lib/StartXDummy.pm: document why we use -config /dev/null

2011-11-07 23:07:08 +00:00 · 2011-11-07 23:07:08 +00:00 · bf12befd6d
parent afc488021f
commit bf12befd6d
1 changed files with 3 additions and 0 deletions
--- a/testcases/lib/StartXDummy.pm
+++ b/testcases/lib/StartXDummy.pm
@ -54,6 +54,9 @@ sub start_xdummy {
            # Child, close stdout/stderr, then start Xdummy.
            POSIX::close(0);
            POSIX::close(2);
+            # We use -config /dev/null to prevent Xdummy from using the system
+            # Xorg configuration. The tests should be independant from the
+            # actual system X configuration.
            exec './Xdummy', ":$displaynum", '-config', '/dev/null';
            exit 1;
        }