OSSC Pro sync issue with HDFury 3 in CRT output mode

[ackmangogo]

Hi,

I’m encountering a sync issue when using the OSSC Pro in Scaler mode together with an HDFury 3.

Setup:

OSSC Pro in Scaler mode
Output connected to HDFury 3
Analog display connected to HDFury (via VGA / component)

Issue:
When selecting CRT output mode on the OSSC Pro, the display loses sync (no signal / unstable image).
However, when switching the OSSC Pro to DFP output mode, the signal is stable and works correctly through the same HDFury 3 setup.

Additional notes:

Same cables and hardware are used in both cases
Only the OSSC Pro output mode is changed
HDFury 3 DIP settings remain unchanged
Sync loss occurs immediately when switching to CRT mode

[BuckoA51]

What signal are you processing through the OSSC Pro, or is it happening just with the test pattern?

[marqs]

Also, which CRT output mode you have selected?

[ackmangogo]

From xbox360 and TV box, both tested from 480p and 720p.

Source -> ossc pro hdmi in -> hdfury3(component) -> bvm d20

A-LM output 480i and 480p works. 240p lost sync.

Scaler mode output:

DFP: 480p and 720p works.

CRT: tried 240p, 480i, 480p, lost sync.

 

[marqs]

Maybe HDFury3 does not support the CRT modes which have high horizontal rate.

[Steve]

I use a similar setup and my HDFury3 seems to cope just fine with whatever the OSSC Pro sends to it. I have the OSSC Pro feeding it generally 480i output which then goes from the HDFury3 into my PVM. I can try and remember to confirm what the DIP settings are on my HDF3 in case they matter if you’d like but I generally find it to be rock solid.

 

[BuckoA51]

Just tested and no issue here with HD Fury 3 and Mitsubishi Megaview, with an Xbox Series S and OSSC Pro in adaptive line multiplier mode and scaler mode (CRT) downscaling from 720p to 240p. Using RGB output rather than component though.

[Author]

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