Bug Report Added second monitor, OBS now crashes upon startup

crexxus

New Member
I just installed a second monitor and with it a second video card and drivers, but now when I open up OBS it instantly crashes. I haven't tried reinstalling OBS yet, I want to save the scenes etc I have already if I can help it. This is a log not running as administrator, but the same crash happens when running as administrator is true as well.
 

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  • 2017-02-22 10-29-19.txt
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crexxus

New Member
I... did? The second monitor is on the second GPU and the first monitor is on a different gpu. They work and I have the dual monitor setup working.
 

Sapiens

Forum Moderator
Connect them both to the primary GPU. You'll cause nothing but problems trying to run them separately.
 

crexxus

New Member
The primary gpu is an r9 280x but it only has dvi and hdmi slot, and the second monitor is connected with VGA. I need the second card, an HD 6770, because it has the VGA port so that the monitor can connect.
 

Fenrir

Forum Admin
The primary gpu is an r9 280x but it only has dvi and hdmi slot, and the second monitor is connected with VGA. I need the second card, an HD 6770, because it has the VGA port so that the monitor can connect.

From your log, it looks like it's the AMD AMF plugin that's causing the crash, likely because of the monitors across multiple GPUs. This setup is a nightmare for any programs trying to do any capturing. It sounds like you should get a VGA to HDMI/DVI adapter, or just remove the second monitor as it's only going to cause you problems configured that way.
 

crexxus

New Member
Okay cool, thanks for actually breaking it down, Fenrir.

For your guys' information, after a little bit of experimentation it seems that an older version of OBS seems to work, but the newest version of OBS Studio does not. I'll get a VGA to HDMI adapter so I can run both monitors off the one r9 280, but for now it seems that with an older version of OBS, I can use the two GPU setup. It's definitely a little wonky, but until I can buy the adapter I think I can make it work.
 

Fenrir

Forum Admin
Okay cool, thanks for actually breaking it down, Fenrir.

For your guys' information, after a little bit of experimentation it seems that an older version of OBS seems to work, but the newest version of OBS Studio does not. I'll get a VGA to HDMI adapter so I can run both monitors off the one r9 280, but for now it seems that with an older version of OBS, I can use the two GPU setup. It's definitely a little wonky, but until I can buy the adapter I think I can make it work.

What version did you go back to? And can you get us a crashlog from the latest version? Happy to pass it along if there's an actual bug in OBS.

Press WinKey+R or go to Start > Search and type %APPDATA%\obs-studio\crashes. The contents can be copied to https://gist.github.com/ and then linked here.
 

Fenrir

Forum Admin
Oh, also make sure your GPU drivers are up to date, as that's where the crash appears to be coming from.
 

crexxus

New Member
I went back to using 0.659b 64 bit. It's not as inuitive or easy to use as the modern Studio version, but it still works.

I don't know if I did it correctly, but this is what I got https://gist.github.com/anonymous/569406e4fa07fe461a2d624020227723

If the GPU drivers are the issue that wouldn't surprise me at all. It was pretty annoying getting the drivers for the hd 6670 and I'm still not certain if they over-wrote the drivers that I had installed for the 280x

edit: I just went and looked and it seems that's exactly what happened. The drivers for the 280x and the 6670 are both apparently from 8/3/2015 which is clearly not ideal.

Using the Radeon Settings application I can see that the 280x is still set as my primary device and the 6670 is Enabled

I'm going to try to re-update the software for the 280x and see if I can preserve the driver for the 6670 and see if I can then run OBS studio
 
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Fenrir

Forum Admin
Try the latest version of OBS Studio, you're on quite an old version at this point, which has an outdated AMF plugin that could have been fixed in the latest.
 

crexxus

New Member
Okay I seem to be getting some headway here. I just installed the most up to date driver for the 280x, from 2/10/2017, and it has actually deactivated my second monitor and the second graphics card -- which now apparently has NO drivers installed for it, now.

It seems to be that the driver for the 6670, installed through the Catalyst installer, is forward compatible with the 280x, allowing me to use both monitors, but does not work with OBS studio. With the new 280x driver installed, I am once again able to use OBS studio, but it is apparently -not- backwards compatible with the 6670, causing it to have no driver and thusly my second display does not appear.

I think if I am able to have the updated driver for the 280x as well as the 'old' driver for the 6670 I would be able to have access to both monitors AND be able to use OBS studio, unfortunately I don't know how to do that or if it is even possible.
 

crexxus

New Member
I just tried to update OBS studio to 17.0.2 but I'm getting "error opening file for writing: e:\obs-studio]bin\64bit\Qt5Core.dll

-- Nevermind. I just downloaded the full version, not the installer, and now I have it able to run. But it's having some problems, for instance now my webcam doesn't seem to be working with this version but I'm still only 5 minutes into having it installed so there's some more experimenting to do.
 
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Fenrir

Forum Admin
I just tried to update OBS studio to 17.0.2 but I'm getting "error opening file for writing: e:\obs-studio]bin\64bit\Qt5Core.dll

That means OBS is still open, make sure it's closed before updating. If you don't see the window open, check task manager and close any open processes.
 

crexxus

New Member
I have 17.0.2 installed now, and it has sucessfully transferred my sources etc from the version I was using before, however now it doesn't have the audio input from my webcam (which is the microphone I use)

And still, since I am running the most up-to-date driver for the 280x, my second monitor is still black and there are no compatible drivers installed for the 6670.
 

crexxus

New Member
It just needed a good old reboot. Now the device captures audio and video just like it originally did.

But now, the core issue remains -- I still have no driver for my second GPU and my second monitor is still dark. I'm going to try reinstalling the Catalyst-era drivers for the 6670 without overwriting the Present-day drivers that I have for the 280x, although I'm not certain if that's even possible.
 
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