Bug 201091
| Summary: | BISECTED 3cd091a77393: Lenovo P50 laptop display remains off after suspend/resume - Lenovo ThinkPad P50 | ||
|---|---|---|---|
| Product: | ACPI | Reporter: | John Lindgren (john) |
| Component: | EC | Assignee: | Zhang Rui (rui.zhang) |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | normal | CC: | lenb |
| Priority: | P1 | ||
| Hardware: | Intel | ||
| OS: | Linux | ||
| Kernel Version: | 4.18 | Subsystem: | |
| Regression: | Yes | Bisected commit-id: | |
*** This bug has been marked as a duplicate of bug 200611 *** |
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).