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PS2 240p RGB doesn't work

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This topic contains 10 replies, has 4 voices, and was last updated by  PPLToast 1 month, 2 weeks ago.

Viewing 11 posts - 1 through 11 (of 11 total)
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  • #12091

    PPLToast
    Participant

    I’m using a PS2 for PS1 games with a sync on luma RGB cable which works just fine for PS2 games (and its disgustingly small 480p PAL supported games) The OSSC display shows 314p but nothing on the my TV itself which is a Panasonic TX-L32C20E. I thought my TV didn’t work with line double, so I checked with a Mega Drive which does work (though not in line triple ;_;).

    Any clue if there’s some setting tweak that might get it to work?

    #12096

    marqs
    Participant

    PAL PS1 games are incompatible with some displays that have strict tolerance.

    #12097

    PPLToast
    Participant

    Damn I had just stumbled upon that page earlier, but missed the PS1 part. Ah well.

    #12138

    Soren47
    Participant

    I just got PAL PS1 games working on my Panasonic 50 inch by doing this that Cleeg mm the shmups forum suggested:

    I increased Vertical active to 300 in advanced 288p timing.

    #12139

    Soren47
    Participant

    Unfortunately, on my TV at least, a small bit of the lower part of the screen can’t be seen. I can’t get the picture further up.

    #12156

    PPLToast
    Participant

    HUGE HUGE thanks Soren (and cleeg), I can confirm setting V active to 299 fixes this issue for me perfectly on the TX-L32C20E. No screen cutoff either from what I can tell.

    #12159

    Trixster
    Participant

    Likewise, 300 has fixed the pal ps1 issue I was seeing with my Panasonic GT50 plasma, and backporch 26 recentres the picture vertically. Nice one!

    #13213

    Soren47
    Participant

    Just updated to 0.77 and now PS1 games in 314P line double doesn’t work for me anymore.

    I tried the same fix as mentioned above, but now it doesn’t work.

    In advanced 288p timing settings for version 0.76, these settings work:
    V. Active 300
    H. Active 720
    H synclen 60
    H sample rate 864
    V backporch 15
    H backporch 65

    I tried doing the same settings on 0.77. This didn’t work either.
    My tv is the Panasonic TX-50CS630E.

    Anyone have any tips?

    For now, I’ve reverted to 0.76.

    #13216

    marqs
    Participant

    The setting above are somewhat invalid (v.active + v.backporch > 314) so it’s more or less a coincidence it works with the older firmware. With 0.77, you might want try keeping V.active at 300 but setting V.backporch and V.synclen so that they are less than 14 combined.

    #14835

    Trixster
    Participant

    I’ve just updated to 0.78 after installing the sound module and have encountered the same issue – pal PS1 will no longer show on my Panasonic plasma.

    Did anyone ever resolve this issue? What’s the reason 0.76 worked and 0.77/78 now don’t?

    #14900

    PPLToast
    Participant

    Yeah, I can confirm it stopped working for me too. I tried some of marqs’s suggested tweaks above but they didn’t seem to work either. Pretty annoying, but I think it might be better to buy a new monitor than try to fix this, because there’s just gonna be more issues down the road I’d presume.

    But yeah, reverting is probably the best option for now unless some setting tweak to change the behavior on .77/8 to the .76 one is somehow possible.

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