I solved this problem (PS 1.6.1.7) in \controllers\front\ManufacturerController.php → function assignAll() (near end of file).
There was IF statement with PS_DISPLAY_SUPPLIERS:
if (Configuration::get('PS_DISPLAY_SUPPLIERS')) {
$data = Manufacturer::getManufacturers(false, $this->context->language->id, true, false, false, false);
$nbProducts = count($data);
$this->n = abs((int)Tools::getValue('n', Configuration::get('PS_PRODUCTS_PER_PAGE')));
$this->p = abs((int)Tools::getValue('p', 1));
$data = Manufacturer::getManufacturers(true, $this->context->language->id, true, $this->p, $this->n, false);
$this->pagination($nbProducts);
foreach ($data as &$item) {
$item['image'] = (!file_exists(_PS_MANU_IMG_DIR_.$item['id_manufacturer'].'-'.ImageType::getFormatedName('medium').'.jpg')) ? $this->context->language->iso_code.'-default' : $item['id_manufacturer'];
}
$this->context->smarty->assign(array(
'pages_nb' => ceil($nbProducts / (int)$this->n),
'nbManufacturers' => $nbProducts,
'mediumSize' => Image::getSize(ImageType::getFormatedName('medium')),
'manufacturers' => $data,
'add_prod_display' => Configuration::get('PS_ATTRIBUTE_CATEGORY_DISPLAY')
));
} else {
$this->context->smarty->assign('nbManufacturers', 0);
}
I just added || 1==1 like this:
if (Configuration::get('PS_DISPLAY_SUPPLIERS') || 1==1) {