Your post does not seem to make clear what the issue is.
At which occasions does Photoshop "default to grayscale"?
Ok your comment halped me, i forgot there is an option in Create new document to chose mode, it for some reason swithced to Grayscale,
but the second issue still persists, each time i open image that contains only b/w it switches mode to Grayscale, which makes me go and manually
switch it back, because the other software in pipeline requires any image to be rgb, and that would be ok to make it manually on ocassion and
not when i have hundreds of textures alphas etc to work with on daily basis.
but the second issue still persists, each time i open image that contains only b/w it switches mode to Grayscale
You seem to be mistaken, if an image is a grayscale image Photoshop opens it as such, it does not "switch" it to some Color Mode it does not originally have (unless you have set up a somewhat complex routine with Script Events Manager – which you probably have not) so your claim of having to "switch it back" is likely counterfactual.
If you want to automate converting grayscale images to RGB you could use conditional Actions or Scripts.
Which could be applied via Batch, Image Processor or linked to the Open Event with Script Events Manager.
Ok got it, thanks.
Photoshop does that. If it sees a colorless image in the clipboard your File - New dialog will default to Grayscale with the Clipboard preset.
Exactly i usually copy backed maps between soft using buffer and PS assumes i need grayscale, do i have to create script to fix this annoyance?
Or i can just tell it to completely stop switching it when i dont ask him to?
I don't know of any way to stop that behavior through a configuration option.
It's not a problem I've tried to solve, but I an familiar with the behavior as I spent some time creating an action for myself that loads my clipboard into a new document (I have it assigned to my F13 key). In my case I've not found it important that the document always be RGB, though.
It's possible the action could be modified to add an Image - Mode - RGB step after the document creation, but that could lead to color inaccuracies unless you have both your grayscale and color default working spaces set to profiles with the same gamma. I may experiment some with it.
Here's my current action (without any attempt to make the document RGB) if it can help you at all:
I don't have a lot of experience with setting up scripts to handle events but that does sound like another potential avenue for success. Someone with more scripting experience than I have will need to help you further that solution.