Comment # 3 on bug 1172370 from Felix Miata (offline until ???)

Much better:
# rpm -qa | grep arand
arandr-0.1.10-lp152.19.1.noarch
# arandr

(arandr:1481): Gdk-CRITICAL **: 05:26:47.371: gdk_atom_intern: assertion
'atom_name != NULL' failed

(arandr:1481): Gdk-CRITICAL **: 05:26:47.371: gdk_atom_intern: assertion
'atom_name != NULL' failed
#

Note I didn't have two displays connected for this test, but at least it opens.