Geogebra hang when changing to 3D Graphics

Grobe shared this question 5 years ago

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


Laptop name: Dell latitude D620

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


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).


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


When Geogebra hangs:


Comments (4)


Does it work in Chrome?


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


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 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?


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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