I use the gnome-panel "system monitor" widget, showing bar charts of CPU/disk/network/etc activity. Generally all of these seem to work -- but on my home computer, the "disk I/O" chart always shows zero activity, even when there's clearly lots of disk I/O going on. However, on my work computer, the disk-I/O chart seems to work correctly. The only obvious difference between these two systems that may be relevant is that my home system has most of its filesystems in LVM (so the "df" command shows "/dev/mapper/..." for the disk devices). I'm wondering if the gnome-panel system-monitor has a bug where it fails to work with LVM... Thanks,
Similar bug in Ubuntu has some information too: https://bugs.launchpad.net/gnome-system-monitor/+bug/126618
This bug has a few possible fixes in upstream bug https://bugzilla.gnome.org/show_bug.cgi?id=160441 Unfortunately patch in https://bugzilla.gnome.org/show_bug.cgi?id=160441#c21 does not directly apply to squeeze version at least. But the concept should work anyway.
This patch https://bugzilla.gnome.org/attachment.cgi?id=138876 from bug report comment https://bugzilla.gnome.org/show_bug.cgi?id=160441#c16 works on squeeze. Now my encrypted laptop disk stats are nicely visible. Please consider applying to unstable and stable too.
For stable this will most certainly not happen.
Ok. How about backports then?