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static char *manufacturer_name(unsigned char *x)

{

    static char name[4];

    name[0] = ((x[0] & 0x7C) >> 2) + '@';

    name[1] = ((x[0] & 0x03) << 3) + ((x[1] & 0xE0) >> 5) + '@';

    name[2] = (x[1] & 0x1F) + '@';

    name[3] = 0;

    return name;

}

bool set_mode(struct drm_device *dev, int width, int height)

{

    struct drm_connector *connector;

    bool   ret;

    ENTRY();

    list_for_each_entry(connector, &dev->mode_config.connector_list, head)

    {

        struct drm_display_mode *mode;

        struct drm_encoder  *encoder;

        struct drm_crtc     *crtc;

        if( connector->status != connector_status_connected)

            continue;

        encoder = connector->encoder;

        if( encoder == NULL)

            continue;

        crtc = encoder->crtc;

        if(crtc == NULL)

            continue;

        list_for_each_entry(mode, &connector->modes, head)

        {

            char *con_name, *enc_name;

            struct drm_framebuffer *fb;

            if (drm_mode_width(mode) == width &&

                drm_mode_height(mode) == height)

            {

                char con_edid[128];

                fb = list_first_entry(&dev->mode_config.fb_kernel_list,

                                      struct drm_framebuffer, filp_head);

                memcpy(con_edid, connector->edid_blob_ptr->data, 128);

                dbgprintf("Manufacturer: %s Model %x Serial Number %u\n",

                manufacturer_name(con_edid + 0x08),

                (unsigned short)(con_edid[0x0A] + (con_edid[0x0B] << 8)),

                (unsigned int)(con_edid[0x0C] + (con_edid[0x0D] << 8)

                    + (con_edid[0x0E] << 16) + (con_edid[0x0F] << 24)));

                con_name = drm_get_connector_name(connector);

                enc_name = drm_get_encoder_name(encoder);

                dbgprintf("set mode %d %d connector %s encoder %s\n",

                           width, height, con_name, enc_name);

                fb->width = width;

                fb->height = height;

                fb->pitch = radeon_align_pitch(dev->dev_private, width, 32)

                            * ((32 + 1) / 8);

                crtc->fb = fb;

                ret = drm_crtc_helper_set_mode(crtc, mode, 0, 0, fb);

                sysSetScreen(width,height);

                if (ret == true)

                {

                }

                else

                {

                    DRM_ERROR("failed to set mode %d_%d on crtc %p\n",

                               width, height, crtc);

                };

                return ret;

            };

        }

    };

    return false;

};