Based on my observations, it appears the LG TV may have limitations when displaying Power BI content that relies on user authentication to retrieve and present data. Does anyone have deeper insights into this issue that they could share? Additionally, would using a BrightSign device connected to the LG TV—rather than leveraging the LG AppSpace interface directly—enable proper display of this content? I would like to hear what other are experiencing seeing that we have been dealing with this for over a month.
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Power BI Dashboard not loading that uses User Authentication to pull the information to be displayed on an LG TV
Best answer by Amber Housley
I wanted to note: The default screenshot services has a 15 second timeout. I’ve seen customers experience issues if the Power BI dashboard snapshot takes longer than the 15 second default before the dashboard is fully loaded.
I checked with our AI assistant “KIRBY” and for Brightsigns you can modify the screenshot delay by editing the card's configuration.
Here's how:
1. Download and unzip the Power BI card
2. Find the model.json file
3. Change the liveThumbnailScreenshotDelay value to 30000 (that's 30 seconds)
4. Rezip the card (careful not to zip at the root folder)
5. Upload the updated card back to your library
Reminder: The card needs to be re-created in order to reflect the timeout changes
For Tizen devices, the same 15-second screenshot timeout applies, but unfortunately you can't modify the delay like you can with BrightSign devices. There's a direct Power BI card available that doesn't use the screenshot service - this might work better for Tizen if your Power BI dashboard needs more than 15 seconds to load.
Hello
I have a few Power-BI displays setup using the Power-BI card.
I am curious about the user authentication part of the question.
In my setups, I had to create a portal. That portal used an account to access the published Power-BI Dashboard.
I created a “AppSpace/Power-BI” service account for the portal to support the dashboards I need to display.
To refresh the data, I set up regular intervals for data refresh on the Power-BI tool.
All the Power-BI card ever did was show the dashboard. I don’t recall the card needing any user credentials other than the Portal.
Are you set up in a similar way?
We are currently using the Power BI dashboard card with Power BI Passport authentication. I attempted to render this on a BrightSign device using my home network but was unsuccessful. I suspect the issue may be related to authentication, as these dashboards were created by our Sweden location rather than by me.
I plan to test this at one of our other facilities where Power BI dashboards are successfully running on BrightSign devices. AppSpace support believes the limitation might be with the LG TV, but we have not confirmed that yet.
I wanted to reach out to see if anyone else has encountered a similar issue or has any insights.
Thanks.
Are you using a On-Prem power-BI server vs a could based one?
that could alter the way data is accessed.
If the card is pulling screenshots, the question is, where are the screenshots taken.
If they are captured by AppSpace on a remote server, there may be a security issue with the AppSpace server opening the Power-BI dashboard on an on-Prem server.
I have several reports that pull data directly from on-prem systems. They are all WWW-Cards. But they will only work on hardware connected to the local network. If I tried to display the same cards offsite the URL crashes. When I try to preview the cards in the AppSpace webpage, or use the device emulator for troubleshooting, the cards that require on-Prem access to data sources always fail.
Maybe the screenshot process is causing a similar issue.
The out of the box Power BI Card will only work with Power BI on the cloud, so it’d be good to verify if you’re using on-prem or cloud. Additionally, the Power BI Passport uses the permissions of the Microsoft user you used to create it, so if your Microsoft/Power BI account doesn’t have access to those dashboards out of Sweden then the Appspace Card won’t either. Thanks for all the details, hopefully we can narrow down on the issue!
I wanted to note: The default screenshot services has a 15 second timeout. I’ve seen customers experience issues if the Power BI dashboard snapshot takes longer than the 15 second default before the dashboard is fully loaded.
I checked with our AI assistant “KIRBY” and for Brightsigns you can modify the screenshot delay by editing the card's configuration.
Here's how:
1. Download and unzip the Power BI card
2. Find the model.json file
3. Change the liveThumbnailScreenshotDelay value to 30000 (that's 30 seconds)
4. Rezip the card (careful not to zip at the root folder)
5. Upload the updated card back to your library
Reminder: The card needs to be re-created in order to reflect the timeout changes
For Tizen devices, the same 15-second screenshot timeout applies, but unfortunately you can't modify the delay like you can with BrightSign devices. There's a direct Power BI card available that doesn't use the screenshot service - this might work better for Tizen if your Power BI dashboard needs more than 15 seconds to load.
We are strictly using Private Cloud. I think they re-created the Dashboard as mentioned here, and it is still having issues loading properly, It sounds like as I thought the BrightSign may be the way to go, instead of trying to replace the LG TV.
WKK_Mike We have the Power BI Portal setup; it is just that the information they are pulling for some reason was prompting for a sign in for the content to load even within our preview when looking at it in AppSpace. Again, thanks for the input. I am looking for any possible way to help them, get this resolved.
Just a thought. Is it possible to be trying to display too many Web cards in a Power BI dashboard? I feel like in the preview everything looks okay, but on the TV it is having an issue due to the timeouts, or the network not being bale to load everything which is why we are seeing a prompt for the Sign in on the TV. I tried this on a Samsung TV at another location today and saw the same thing. I’m wondering if they simplify this if it would display and not get hung up on the sing -in part which should not even show, considering that it is not showing that when looking at it in preview mode in AppSpace private cloud.
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