DT darkroom much darker than export and lightable view, input/output profiles OK

Just in case someone has a good hint, will try new GPU driver etc,

Everything is fine on desktop at home, but on the road now with my laptop with a fresh DT 3.8.1 install at all default config. (wiped appdata and program files folders and reinstalled)

The Darkroom view is much darker than both export and Lightable view. Input and output profiles are at default (Rec2020 linear working, sRGB output). And everything else default. But whatever i do export gets much much brighter. The histogram vs ho wit looks in Darkroom looks correct. But a finnished edit will be exported overexposed. The exported image matches Lightable view.

Lightable view does change when i process in Darkroom, but albeit much brighter

Only remote thing i can thing of now is leftovers somewhere from when i ran dev builds? Or GPU driver?

And here you can see the export matches Lightable view

OpenCL on? Intel? Looks like windows os?

Open CL on, windows 10, AMD ryzen, Nvidia 3080.

Just updated the latest nvidia studio driver, deleted config files and db files (Deleted the appdata/local directory. Still same.

Latest nightly build same, and same with or without openCL.

Im at a loss haha, must be something weird/corner issue on my laptop. Darkroom a few stops darker than lightable and export whatever i do.

Very strange. Any style being applied at export?

Maybe share the raw + xmp plus the exported image.

No styles whatsoever. I dont really use styles. Here is another image for good measure. I do suspect however its not reproducible on other installs. I dont have access to it now, but i do not have this issue on my desktop at home. Also it was working fine last year when i was on a roadtrip on dt 3.6 on this laptop. Very weird. I’ll probably do a format/win resinstall when i get home
2022_norway_1.zip (35.2 MB)

This is how i see the one i just uploaded

I’m not at home at the moment and only on the cellphone. It is Easter. I doubt i will have time to sit in front of the PC today. I will try to look at it later.

Morrn, @Tore_Valberg!

Looks fine here :frowning: (although using Linux).
Please: what settings do you have for

  • system display profile?
  • preview display profile?
  • histogram profile?

Have fun!
Claes i Lund, Sverige

Dont worry about it, I will also drop it for now and just process when i get home from this trip :slight_smile:

Pretty sure it must be “local” to my laptop. Happens to all images.

I was going to suggest that your preview might be on an integrated GPU and your full preview on your 3080 or the reverse but I’m not sure if you have that hardware combo??

That is a good suggestion, it does have a radeon Igpu, but I have it disabled in bios. Just checked again to be sure,

To add to the mystery, i just wiped the laptop and completely reinstalled windows 10 and drivers. And its still the same :expressionless:

Now i have no clue what it could be. Last year it worked fine

Ok, if i enable soft-proofing then the views match. I see the laptop has X-rite preinstalled with some profiles. But weirdly all set to SRGB also created a matching view. But without softproofing on, it gets dark.

This shot was taken with very bright sky, and now ive only added exposure to bring the histogram in check, But highlights are overexposed and shadows very lifted.

How can I “Sync” this to also make the histogram usable?

Its all set to sRGB
image

Ok I sort of fixed it.

But is this correct behavior?

After i set the Display Profile in Soft-proofing to sRGB instead of “System Display Profile”. The views and exports match regardless if soft-proofing is enabled or not??

Now if i set Display Profile back to “System Display Profile”, and turn off soft-proofing the problem is back.

Is this expected?

Windows photo viewer is not color managed and by default on light table you’re looking at the embedded jpeg.

Well… Do you really have a System display profile registered? If not that will point at… nothing.

I would set the histogram profile to rec2020…this is all you care about violating and it will feed values to the color pickers…the output profile will map things to srgb or whatever you need…Keep softproofing off so it is not part of the equations. Now specify your display profile…create a folder in your config directory called /color/in and copy any potential display profiles there. Now you can try each one and find out which one is the culprit…It sounds like you have some issue with the profiles…I suspect its the xrite ones…I tried to use them with DT and they are always way too dark…

Yes, X-rite is setting the system profile. And it was the x-rite profiles causing the issue.

I am aware, but once you start processing its showing the processed file. Ive been using DT for a few years.

Yes, its definitely the x-rite profiles that was causing this. Thanks for the tips :+1:

Problem is sorted