sorry, I explained it wrong. I didn't meant to say that the workaround creates a new problem. What I wanted to say is that what causes this problem also prevents the monitor from going to sleep. Both problems seems to have the same cause.
By the way, I cannot apply the workaround. It says "permission denied", even if I use sudo. $ sudo echo 1 > /proc/acpi/video/GFX0/DOS bash: /proc/acpi/video/GFX0/DOS: Permission denied $ sudo echo 0 > /proc/acpi/video/GFX0/DOS bash: /proc/acpi/video/GFX0/DOS: Permission denied I also noticed another thing. If I do the following (as explained in https://bugzilla.redhat.com/show_bug.cgi?id=512958) it recognizes correctly if the lid is closed or open. $ cat /proc/acpi/button/lid/LID/state state: closed $ cat /proc/acpi/button/lid/LID/state state: open But the output of the gnome-power-manager in verbose mode (and with the lid open) says that the lid is closed: TI:12:09:52 TH:0x8a7e8b8 FI:gpm-idle.c FN:gpm_idle_set_mode,108 - Doing a state transition: normal TI:12:09:52 TH:0x8a7e8b8 FI:gpm-manager.c FN:gpm_manager_idle_changed_cb,804 - lid is closed, so we are ignoring ->NORMAL state changes TI:12:09:52 TH:0x8a7e8b8 FI:gpm-idle.c FN:gpm_idle_evaluate,192 - X not idle -- HP 2140 Lid Close Not Detected https://bugs.launchpad.net/bugs/376793 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
