Two display captures show exactly the same since V29

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BobR

New Member
So far I have run OBS for 2 years without this issue, but since the last update (V29.0.2).

I have 2 monitors/displays, where I show in my Scenes the display that is not having OBS on it. But no matter which display I select, it only shows the content if the display where OBS is running on.
Is there a setting I missed out on or is this broken? At the moment I can't use OBS due to this... :-(

1675787845071.png
 
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AaronD

Active Member
Your screenshot shows what one monitor looks like. What about the other? I know you say it's the same, but it's hard to believe without that proof, given most of the other new-user posts on here. :-/
 
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BobR

New Member
OK, for the ones that want to have prove, please find below the 2 screenshots where you see at the arrows the selection of the 2 displays I have:
1675793468336.png


Screenshot 2:

1675793488870.png
 
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AaronD

Active Member
BobR said:
OK, for the ones that want to have prove, please find below the 2 screenshots where you see at the arrows the selection of the 2 displays I have:
View attachment 91454

Screenshot 2:

View attachment 91455
Click to expand...
Just noticed something. You have a "Desktop share" folder above the "Desktop" source. What's in there?

There's also a "Webcam Logi" in between, which I assumed to be your selfie in the corner, but if the "Desktop share" covers everything and *that's* what we're looking at, then that might be your problem.
 
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BobR

New Member
AaronD said:
Just noticed something. You have a "Desktop share" folder above the "Desktop" source. What's in there?

There's also a "Webcam Logi" in between, which I assumed to be your selfie in the corner, but if the "Desktop share" covers everything and *that's* what we're looking at, then that might be your problem.
Click to expand...
That is the "folder" it sits into. This way you can easily enable a group of items. I have this working already since 3 years and never had an issue.
Just to give it a shot, I added a brand new scene trying to add the screen only and it had exactly the same issue.
 
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R1CH

Forum Admin
Developer
BobR said:
A monitor driver in OBS? Perhaps I am missing something, but I'm not getting what you want me to try :-)
Click to expand...
The issue happens because OBS isn't able to query the monitor's unique ID, so falls back to model name. In your case you have two identical models, so bad things result. I'm wondering if installing the manufacturer's driver helps fix the unique ID issue.
 
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AaronD

Active Member
BobR said:
That is the "folder" it sits into. This way you can easily enable a group of items. I have this working already since 3 years and never had an issue.
Just to give it a shot, I added a brand new scene trying to add the screen only and it had exactly the same issue.
Click to expand...
I think it's acting independently. It always should have. Maybe that's a bug that was finally fixed and you came to rely on the bug for your normal operation?

But if a new scene with just that one source only, still does the same thing, then it's not that.

R1CH said:
Have you tried installing the monitor driver? Curious if this fixes the problem.

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24" SR350 Bezel-less LED Monitor | Samsung Support Singapore

24" SR350 Bezel-less LED Monitor. Solutions & Tips, Download Manual, Contact Us. Samsung Support Singapore
www.samsung.com www.samsung.com
Click to expand...
BobR said:
A monitor driver in OBS? Perhaps I am missing something, but I'm not getting what you want me to try :-)
Click to expand...
You would install that in Windows, outside of OBS, so that when OBS asks Windows for a particular monitor, Windows can give it the right one.
 
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BobR

New Member
I installed the monitor driver, but that didn't resolve anything. It could perhaps be the issue that my monitors are of the same type and so they have the same name (which I can't change due to permissions). They both start with the same witn the same until the "@" sign.
Also here, so far in the last 3 years, no problems, only now since the update. I realize things can be changed, but this makes my OBS simply useless to work with.
I have no clue yet how to resolve this.
 
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AaronD

Active Member
If a previous version worked, you might try rolling back to it:
github.com

Releases · obsproject/obs-studio

OBS Studio - Free and open source software for live streaming and screen recording - obsproject/obs-studio
github.com github.com
(expand the Assets section at the end of each section, to download its installer)

If you're feeling extra helpful, you could install and test all of them in turn to see where the break happened, and report that here so the devs can compare those two versions. (that also gets you the latest version that works) Keep in mind that from v27 to v28 is a major change that breaks a lot of things, so you might not want to cross that boundary unless you have to.
 
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R1CH

Forum Admin
Developer
We know why the break happened - we switched to using the unique ID instead of the numerical index (which is subject to change depending on the order monitors are connected). But for some reason the unique ID fails on certain monitors.
 
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AaronD

Active Member
R1CH said:
We know why the break happened - we switched to using the unique ID instead of the numerical index (which is subject to change depending on the order monitors are connected). But for some reason the unique ID fails on certain monitors.
Click to expand...
Okay. Is there a way in the new version to use the numerical index? Yes, it might have to be rearranged manually from time to time, but working *at all* is still preferable to not working.
 
B

BobR

New Member
AaronD said:
If a previous version worked, you might try rolling back to it:
github.com

Releases · obsproject/obs-studio

OBS Studio - Free and open source software for live streaming and screen recording - obsproject/obs-studio
github.com github.com
(expand the Assets section at the end of each section, to download its installer)

If you're feeling extra helpful, you could install and test all of them in turn to see where the break happened, and report that here so the devs can compare those two versions. (that also gets you the latest version that works) Keep in mind that from v27 to v28 is a major change that breaks a lot of things, so you might not want to cross that boundary unless you have to.
Click to expand...
I have looked up the release notes from the versions and came to the conclusion that this potentially have changed in V29 (it lists several things about displays). I moved back to V28.1.2 and the issue is resolved. For now at least my presentation do work again, so for the short term resolved, but obviously I would love to go to the latest version. If I can help to resolve it by supplying information/testing or whatsoever, please do let me know.

Thanks for the help so far!!! really appreciated.
 
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