Geogebra hang when changing to 3D Graphics

Grobe shared this question 2 years ago
Answered

Geogebra version 6.414.0-offline (19 december 2017)


OS: Linux Lite v. 3.6


cat /proc/version
Linux version 4.4.0-105-generic (buildd@lgw01-amd64-060) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.5) ) #128-Ubuntu SMP Thu Dec 14 12:42:11 UTC 2017

Hardare:

Laptop name: Dell latitude D620

CPU: Intel(R) Core(TM)2 CPU T5500 @ 1.66GHz

RAM: 3 GB


Problem description / how to reproduce:

- Start Geogebra blank.

- Wait until ready

- Change perspective to "3D graphics"


Result: Geogebra stop to respond. Cannot close Geogebra in normal way (as it doesn't respond).


[edit]

I can use pkill GeoGebra to terminate process. I got a question wheter to save - don't know if that is Geogebra asking or pkill.


More info: After i try to cange to "3D graphics", Geogebra and the rest of the system behaves as if one process used all avaiable CPU - that is all programs that is currently open responds very slow, takes several seconds from I try to get a window to get focus until it actual does responds. That applies to any open application that is open in same time as GeoGebra is in this no-respond mode.


[edit 2]

Is GeoGebra supposed to spawn that many processes?


when Idle - started blank

[url=http://i.imgur.com/e84tOVC....;


When Geogebra hangs:

[url=http://i.imgur.com/EdUKF2O....;

Comments (4)

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1

Does it work in Chrome?

https://www.geogebra.org/3d

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1

Work just fine, use Chromium (Version 63.0.3239.84 (Official Build) Built on Ubuntu , running on Ubuntu 16.04 (64-bit) )

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1

Also for me, running GeoGebra Classic (Version 6.0.592.0) on Linux Ubuntu 18.04 LTS, when in 3D mode, is pretty much impossible. I tried some very simple stuff, like creating some points and drawing some planes through them. However, doing exactly the same stuff in the online version https://www.geogebra.org/3d in Chrome works without issues.

Assuming the GeoGebra app uses Chrome internally to run the same interface, why would the app experience be so different?

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1

GeoGebra for Linux (64bit) is currently using Electron 6.1 which is based on Chromium 76.

Maybe you can check if there is a difference between running GeoGebra in the latest Chrome and an older version?


Also the offline version of GeoGebra ignores GPU blacklist by default, you can check if

geogebra-classic --forcegpu=false

makes any difference (expected: with a good graphics card it should make no difference, with a bad one 3D should not start at all, but maybe it's more complicated than that)

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