This is related to the bug in kernel 3.11 described here: https://lkml.org/lkml/2013/9/7/126
As the contents of /sys/devices/system/cpu/cpu1/cpufreq/stats/time_in_state are incorrect (and never update), firstly there is a strong chance that the plugin will return values below $MINHZ - resulting in NaN being recorded. Setting $MINHZ to 0 manually in the plugin code then returns 0 values on the graph, as the type is set as DERIVE... as the values returned from time_in_state never change, the derive is always zero. ;) A kernel upgrade will probably fix the problem - the above page says that the patch was submitted for 3.12-rc1. You could either wait until 3.12 is released for Saucy, or upgrade to Tahr which has 3.13(?) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1296012 Title: cpuspeed display no graph To manage notifications about this bug go to: https://bugs.launchpad.net/munin/+bug/1296012/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs