I have the same symptoms with my NC6000 and 9.04 performing: "cat /proc/acpi/button/lid/C138/state" with lid closed and open produces the same output, which is "state: open"
"acpi_listen" does not seem to work well in detecting the lid switch changes - almost as if it is delayed. If I push the lid button many times, no event is seen for a long while, unless I trigger something else - such as unplug the power - then the lid button messages appear! Nevertheless, the screen stays on. The lid switch & backlight on/off works until gdm loads. Booting into the recovery mode... The backlight works, and performing the same "cat" test above shows correct "open" and "closed" states. "acpi_listen" displays the changes immediately. I suspect gnome-power-manager or something intercepts the lid switch signal and "drops" it or something. -- /proc/acpi/button/lid/*/state always says "open" https://bugs.launchpad.net/bugs/89860 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs