# Blank screen and unstable image switch in Balena install with rPi4

**URL:** <https://forums.screenly.io/t/blank-screen-and-unstable-image-switch-in-balena-install-with-rpi4/896>\
**Category:** Anthias\
**Created:** [November 26, 2022, 11:30am UTC](https://forums.screenly.io/t/blank-screen-and-unstable-image-switch-in-balena-install-with-rpi4/896 "2022-11-26T11:30:53Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![lfcipriani](https://avatars.discourse-cdn.com/v4/letter/l/e9bcb4/32.png) [@lfcipriani](https://forums.screenly.io/u/lfcipriani)\
**Post date:** [November 26, 2022, 11:30am UTC](https://forums.screenly.io/t/blank-screen-and-unstable-image-switch-in-balena-install-with-rpi4/896/1 "2022-11-26T11:30:53Z")

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Hi,

I just setup an install of Screenly OSE in Balena using a rPi4:

- Balena supervisor: 14.4.4
- rPi4 (64bit)
- balena push was done docker-compose.balena.yml using latest-pi4 tag

The setup worked fine from a software perspective, I can access the settings page using the public or local URL, upload the assets, define the schedule and the logs in balena are clean (even with debug mode enabled):

```auto
 srly-ose-viewer Current url is /data/screenly_assets/cd2ca76f06334a388e75a6dbfc741d62.png
 srly-ose-viewer Sleeping for 10
 srly-ose-viewer Showing asset getready.png (image)
 srly-ose-viewer Current url is /data/screenly_assets/51d5f0f15dd944c3b4382a682b4b0fce.png
 srly-ose-viewer Sleeping for 10
 srly-ose-viewer Showing asset makeyourowrkout.png (image)
 srly-ose-viewer Current url is /data/screenly_assets/cb260bd524454c39b96df37f512d6cbb.png
 srly-ose-viewer Sleeping for 10
 srly-ose-viewer Showing asset plans.png (image)
 srly-ose-viewer Current url is /data/screenly_assets/cd2ca76f06334a388e75a6dbfc741d62.png
 srly-ose-viewer Sleeping for 10
 srly-ose-viewer Showing asset getready.png (image)
 srly-ose-viewer Current url is /data/screenly_assets/51d5f0f15dd944c3b4382a682b4b0fce.png
 srly-ose-viewer Sleeping for 10

```

However, the problem is that the display of images is very inconsistent. Sometimes the display show the image, sometimes show a blank screen, sometimes the image is too stretched and partially loaded. Webpages always show a blank screen instead of the pages. I tried with different TVs and the behavior is the same.

Is there anything I could do to debug this problem better?  
Do the assets used needs to have specific formats or size? (I’m using pngs)

Thank you!

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**Author:** ![ealmonte32](https://yyz1.discourse-cdn.com/flex029/user_avatar/forums.screenly.io/ealmonte32/32/228_2.png) [@ealmonte32](https://forums.screenly.io/u/ealmonte32)\
**Post date:** [November 28, 2022, 5:35pm UTC](https://forums.screenly.io/t/blank-screen-and-unstable-image-switch-in-balena-install-with-rpi4/896/2 "2022-11-28T17:35:58Z")

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Can you try making the time the asset is active longer? try 60 seconds each, again just for testing purposes.

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**Author:** ![lfcipriani](https://avatars.discourse-cdn.com/v4/letter/l/e9bcb4/32.png) [@lfcipriani](https://forums.screenly.io/u/lfcipriani)\
**Post date:** [November 29, 2022, 8:05am UTC](https://forums.screenly.io/t/blank-screen-and-unstable-image-switch-in-balena-install-with-rpi4/896/3 "2022-11-29T08:05:48Z")

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Hi,

Yes, I’ve set 60 secs and also tried setting only one asset only and the problem still persists.

One time I tested 2 webpages, one very lightweight (no images) and a landing page of my company. Only the lightweight one worked.

Thank you

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<div class="post-metadata">

**Author:** ![ealmonte32](https://yyz1.discourse-cdn.com/flex029/user_avatar/forums.screenly.io/ealmonte32/32/228_2.png) [@ealmonte32](https://forums.screenly.io/u/ealmonte32)\
**Post date:** [November 30, 2022, 4:38am UTC](https://forums.screenly.io/t/blank-screen-and-unstable-image-switch-in-balena-install-with-rpi4/896/4 "2022-11-30T04:38:40Z")

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Sorry since I know there is some work being done on balena side, I wont comment any further, I would suggest if possible, install screenly via bash script on a raspbian bullseye lite image, it should work perfectly fine.

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<div class="post-metadata">

**Author:** ![lfcipriani](https://avatars.discourse-cdn.com/v4/letter/l/e9bcb4/32.png) [@lfcipriani](https://forums.screenly.io/u/lfcipriani)\
**Post date:** [November 30, 2022, 8:09am UTC](https://forums.screenly.io/t/blank-screen-and-unstable-image-switch-in-balena-install-with-rpi4/896/5 "2022-11-30T08:09:35Z")

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Fair enough, thanks for your response. I’ll try without balena.