winex11.drv: Use the default frequency in ChangeDisplaySettingsExW() …

…if dmDisplayFrequency is 1.

0 or 1 in dmDisplayFrequency means to use the default frequency.

Fix Disgaea PC and Ostriv failing to launch in exclusive fullscreen mode.

Signed-off-by: Zhiyi Zhang <zzhang@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dlls/user32/tests/monitor.c

@@ -448,7 +448,6 @@ static void test_ChangeDisplaySettingsEx(void)
         dm.dmDisplayFrequency = vid_modes_test[i].freq;
         dm.dmFields           = vid_modes_test[i].fields;
         res = ChangeDisplaySettingsExA(NULL, &dm, NULL, CDS_TEST, NULL);
-        todo_wine_if(i == 2)
         ok(vid_modes_test[i].must_succeed ?
            (res == DISP_CHANGE_SUCCESSFUL || res == DISP_CHANGE_RESTART) :
            (res == DISP_CHANGE_SUCCESSFUL || res == DISP_CHANGE_RESTART ||

dlls/winex11.drv/settings.c

@@ -420,7 +420,7 @@ LONG CDECL X11DRV_ChangeDisplaySettingsEx( LPCWSTR devname, LPDEVMODEW devmode,
                 continue;
         }
         if ((devmode->dmFields & DM_DISPLAYFREQUENCY) && (dd_modes[i].refresh_rate != 0) &&
-            devmode->dmDisplayFrequency != 0)
+            devmode->dmDisplayFrequency != 0 && devmode->dmDisplayFrequency != 1)
         {
             if (devmode->dmDisplayFrequency != dd_modes[i].refresh_rate)
                 continue;