What Linux OS do I need to use to create and use GTK application?

Technical Support
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1

Hello all,
I’m trying to create and use GTK application in Toradex Colibri IMX6DL, So which OS do I need to install in Toradex Colibri IMX6DL.

Specs:
SOM : Toradex Colibri IMX6DL
Evaluation Board: Colibri Evaluation Board Rev 2.0
and I’m using resistive touch LCD display connected to Generic RGB Display(X20)

2

Hello @Nolan_Maverick , welcome to the community :slight_smile:

You can install Torizon with evaluation containers , and create a container that runs the GTK examples

Which version of GTK are you planning to use, 3 or 4?

Best regards,
Josep

3

Thanks for reply @josep.tx
Can you share relevant resource for Torizon with evaluation containers, I’m using GTK 3
and one more question is don’t we have any Yocto based Image to use, so that I can customize, when necessary? and can’t I use Linux LXDE Image?

4

Hello @Nolan_Maverick,
About your questions:

don’t we have any Yocto based Image to use, so that I can customize, when necessary?

Yes, you can download, customize and build out Yocto based images following the guides of our developer page.

and can’t I use Linux LXDE Image?

If you want to add LXDE support to your image, you can use this layer :
https://layers.openembedded.org/layerindex/branch/master/layer/meta-lxde/

Best regards,
Josep

6

Hello @Nolan_Maverick

Could you please share your Dockerfile?
Have you added ENV DISPLAY=:0 to it?

Best regards,
Josep

7

Hello @josep.tx
Sorry there is mistake in my previous message, I’m able run Debian With Weston Wayland Compositor in IMX6DL, and it is displaying GUI successfully, as shown below

IMG_20230106_133933
IMG_20230106_1339331920×1440 138 KB

Now my problem is Don’t know what is the password for it, to install GTK 3 in weston-terminal.

Please tell me the password, and then I will try to Compile GTK code.

8

Hello @Nolan_Maverick ,
The default password should be torizon . In case you changed it use the one you created.
Can you try running apt-get update without sudo? It should also work

Best regards,
Josep

9

hello @josep.tx
please look this picture I tried but no use

IMG_20230106_151229
IMG_20230106_1512291920×909 56 KB

10

@josep.tx note that password is asking in evaluation container

11

Hello @josep.tx
I followed this small tutorial https://www.youtube.com/watch?v=hwCXSckISXM
while trying to run python script, I’m gettinng this error

root@d7ed33a6cd26:/# python3 /qtdemo.py
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to ‘/tmp/runtime-root’
Dumb buffers not supported
linuxfb: Failed to initialize screen
Segmentation fault (core dumped)

12

Hello @josep.tx
Now I’m able to display GTK screens in Toradex Embedded Linux Demo with LXDE, but still I’m unable to display screens in Torizon containers