I took a video of the problem with Istanbul. At 7-12 seconds I move the mouse around inside the network graph to show that moving the mouse inside the graph is not sufficient to create the problem. At 15-25 seconds I move the mouse in and out of the graph area a couple times to show the reproduction of the problem. At 25-32 seconds I move the mouse over the other graphs in gnome-system-monitor applet to show that popping the mouse over any graph will cause the network graph to go down. At 35-40 seconds, a demonstration that tooltips in other Gnome Panel icons don't reproduce, nor does partially covering the graphs with a tooltip. Finally, at 40-46 seconds I move the mouse in and out of the graph area repeatedly (though it's hard to tell in the video), to show that this can create a long valley in the graph. Note that System Monitor is running below to show what the graphs should approximately look like. I tried screencasting just the relevant portion of my screen, but Istanbul's area recording isn't working at the moment, so you get the entire desktop instead.
** Attachment added: "Video demonstrating reproduction of bug" http://launchpadlibrarian.net/9471176/g-s-m%20graph%20bug.ogg -- Moving the mouse cursor over the gnome-system-monitor temporarily causes network and disk usage to become zero https://bugs.launchpad.net/bugs/102921 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs