HDR Playback too dark?

[bernd_b]

I tried the playback of a HDR file, and I got the same problem as here in the windows section or here in the macos section:
Playback is fine, but seems to be too dark. Adding a filter breaks performance limit on my G4560 Intel HDGraphics 610.

Here is a log file of the playback of a sample:
https://controlc.com/b822e0ea