modesetting: get gbm device even when not using glamor

Signed-off-by: stefan11111 <[email protected]>

Author: stefan11111

hw/xfree86/drivers/video/modesetting/driver.c

@@ -1951,8 +1951,11 @@ ScreenInit(ScreenPtr pScreen, int argc, char **argv)
         return FALSE;
 
 #ifdef GLAMOR_HAS_GBM
-    if (ms->drmmode.glamor)
+    if (ms->drmmode.glamor) {
         ms->drmmode.gbm = ms->glamor.egl_get_gbm_device(pScreen);
+    } else {
+        ms->drmmode.gbm = gbm_create_device(ms->drmmode.fd);
+    }
 #endif
 
     /* HW dependent - FIXME */