Bug 195741 - [BXT][BAT] Joule 570x hangs in igt@gem_exec_suspend@basic-s3
Summary: [BXT][BAT] Joule 570x hangs in igt@gem_exec_suspend@basic-s3
Status: RESOLVED INVALID
Alias: None
Product: ACPI
Classification: Unclassified
Component: BIOS (show other bugs)
Hardware: Intel Linux
: P1 normal
Assignee: acpi_bios
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-05-12 22:35 UTC by paul.a.parenteau
Modified: 2017-06-05 09:56 UTC (History)
2 users (show)

See Also:
Kernel Version: unknown
Subsystem:
Regression: No
Bisected commit-id:

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Description paul.a.parenteau 2017-05-12 22:35:21 UTC 
Originally filed as https://bugs.freedesktop.org/show_bug.cgi?id=99871 against the drm/i915 driver.  Comments from this bug:

Description:
Linux fails to wake Joule from S3 suspend with rtcwake. Reason: ACPI bug

Comment #1:
It looks like ACPI is lacking support for RTC wake or wake via a power button press. From dmesg during boot:

ACPI Error: Could not enable PowerButton event (20160930/evxfevnt-212)
ACPI Error: Could not enable RealTimeClock event (20160422/evxfevnt-212)

This is a known issue, being investigated by the BIOS/ACPI team.

Comment #2:
The bug has been worked around in our CI for now with a dedicated piece of HW from Imre, but the bug is still present and should be fixed upstream!

Imre, can you put a dependency for this bug on the bug filed to the core team?
Comment 1 Chen Yu 2017-06-05 09:56:30 UTC 
Joule does not support native rtcwake but uses acpi time device for wakeup, I 've written a draft patch to support the acpi time device but it requires  that the BIOS team  provide a ACPI timer device support in the firmware. Not sure what workaround you are using to bypass it, let's sync in email.
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