I'm surprised I haven't found this bug report until now, despite many, many days of enraged googling. My HP/Compaq 6720s turned into a nuisance somewhere around Ubuntu 9.xx versions, when this issue popped up along with (possibly somewhat related) touchpad/mouse bugs #362359 and/or #375905.
Actually the lid doesn't even need to be touched at all; Moving the laptop a little or even an angered key press (which easily turns into a vicious circle) is usually enough to trigger it. Obviously the lid movement sensors are very sensitive. What I know so far is that in recent Ubuntu versions, including Maverick, these lid movements produce dozens of key press/release 235 events in xinput test, and that code seems to be mapped to the XF86Display key, which in turn causes the display to refresh/flicker constantly for several seconds, slowing graphics down to a crawl and making the system unresponsive. Similar behavior can be produced by repeatedly hitting Fn+F4 (meant for switching displays). The grey windows mentioned in the bug description were Karmic-specific, I think, but otherwise the bug has remained the same. My temporary solution was to disable the xrandr plugin as instructed here: https://bugzilla.gnome.org/show_bug.cgi?id=603891#c1 ...but that disables some functionality and is not system-wide, so a better fix/workaround would be welcome. I see it's been quiet with this bug for a year now, but I'm hoping someone eventually managed to do something about this. ** Bug watch added: GNOME Bug Tracker #603891 https://bugzilla.gnome.org/show_bug.cgi?id=603891 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/470828 Title: [Karmic] Moving the lid of the laptop generate a pic of CPU activity -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
