gistfile1.diff

diff --git a/liquidprompt.bash b/liquidprompt.bash
index cad36bd..9d824d3 100644
--- a/liquidprompt.bash
+++ b/liquidprompt.bash
@@ -87,7 +87,7 @@ __user()
     # if user is not root
     if [ "$EUID" -ne "0" ] ; then
         # if user is not login user
-        if [[ ${USER} != $(logname) ]]; then
+        if [[ ${USER} != $(id -nu) ]]; then
             user="${LIGHT_GREY}\u${NO_COL}"
         else
             user="\u"

Beware, id does not gives the user that logged in (and that's what we want in this prompt) if you use sudo:

[nojhan:~] $ logname
nojhan
[nojhan:~] $ id -nu
nojhan
[nojhan:~] $ sudo logname
nojhan
[nojhan:~] $ sudo id -nu
root

Commit 754839a normally solves the problem.