kdesudo don't work after upgrade to 12.04

[Rafael]

kdesudo stopped working after upgrade from ubuntu 11.10 to 12.04 (32 bits). The error message depends of the application called:

$ kdesudo kate
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
kate: cannot connect to X server

$ kdesudo systemsettings
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
systemsettings(23695): KUniqueApplication: Cannot find the D-Bus session server: "Unable to autolaunch a dbus-daemon without a $DISPLAY for X11"
systemsettings(23694): KUniqueApplication: Pipe closed unexpectedly.

[Rafael (qe47ct6n318407t6n)]

I just tried the same upgrade in another computer. Upgrade was kubuntu 32-bit 11.10 to 12.04.

This time, kdesudo is working 100%.

Any ideas? What to check in both computers?

[themroc (rauchweihe)]

I have found a solution of the described problem:

I had have this additional entries in my /etc/sudoers:

# Allow proxy environment variables to pass through
Defaults env_keep="no_proxy NO_PROXY"
Defaults env_keep+="all_proxy ALL_PROXY"
Defaults env_keep+="http_proxy HTTP_PROXY"
Defaults env_keep+="https_proxy HTTPS_PROXY"
Defaults env_keep+="ftp_proxy FTP_PROXY"

After deleting this two entries

Defaults env_keep="no_proxy NO_PROXY"
Defaults env_keep+="all_proxy ALL_PROXY"

kdesudo works again.

Note, the environment variables NO_PROXY ans ALL_PROXY are not defined for my normal users, so perhaps this was the reason, why kdesudo fails in Kubuntu 12.04.

See also https://bugs.launchpad.net/kdesudo/+bug/989577

[Jonathan Riddell (jr)]

kdesudo has moved to KDE infrastructure.

If you feel your bug is still relevant please open a new bug on bugs.kde.org

https://bugs.kde.org/describecomponents.cgi?product=kdesudo