modesetting: make drmmode_get_smallest_supported_cursor return at least 64x64

If we initialize the hardware cursor image with a size smaller that 64x64,
be get an incorrect cursor image.

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

Author: stefan11111

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

@@ -4834,7 +4834,8 @@ drmmode_get_smallest_supported_cursor(ScrnInfoPtr pScrn, uint32_t *owidth, uint3
 {
     xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
 
-    drmmode_cursor_dim_rec max_size = {.width = 0, .height = 0};
+    /* We need the cursor image to be at least 64x64 */
+    drmmode_cursor_dim_rec max_size = {.width = 64, .height = 64};
 
     for (int i = 0; i < xf86_config->num_crtc; i++) {
         xf86CrtcPtr crtc = xf86_config->crtc[i];