Try some more

libhandy.spec

@@ -64,6 +64,8 @@ developing applications that use %{name}.
 
 
 %check
+# No parallel test runs to try to avoid overwhellming Xvfb on some platforms
+%define _smp_build_ncpus 1
 %{shrink:xvfb-run -w 10 -d %meson_test}