Use `xdpyinfo` instead of `xrandr` to poll for display readiness
Use `xdpyinfo` instead of `xrandr` to poll for display readiness

Signed-off-by: Steve Kuznetsov <a7da0fca91d9933d2725d731a48cabdc9e8ffd7a@redhat.com>

openshift/origin-web-console,openshift/origin-web-console,openshift/origin-web-console,openshift/origin-web-console