Confirmed, downgrading to 0.9.10-0ubuntu2 from Precise works ok. No other changes (to configs, etc) other than the fact that forcing that version of pcmanfm pulled in some other older versions of other packages.
root@noexcuse:~# apt-cache policy pcmanfm pcmanfm: Installed: 1.0.1-0ubuntu1 Candidate: 1.1.0-0ubuntu2 Version table: 1.1.0-0ubuntu2 0 500 http://us.archive.ubuntu.com/ubuntu/ raring/universe i386 Packages 1.1.0-0ubuntu1~precise.1 0 -10 http://packages.bodhilinux.com/bodhi/ precise/testing i386 Packages *** 1.0.1-0ubuntu1 0 500 http://archive.ubuntu.com/ubuntu/ quantal/universe i386 Packages 100 /var/lib/dpkg/status 0.9.10-0ubuntu2 0 500 http://archive.ubuntu.com/ubuntu/ precise/universe i386 Packages root@noexcuse:~# apt-get install pcmanfm=0.9.10-0ubuntu2 Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: libfm-gtk-bin libfm-gtk3 libfm3 Use 'apt-get autoremove' to remove them. The following extra packages will be installed: libfm-gtk1 libfm1 libmenu-cache1 The following NEW packages will be installed: libfm-gtk1 libfm1 libmenu-cache1 The following packages will be DOWNGRADED: pcmanfm 0 upgraded, 3 newly installed, 1 downgraded, 0 to remove and 1 not upgraded. Need to get 51.5 kB/455 kB of archives. After this operation, 447 kB of additional disk space will be used. Do you want to continue [Y/n]? And now "pcmanfm --desktop" uses 0.7% cpu instead of 99% root@noexcuse:~# ps auxw |grep pcmanfm bkw 2580 0.7 0.5 84044 10428 pts/3 S+ 14:52 0:00 pcmanfm --desktop -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/913273 Title: PCManFM consumes >90% CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pcmanfm/+bug/913273/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs