Im running into a similar issue on karmic: While logged in as the first user, everything - even desktop effects - runs fine. Then switching to the second user via fast-user-switch, the system crawls down: start firefox and scroll down a large page. It will take a while.
htop reports that the CPU-usage of the X server for the second user (X :1) goes up to (almost) 100%. This problem seems to be independent of the usage of desktop effects. snippet of lspci: 01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility X1400 ** Attachment added: "Xorg.0.log for the first user running smoothly." http://launchpadlibrarian.net/31651967/Xorg.0.log -- Fast user switch - logging in second user red-lines CPU https://bugs.launchpad.net/bugs/158164 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
