Override the VAAPI driver env if i965 device is known

MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs

@@ -714,6 +714,9 @@ namespace MediaBrowser.Controller.MediaEncoding
                 }
                 else if (_mediaEncoder.IsVaapiDeviceInteli965)
                 {
+                    // Only override i965 since it has lower priority than iHD in libva lookup.
+                    Environment.SetEnvironmentVariable("LIBVA_DRIVER_NAME", "i965");
+                    Environment.SetEnvironmentVariable("LIBVA_DRIVER_NAME_JELLYFIN", "i965");
                     args.Append(GetVaapiDeviceArgs(null, "i965", null, VaapiAlias));
                 }
                 else