showing an error when running javaFx application

Question

I am running a javaFx application. When I click on some buttons it show the following error:

Can't create transparent stage, because your screen doesn't support alpha channel. You need to enable XComposite extension.

I am not able to find the problem. I almost spent an hour but still no output. Please help.

Thanks on advance!

stackoverflow.com/questions/13936573/javafx-crashes-x-server — gliptak
– gliptak, Commented Jun 28, 2014 at 15:35

Sergei Grinev · Accepted Answer · 2013-09-29 11:49:42Z

3

It's a known issue for Linux systems without XComposite extension installed: https://javafx-jira.kenai.com/browse/RT-19700

Unfortunately you need to install XCompoiste extension to work with JavaFX applications using transparency.

answered Sep 29, 2013 at 11:49

Sergei Grinev

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2 Comments

Hi Sergey, how could I install XComposite extension? Actually I don't know much about Linux OS.

xcompmgr might support this. For Ubuntu, this is at packages.ubuntu.com/trusty/xcompmgr