qpixmap-core-dumped/2170/3 "2020-04-27T09:00:16Z")
External Email - Use Caution Sorry I am so ignorant so many times about this topic. I have installed pyvista but I don't have a clear idea about this. So I might ask few questions. When I run my code. Instead of using mayavi it will use pyvista? Do I have to uninstall mayavi then? Or it will use both? ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [April 29, 2020, 11:30pm UTC](https://mne.discourse.group/t/qpixmap-core-dumped/2170/4 "2020-04-29T23:30:14Z")
External Email - Use Caution You should use this function: [https://mne.tools/stable/generated/mne.viz.set\_3d\_backend.html#mne.viz.set\_3d\_backend](https://mne.tools/stable/generated/mne.viz.set_3d_backend.html#mne.viz.set_3d_backend) No need to uninstall mayavi. You can switch back and forth between the two. Mainak