Sticky – Essential OSSC Resources – Check before asking for support!

Home Forums OSSC OSSC – Discussion and support Sticky – Essential OSSC Resources – Check before asking for support!

This topic contains 8 replies, has 8 voices, and was last updated by  nmalinoski 6 months, 3 weeks ago.

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    Before posting a technical support request here, please be sure to check the following resources.

    There’s a quick start guide for new OSSC users here.

    Extensive information on using the OSSC is available on the Wiki page here.

    Keep up to date with everything OSSC by subscribing to our newsletter here.

    You can also join the Telegram channel here.



    Also, when writing about potential compatibility/sync issues, please include as much information about your setup as possible, including answers to following questions:

    * Which console model (US/JP/EU, model number) is in question, and does it have some mods?
    * Which type of AV cable is used with the console?
    * Is that AV cable directly connected to OSSC (which AV input?), or are there some devices such as switches on the way?
    * Which display is used, and is OSSC output directly connected to it?
    * Does OSSC show sync information on its character display, and is red LED turned off? If sync info is shown, please include that in your report along with details from info screen (accessed by pressing INFO on the remote).



    Is it just me, or is the XRGB Wiki page blank all of the sudden? I’m seeing this across every device and browser I’ve tried.



    Nope, wasn’t just you, but this has been fixed now.



    Sorry… posted a wrong link…



    Hi, turning OSSC on displays the gray scale test screen as 31.5kHz 60Hz 720×480 (those details are from the PC monitor diagnostics). When turning AV1 on (megadrive 2 RGB Euroscart CSYNC from retro game cables) OSSC AV1 is green, RGBS 262p 15.55kHz 49.69Hz, or with the megadrive’s NTSC mod on, the AV1 is 15.55kHz 59.36Hz. In both cases the PC monitor reports ‘not optimum mode. Reccomended mode 1920×1080 60Hz.

    Is there a way to up the Hz to 60Hz? Im assuming this my problem. The monitor does not have an option to change from 60Hz.

    Or any other thoughts? (samsung c23a550u)



    You should make a separate thread instead of asking here. In any case: no the vertical refresh cannot be adjusted by OSSC, what comes in is the same that goes out.

    Looking at the manual, it seems this monitor will always reports this “not optimum mode” screen three times, if the resolution is not standard 1920×1080.

    It is quite unusual for a PC monitor to not accept off-spec refresh rates, however in this case it might have more to do with incompatibility at the level of 480p signal only.
    What you can do is try to adjust output into one of the other VESA formats, such as 1024×768 (use Lx3) or 1280×1024 (use Lx4). The procedure is described here:



    You should also know, that a real “NTSC mod” on the Mega Drive is more then just cutting a trace and installing a switch. Pal Megadrives are different and won’t run with the correct refresh rate when running in NTSC mode.



    The xrgb wiki is broken. Been this way for at least a couple days now. :/

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