I copied Daphne 0.99 exact the same from an older EL installation and wanted to try it with current EL version.
I only get black screens.
I tried different settings, nothing helps.
Many others have problems with daphne and black screens.
I found only one possiblesolution:
To remove "-nohwaccel" parameter at start.
Does EL use this param.?
Is there a known issue with EL and Daphne start parameters?