The last change in /etc/profile "if [ "$SHELL" = '/bin/bash' ] || [ "$SHELL" = '/bin/sh' ]" to "if [ "$TERM" != 'dumb' ] && [ -n "$BASH" ]" causes the KDE-console (Konsole) to not have the PS1-definition anymore and just showing the usual "bash-2.05b$ " prompt, not the nice coloured one. I didn't investigate this any further, but it would be nice to have the PS1-definition in Konsole.
Run 'konsole -l'. Only a login shell (interactive) sources (or should) /etc/profile.
Just for the record: 'konsole --ls' is the correct command.