Remote Live View URL displays Desktop only

KCG

I have always used the live view remote endpoint (http://<IP address:4316>/main), to send the projected view to OBS or other screens. Lately however, I have noticed that this endpoint only shows the Desktop rather than the live view. The Stage View and Chord View are fine but not the Main View.
I have attached a screenshot below which I hope sheds some light on the problem. On the left of the image, the OpenLP interface shows content being sent live. The green arrow points to the Stage View showing the content correctly in a browser whilst the red arrow point to another browser displaying the Main View which only shows the Desktop. Were it working correctly, both browsers would be showing the live content (as used to happen in the past).
I would be glad if someone could help me understand why this is happening. Thank you all.

KCG

UPDATE
I have just tried the same configuration as in the screenshot above on Linux Mint and it works flawlessly. The Main URL displays the Live View. The problem therefore seems to be a Windows one.

witterholt

Hi, I could not reproduce your issue on Windows with OpenLP 3.1.7 and Web Remote 1.2.6.

Neither with a PDF presentation:

Do you see any errors in the console of the browser showing the desktop (opens up by pressing ctrl-shift-i)?

KCG

Thanks for coming back Chris. I am having no such luck. This is what is in the Network tab

I noticed you used localhost rather than the verbose URL so I gave that a go. Things look slightly different with the padlock but it still shows the desktop rather than the live view.

witterholt

KCG not the network but the console tab.

KCG

There is nothing at all in the console. It is blank

witterholt

Ok, in that case I don't know what causes this behaviour. Maybe you can try it on a different Windows computer.

KCG

That's really bizarre. I have tried on four different Windows machines (two at church and two at home) and the results are exactly the same.

PaulRowell

KCG
I may have seen something like this when I was messing around with different display settings. My extended desktop is set to be a lower resolution than the actual screen is capable of so that I could use a scale of 100%. It may have nothing to do with it but what are your display settings for the extended desktop monitor?

KCG

Hello @PaulRowell , you're really onto something here!! My resolution was set to 1680 x 1050. After reading your comment, I switched it to 1920 x 1080 and boom, the browser main view began to work!!! I have experimented with other resolutions like 1280 x 1024, 1280 x 720 - all of which work too. Not sure why 1680 x 1050 doesn't.
At least now I have got a workaround and I am really grateful. God bless you all.

KCG

Hello, unfortunately the main view failed to work at church today when I tried. I initially had the laptop set to 1920 x 1200 and the extended monitor set to 1920 x 1080. When that failed to work, I set them both to 1920 x 1080 which made no difference either.

One thing I do find strange is that, sometimes though my Windows display settings are exactly the same as those in OpenLP, for both laptop and monitor, I still get a warning message when starting OpenLP saying they are different. That cannot be right can it?

Could it be that the OpenLP main view URL does not recognise certain resolutions?

PaulRowell

I'm wondering if it has something to do with the scale factor too?

I only get that message if the settings don't match the current configuration AND I haven't been in to Settings before exiting.

PaulRowell

The other thing that might be a factor is the settings in Advanced these are my settings:

KCG

Hello Paul , thanks for coming back. My scale factor is set to 100% and I changed my Advanced settings to match yours above but not much has changed.
I think the issue has to do with monitor resolution because I have just hooked up my laptop to two monitors with different resolutions as shown in the screenshot below:

Screen 1 (my laptop) is 1920 x 1200 and the other two screens (2 & 3) are 1680 x 1050 and 1920 x 1080 respectively.
I have just tried setting each one of these in turn to be used as the display, and the only time, without fail, that the Main View URL works is when set to Screen 3 (1920 x 1080). When the other screens with the "odd" resolutions are used, the URL just displays the desktop. I am guessing the OpenLP Main View endpoint isn't able to handle these "odd" resolutions and it would be interesting to get a developer's take on this rather interesting behaviour.

PaulRowell

We use the Full HD resolution so that would explain why we don't see this issue. Perhaps @witterholt can comment?

PaulRowell

I've just experimented with several different resolutions and in all cases the Main view remote mirrored the display and didn't show the desktop. The only time I see the desktop is if I force that through the live display buttons,

KCG

Thanks for your efforts, Paul. I guess I just have to live with it. How the Stage and Chord view work but not the Main view is baffling.

Jamie Hockin

For what it's worth, when trying to troubleshoot an issue with capturing OpenLP video in OBS, I tried a browser view with localhost:4316:main and got the desktop. I know that's not how to get video into OBS, but I was just playing around. We have three screens (intel iMac 2550x1440, monitor 1600x1200 and projector 1920x1080). I haven't taken the time to figure this out because my problem was getting to see the video. Apparently on a Mac, that's problematic on OS 12.x. We now use a Display capture source which works (except for ... but that's for another post sometime). I just wanted to let you know you aren't alone, @KCG