Hello,

many thanks IOhannes, while using the command :

~~~
# update-alternatives --config gemdefaultwindow.pd
~~~

it seems that my computer was on sdl backend by default :

* 0 /usr/lib/pd/extra/Gem/gemdefaultwindow-sdl.pd 70 mode automatique

I set it up to use glx as default backend and now it's working as expected with or without using nvidia card

++
Benjamin

Le 12/07/2021 à 11:26, IOhannes m zmoelnig a écrit :

On 7/9/21 5:08 PM, Benjamin ~ b01 wrote:

Sorry, I know it's not a Gem problem, glxinfo attached, any hint would
be welcome as I don't really know where to dig

no idea either.

but could you try using different windowing backends?
also install the gem-plugin-[glfw3,glut,sdl] and use the following to interactively change the backend:

~~~
# update-alternatives --config gemdefaultwindow.pd
~~~

fgmdras
IOhannes
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