Bug 201091 - BISECTED 3cd091a77393: Lenovo P50 laptop display remains off after suspend/resume - Lenovo ThinkPad P50
Summary: BISECTED 3cd091a77393: Lenovo P50 laptop display remains off after suspend/re...
Status: RESOLVED DUPLICATE of bug 200611
Alias: None
Product: ACPI
Classification: Unclassified
Component: EC (show other bugs)
Hardware: Intel Linux
: P1 normal
Assignee: Zhang Rui
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-09-11 14:15 UTC by John Lindgren
Modified: 2018-12-27 15:34 UTC (History)
1 user (show)

See Also:
Kernel Version: 4.18
Subsystem:
Regression: Yes
Bisected commit-id:

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Description John Lindgren 2018-09-11 14:15:56 UTC 
Commit 3cd091a77393 ("ACPI / EC: Restore polling during noirq suspend/resume phases") introduced a regression which broke suspend/resume on a Lenovo ThinkPad P50 laptop.  After resume, the laptop display now remains blank, though the backlight is on.

Reverting the bad commit fixes the issue (tested with v4.18 tag).
Comment 1 Zhang Rui 2018-12-27 15:34:26 UTC 

*** This bug has been marked as a duplicate of bug 200611 ***
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