Bug 44311

Summary: S3 wake up on Gigabyte M720-US3 causes reboot since commit 2feec47d4c5f80b05f1650f5a24865718978eea4
Product: ACPI Reporter: Maciej S. Szmigiero (mail)
Component: Power-Sleep-WakeAssignee: acpi_power-sleep-wake
Severity: normal CC: lenb
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 3.4 and current git Tree: Mainline
Regression: Yes
Attachments: temporary workaround

Description Maciej S. Szmigiero 2012-07-07 22:46:42 UTC
Created attachment 75031 [details]
temporary workaround

When resuming from Suspend to RAM (S3) state on Gigabyte GA-M720-US3 motherboard with BIOS version F7n the computer reboots.

This happens since commit 2feec47d4c5f80b05f1650f5a24865718978eea4 (ACPICA: ACPI 5: Support for new FADT SleepStatus, SleepControl registers) on (at least) 3.4 and current git.

If I define out disabling of BM arbitration on sleep introduced by this commit the computer wakes up successfully on both 3.4 and current git.

The attached patch contains a temporary workaround that I use to make the S3 working again.
Comment 1 Len Brown 2012-07-17 02:06:48 UTC

*** This bug has been marked as a duplicate of bug 43641 ***