OK, after talking to sandsmark on #kde I found out the issue is related to Xorg security. If I run "xhost +localhost:root" before trying "kdesu dolphin" everything goes OK, both in Bluewhite64 and Slackware. Don't know about OpenSuse and Fedora.
OK, after talking to sandsmark on #kde I found out the issue is related to Xorg security. If I run "xhost +localhost:root" before trying "kdesu dolphin" everything goes OK, both in Bluewhite64 and Slackware. Don't know about OpenSuse and Fedora.