owocr hangs on "Launching screen coordinate picker" on Arch Linux

[wholesalegerbils]

Hey,

Just installed the new version, it works great. I am able to run the screen capture function by using the screen_capture_area flag (ex: --screen_capture_area="RetroArch"), though it will end up crashing after a bit -- I'll make a separate issue for that.

I've noticed I can't get the screen coordinate picker to run on X11. I checked the discord and it sounds like there might be some issues with Wayland. On X11, however, whenever I try to run it, it will spawn another owocr process that I can see in my task manager, but will never create a coordinate picker window. owocr will hang even if I force close it in the terminal (ctrl+c will say terminated but it will never close it) but I can kill the process using kill -9, though I have to kill both owocr processes.

This is on a Python 3.12 virtualenv, fresh install/environment and new config file running owocr -r=screencapture. I did originally upgrade a previous installation but I foolishly was using the Arch default of Python 3.13 which worked but spat out errors on the previous version and doesn't work at all for the new version.

Let me know if you need any more information.

[AuroraWright]

In screen_coordinate_picker.py just before with Manager() as manager:can you try adding multiprocessing.set_start_method('spawn')? If there's no difference, it's probably a mss issue. Someone on discord got it to work on Wayland by replacing mss with another library, but that's expected since they don't support Wayland yet: BoboTiG/python-mss#155 that's not ideal since that library is unsupported (the readme itself says it's obsolete), and mss is very fast on Windows and macOS. Maybe a separate implementation for Linux, but I'd have to setup a Linux environment just to test it

[AuroraWright]

Also the picker is silent and there's no window on Windows/macOS either, it just shows a fullscreen screenshot you can drag the mouse on, so make sure that's not what is happening here

[wholesalegerbils]

The below is just a snippet showing where I added it, just to make sure I'm doing it correctly. Once I run owocr -r=screencapture`, still no screenshot screen coordinate picker. No full screen screenshot to drag that I can see.

https://pastebin.com/9KUy1m5N
(edit: used pastebin link since code block just kinda ate the formatting up)

To test, just in case I did another fresh install using the following commands on Arch, this was my exact methodology:

~/.pyenv/versions/3.12.3/bin/python3.12 -m venv owocr

source owocr/bin/activate

pip install owocr

owocr -r=screencapture

Honestly, maybe I'm misunderstanding how to trigger the coordinate picker as I tried to trigger it on Windows as well but it also doesn't seem to launch there. In Windows case, it just appears to scan all of screen 1 by default as far as I can tell, but can't get the coordinate picker to run. Just screen_capture_area = in the config blank per the note stating that it can be empty for the coordinate picker, and then launch owocr via owocr -r=screencapture? Here is my config, pretty much the same for the Arch and Windows install. https://pastebin.com/J4ANBJEC

Sorry for the trouble, I'm sure a large element of this is user error!

[AuroraWright]

The below is just a snippet showing where I added it, just to make sure I'm doing it correctly. Once I run owocr -r=screencapture`, still no screenshot screen coordinate picker. No full screen screenshot to drag that I can see.

https://pastebin.com/9KUy1m5N (edit: used pastebin link since code block just kinda ate the formatting up)

To test, just in case I did another fresh install using the following commands on Arch, this was my exact methodology:

~/.pyenv/versions/3.12.3/bin/python3.12 -m venv owocr

source owocr/bin/activate

pip install owocr

owocr -r=screencapture

Honestly, maybe I'm misunderstanding how to trigger the coordinate picker as I tried to trigger it on Windows as well but it also doesn't seem to launch there. In Windows case, it just appears to scan all of screen 1 by default as far as I can tell, but can't get the coordinate picker to run. Just screen_capture_area = in the config blank per the note stating that it can be empty for the coordinate picker, and then launch owocr via owocr -r=screencapture? Here is my config, pretty much the same for the Arch and Windows install. https://pastebin.com/J4ANBJEC

Sorry for the trouble, I'm sure a large element of this is user error!

I think it's probably a misunderstanding then, yeah. I just tested on a windows virtual machine again and it works as it should on a clean 3.13 environment (3.12 also works on macOS)

owo.mp4

[gelbziesel]

Someone on discord got it to work on Wayland by replacing mss with another library

Can you point me to where to find this? Would like to run this on wayland since I usually don't use xorg. (And many distros don't offer xorg out of the box anymore, so it would be helpful to have this somewhere for the linux users?)

[YashaNoos]

Fwiw, -r=screencapture work out of the box on linux mint.