App-Crash Dominant Color on all Leds

[brutez]

• I confirm that this is an issue rather than a question.

Bug report

1. Choosing Image processing option: dominant Color - all Leds leads to App-crash on windows 11 with nvidia gpu

2. After App-restart you need to disable and enable main led instances to stop flickering

3. Every other processing option works without crashing.

4. flickering happens with every processing option after a restart. to stop it re-enabling main instances works

i thought a new Issue would clean up the responses to old/closed issue

@Lord-Grey investigated crashing more, it has to do with the new dominant color option. I tried every other
image processing option. Crashing only happens when dominant color (simple) is choosen.

Originally posted by @brutez in #1853

Steps to reproduce

start hyperion, set image processing to dominant color on all leds, save settings and restart, open any app with gpu usage.

What is expected?

app saves new option and keeps running
led instances doesnt flicker after restart

What is actually happening?

App-Crash after setting processiong to dominant color on all led after a little while on desktop or immediately after starting any app with gpu usage

System

Hyperion Server:

• Build: Paulchen-Panther-3e8dd9f/d852717-1751752843
• Build time: Jul 6 2025 00:25:42
• Build type: Release
• Git Remote: https://github.com/hyperion-project/hyperion.ng
• Version: 2.1.2-beta.1+nightly20250706
• UI Lang: de (BrowserLang: de-DE)
• UI Access: expert
• Avail Screen Cap.: qt,dda
• Avail Video Cap.: v4l2
• Avail Audio Cap.: audio
• Avail Services: boblight,effectengine,forwarder,flatbuffer,protobuffer,mDNS,SSDP,borderdetection
• Config database: C:/Users/aschr/.hyperion/db/hyperion.db
• Database: read/write
• Mode: GUI

Hyperion Server OS:

• Distribution: Windows 6.1
• Architecture: x86_64
• Kernel: winnt (6.1.7600 (WS: 64))
• Root/Admin: false
• Qt Version: 6.8.3
• Python Version: 3.13.3
• Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36

[Lord-Grey]

@brutez Thanks for sharing the finding and ring-fencing the issue.
Would you mind sharing your configuration, please?
Just export it from the UI.

You can ping it to me via a PM on Discord or via the Hyperion Forum.

Edit: Sorry, I missed that you cannot export the config via the UI when Hyperion failed :)

You can export the configuration via commandline too. See https://docs.hyperion-project.org/user/advanced/CLI.html

[brutez]

@Lord-Grey

HyperionBackup-2025-07-26_v2.1.2-beta.1+nightly20250706.json

i just uploaded it here. its still the same as the other issued config. it runs two instances (1.Main Monitor ambilight and 2. desk with dominant color on all leds). Both driven by wled. the sec. instance is build out of three segments (handled as one).

Dominant color on all leds never really worked for me. it does what it should colorwise but crashes after a short time in use.