Hello, since day one with my PI2B I faced the following problem:
Everytime I play a 24p (by 24p I mean 23.976fps) video - e.g. a bluray rip - on my BenQ TH682ST the Beamer looses the connection for a split second resulting in a 3-5s black screen to reconnect to the hdmi signal (beamer sided). This happens a few seconds after the movie starts playing for the first time and two times for the the following 1-2 minutes. After the third "blackout" there is no issues for the rest of the movie at all. When I pause and resume the movie the blackouts reappear (3 times after each pause with comparable timings).
This never happened with 25p, 30p and 60p videos and my Samsung TV doesn't loose the connection either.
At this point you might think the problem is the BenQ beamer but the strange thing is that I can eliminate the issue by turning the "auto video refresh rate" feature completely off. Everything is running smoothly when refresh rate is locked to 24 Hz in Rasplex. Of course I can manually switch to the appropriate refresh rate every time I start a movie at the cost of comfort but I am not willing to give up on that issue without at least trying. Maybe some has an advice what I can try to fix this issue?
Rasplex and PMS are up2date and I am using a wired connection.
What I tried so far:
- "auto refreshrate feature" to "at start/stop" --> no difference to "always"
- force video transcode @10Mbit
- enable/disable vertical blank sync
- pause movie immediately at start for a minute
- checked cache (seems to work properly; filled up to 100MB)
- multiple hdmi cables short/long with and without timing correction
- local playback from WDTV Live Hub (has a auto refresh rate feature as well) --> no blackouts with the BenQ Beamer!
My thoughts:
I think Rasplex might struggle to find the correct refresh rate and switches between 23.976 and 24p what causes the hdmi connection to reset resulting in the beamer to reinitiate the connection (3-5s blackout is normal for this Beamer when changing source). The Samsung has probably a better handling when the signal changes so there is no interruption noticeable (my theory). That said, setting "auto framerate feature" to "at start/stop" should have fixed the issue in my opinion, but it doesn't.
My approach (which I can't realize without help):
I would like to disable 23.976Hz or 24Hz refresh rate completely so it cannot be used by the auto refreshrate feature and see if that makes any difference. Can this be done easily in a config file?
Do you have any other suggestions?