Closing the lid does not generate an ACPI signal
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| acpid (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned | ||
Bug Description
HP Pavilion dv4-2165dx Laptop
OS Version: 12.04.1 LTS
closing the lid does not cause the machine to suspend as per settings in power management
Summary:
using acpi_listen to check for events:
pressing the power button generates the output:
"button/power PWRF 00000080 00000018"
closing and opening the lid generates no output;
however, if the power button is pressed again, the following output is produced:
"button/power PWRF 00000080 00000019
button/lid LID0 00000080 00000009"
when pressed again:
"button/power PWRF 00000080 0000001a
button/lid LID0 00000080 0000000a"
a third time:
"button/power PWRF 00000080 0000001b"
thus it seems that the acpi signal for the lid is not registered unless another acpi event occurs
so a workaround is to connect the machine to AC power, close the lid, and remove the AC power. this causes the machine to suspend successfully, with acpi_listen producing the following output:
"button/lid LID0 00000080 0000000f
ac_adapter AC 00000080 00000000"
Thanks!
| Ubuntu Foundations Team Bug Bot (crichton) wrote | #1 |
| tags: | added: bot-comment |
| affects: | ubuntu → acpid (Ubuntu) |
| Launchpad Janitor (janitor) wrote | #2 |
| Changed in acpid (Ubuntu): | |
| status: | New → Confirmed |
| Alf HP Lund (alf-c) wrote | #3 |
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