Thanks for the hint. "unset DISPLAY" let "su -" complete immediately.
I'll check my bashrc/profile + xauth related things to see what might cause this. Thomas Am 21.09.2010 12:10, schrieb YoYo Siska: > On Mon, Sep 20, 2010 at 11:53:34PM +0200, Thomas Drueke wrote: >> Thanks for hints, but no luck so far. >> >> Yohan, using xterm instead of konsole results in the same delay. > > To rule some other things out, you could also try: > unset DISPLAY > su - > > DISPLAY is one of the differences between a text konsole and anything > under X... Might be that some bashrc/profile script tries to do > something with X if it sees DISPLAY, but isn't able to connect to X under > root... (maybe some xauth stuff..) > > yoyo > >> >> Alan, hosts contains the hostname (FQDN) for eth0 and also alocalhost >> entry. Plus wireshark didn't show any network traffic during the delay >> (for both eth0 and lo). >> >> Is there any of the new services from KDE 4 which requires some >> configuration concerning DNS or similar network services ? >> >> Regards, >> Thomas >> >> Am 20.09.2010 23:11, schrieb Alan McKinnon: >>> Apparently, though unproven, at 20:08 on Monday 20 September 2010, Thomas >>> Drueke did opine thusly: >>> >>>> Hi, >>>> >>>> I installed KDE 4.5.1 over the weekend following the >>>> "remove-all-old-kde-packages-first" approach on the gentoo webpage. So >>>> far everything seems to be fine except one thing. >>>> >>>> When I type "su -" in konsole it takes 20-30 seconds to complete. >>>> Doing the same on a text console the command completes immediately. >>>> >>>> I don't have NIS or LDAP enabled. "strace su -" came back with an >>>> authentication failure immediately so no much info from there. >>>> Also "top" didn't show any suspicious process consuming the time. >>>> >>>> I found a thread from may which might be related to my observation >>>> ("KDE takes ages to show password screen after suspend"). >>>> The solution there was to upgrade to KDE 4.4.4 which does not fit here. >>>> Google didn't show much on this topic as well. >>>> >>>> Any ideas what might cause the delay or how to get more close to the >>>> root cause ? >>> >>> >>> 20-30 second delays due to DNS timeouts have hit me so many times it's >>> always >>> the first thing I check, even when it seems irrelevant. >>> >>> Does your machine have a local hostname, and do you have an entry for it in >>> either DNS or /etc/hosts? >>> >>> >> > > > >