My take.
L1000608-1.jpg.out.pp3 (25.0 KB)
Well, yes. Iâm not familiar with dtâs print module as Iâm on Windows where it doesnât exist⌠but I assumed that dt would print it as edited, if you have edited it.
@rvietor does that mean that you have to export to be able to print? I had thought that the print module would take the darkroom output even if you donât export.
Edit: Apart from any possible confusion with this bit, if the printed result is still darker, there could be a printer profile issue? Although I would thought that would affect dngs and jpgs the same anywayâŚ
I like the image. On what looks like a cold grey skied day, you managed to keep some definition in the sky. Poss a touch of contrast would be nice, but to be honest I suspect it will print well just as it is.
Just a crop to centralise the subject and remove the woman and the bikes on the right which I think may be distracting. That maybe just me though 
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This is a strange design. I can develop the RAW file, I can also see what I changed in it - I have the image in front of my eyes. But to print it as I see it, I have to take a detour by exporting the file first. Because if I give the print command, darktable could not know that I want to print the image as I see it right now. Instead of darktable generating the image on the fly temporarily, I must do this manually? Sorry, this is not a smooth workflow in my eyes. Thatâs obscure.
Sorry, I forgot about the print module (not having a printer capable of printing photo quality).
Unfortunately, that module isnât available under MS-Windows (as dt delegates the actual printing to the CUPS system, which isnât available under windows).
I do know (from experienceâŚ) that an image on screen appears brighter than the printed version of the same image.
Several reasons for that:
- Your screen emits light, a print only reflects light. So the dynamic range of the screen is larger (~10 EV vs ~7 EV).
- And this is exaggerated when the screen is set too bright, which is often the case (esp. with a new screen that hasnât been set up correctly yet).
But if you have a capable printer attached and you can use the print view within dt, dt does know the edits you applied when you go to the print module, as those are stored. As far as I know, you cannot print from the darkroom viewâŚ
You can use the âPrintâ tab, unless youâre on windows then you have to export because windows has its own print system, while macOS and the *nixs share an open source print system.
I know I can use the âprintâ tab. This brings me back to the start: why differ printed raw files from what I can see on the screen? I use DNG+JPEG as camera setup, so I have two identical pictures, jpeg prints OK, raw is way too dark and flat. I feel lost 
Have you edited the dng file at all?
sure