https://bugzilla.kernel.org/show_bug.cgi?id=201575
Bug ID: 201575
Summary: On HP Elite x2 1013 G3 and Dell Latitude 7285 power
button sometimes wakeup tablet only after holding it
for a few seconds
Product: ACPI
Version: 2.5
Kernel Version: 4.19.0
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: EC
Assignee: acpi...@kernel-bugs.osdl.org
Reporter: russianneuroman...@ya.ru
Regression: No
I find that on HP Elite x2 1013 G3 and Dell Latitude 7285 power button
sometimes wakeup it tablet after short press, and sometimes power button wakeup
tablet only after holding it for a few seconds.
Dell Latitude 7285:
Initially with Linux 4.13-4.15 (earlier releases wasn't tested) it was
requirement to hold power button for five seconds to wakeup from suspend
(freeze). Later, in Linux 4.16 or Linux 4.17 power button started to wakeup
tablet after short press, except it did so most of the time, not always.
Currently sometimes tablet doesn't wakeup from lid event and power button
press, so in such cases it's still necessary to hold power button for five
seconds for wakeup it.
Tested BIOS: from 1.0.5 to 1.2.0.
acpidump and dsdt.dsl is attached
HP Elite x2 1013 G3:
Tablet was tested only with Linux 4.19.0. As with Dell Latitude 7285, sometimes
tablet doesn't wakeup from lid event or power button press, and it's still
necessary to hold power button for three seconds for wakeup. It also happens
with suspend freeze, not suspend to ram which I didn't test yet.
Tested BIOS: Q87 01.01.03 Rev.A
acpidump, dsdt.dsl and dmesg from suspend->wakeup cycle, when issue is
reproduced, is attached.
Please let me know if any additional debug information is required.
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