[Luchario]

Well,

I can confirm that neither HDMI repeater that I used fixed the problem. I will contact Marseille about this again and see what they say…

[Luchario]

Hi corkerss,

Actually, just searched my email and did find a reply from Marseille from about a couple weeks ago.

This was the reply:

“When the jitter coming from the source accumulated large enough which TV cannot receive, you will see flashing on TV.
From the test result you have done, looks like…
1. When OSSC output 480p, it generate large jitter,
2. When it go thru HDMI Switch, the jitter get increase
3. Then mClassic upscale from 480p to 1080p, the jitter become too big that TV cannot tolerant.

The solution is to try different HDMI switch, or use a HDMI repeater which can clean up the signal and remove the jitter.
https://www.bestbuy.com/site/insignia-hdmi-cable-repeater-black/6324285.p?skuId=6324285&ref=212&loc=1&extStoreId=142&ref=212&loc=1&gclid=CjwKCAjwh7H7BRBBEiwAPXjadm1ITnNK5UyQuzfwCWdRp1R3hmTvvxqwle5lN6V99W1J0kcgDxO3JRoCYscQAvD_BwE&gclsrc=aw.ds”

That being a link to BestBuy’s Insignia Cable Repeater. I guess I’ll try it and give it a shot to see if it works. I’ll report back with whatever results I get…

I may also try a CableMatters repeater, it’s about $10 cheaper (on Amazon) and I believe they make good quality accessories most of the time.

[Luchario]

Hi corkerss,

Unfortunately, I didn’t get any follow-up from Marseille for this particular issue. I’m still having the same issue for the Wii, though my PS2 through SCART seems to work fine (although I’ve played PS1 games mostly, not PS2. Then again the SNES is also 240p so it should be the same situation, unless the Hz are the problem). For the Wii I’ve just ended up connecting the mClassic directly to the OSSC whenever I do use it and then just move it back to the Switcher for everything else.

I’ve found the issue works even in “off” or “passthrough” mode for the mClassic so I’m assuming the signal being passed through is still being chopped up for some reason. Since Marseille can’t update the mClassic (no firmware updates are possible) I think we may just have to wait for an updated version of the mClassic, maybe one that supports HDMI 2. Though, this is also an assumption on my part, thinking that maybe the issue is the HDMI 1.4 of the mClassic.

Not sure what else to do…

Please let me know if you think of anything else.

Thanks!

[Luchario]

Yeah, that’s what I ended up doing for the meantime. I did contact their tech support and this is what they messaged back:

“Sorry you’re having problems with your setup. We see this problem occasionally happening when there is a non HDMI certified device, and/or a non HDMI 2.0 rated HDMI switch. Non HDMI certified devices tend to produce more signal jitter than certified HDMI devices, and low rated HDMI switches exacerbate the problem further. And when the mClassic upgrades the picture to a higher resolution, it increases the TV’s sensitivity to jitter. Using low quality or cables with internal damage can also create jitter in the signal, but it sounds like that’s unlikely.

In conclusion, I’d recommend trying another TV to see if it’s the TV that’s just very sensitive to jitter. (Samsung TVs seem to be the most sensitive to signal noise).
And which HDMI switch are you using?”

I wrote back with my setup a few days ago and now again with the information that DVI mode works but I’m still waiting for a reply.

Thanks for the help so far, I appreciate it!

[Luchario]

Actually, just tried switching between HDMI (RGB) TX mode w/o audio input and DVI mode and I don’t think that’s the issue. I’m guessing it’s just a data transfer issue or maybe how HDMI transmits the signal vs DVI.

I’m pretty certain the issue is the mClassic, but if it’s not maybe it’s the cables? I’m not sure if that is the case since I’m already using 4k@60 18gbps cables, but would 48gbps cables actually make a difference here or is it most likely just an issue with how the mClassic interprets the OSSC signal coming through the HDMI Switch?

Even when I have the mClassic in passthru mode (technically should be off) it still has this issue.

[Luchario]

Hey!

Thanks, that seems to make the video work fine. I’m guessing because it’s DVI mode audio does not passthru anymore though. Was the audio passthru the issue then or is there something else in DVI mode that lets the video work well?

[Luchario]

I’m using the following:

TV – Hisense 55H8F 4K TV
HDMI Switchers – Kinivo 550BN 5×1 4K@60 HDMI Switch and a Monoprice Blackbird 4K Pro 4×1 HDMI 2.0 Switch
Soundbar – I’m using a Samsung – 4.1-Channel 240W Soundbar System but the TV connects to it directly, there’s no passthrough from the switcher to the soundbar.

I’ve tried connecting the HDMI cable into both a regular HDMI port as well as the ARC port of the TV.

I don’t have anything connected to the Soundbar as I just have a digital in from the TV and all HDMI ports connect to the TV directly.

I’m not sure what you mean by HDMI/DVI mode. I have tried connecting the OSSC directly to the TV using HDMI if that’s what you mean.

Thanks!

[Author]

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