_X_EXPORT void xf86DDCMonitorSet(int scrnIndex, MonPtr Monitor, xf86MonPtr DDC)
{
    DisplayModePtr Modes = NULL, Mode;
    int i, clock;
    Bool have_hsync = FALSE, have_vrefresh = FALSE, have_maxpixclock = FALSE;

    if (!Monitor || !DDC)
        return;

    Monitor->DDC = DDC;

    Monitor->widthmm = 10 * DDC->features.hsize;
    Monitor->heightmm = 10 * DDC->features.vsize;

    /* If this is a digital display, then we can use reduced blanking */
    if (DDC->features.input_type)
        Monitor->reducedblanking = TRUE;
    /* Allow the user to also enable this through config */

    Modes = xf86DDCGetModes(scrnIndex, DDC);

    /* Skip EDID ranges if they were specified in the config file */
    have_hsync = (Monitor->nHsync != 0);
    have_vrefresh = (Monitor->nVrefresh != 0);
    have_maxpixclock = (Monitor->maxPixClock != 0);

    /* Go through the detailed monitor sections */
    for (i = 0; i < DET_TIMINGS; i++) {
        switch (DDC->det_mon[i].type) {
        case DS_RANGES:
        if (!have_hsync) {
        if (!Monitor->nHsync)
            xf86DrvMsg(scrnIndex, X_INFO,
                "Using EDID range info for horizontal sync\n");
        Monitor->hsync[Monitor->nHsync].lo =
            DDC->det_mon[i].section.ranges.min_h;
        Monitor->hsync[Monitor->nHsync].hi =
            DDC->det_mon[i].section.ranges.max_h;
        Monitor->nHsync++;
        } else {
        xf86DrvMsg(scrnIndex, X_INFO,
            "Using hsync ranges from config file\n");
        }

        if (!have_vrefresh) {
        if (!Monitor->nVrefresh)
            xf86DrvMsg(scrnIndex, X_INFO,
                "Using EDID range info for vertical refresh\n");
        Monitor->vrefresh[Monitor->nVrefresh].lo =
            DDC->det_mon[i].section.ranges.min_v;
        Monitor->vrefresh[Monitor->nVrefresh].hi =
            DDC->det_mon[i].section.ranges.max_v;
        Monitor->nVrefresh++;
        } else {
        xf86DrvMsg(scrnIndex, X_INFO,
            "Using vrefresh ranges from config file\n");
        }

        clock = DDC->det_mon[i].section.ranges.max_clock * 1000;
        if (!have_maxpixclock && clock > Monitor->maxPixClock)
        Monitor->maxPixClock = clock;

            break;
        default:
            break;
        }
    }