Bug 34722 - Sony Vaio VPCCW2 requires acpi_sleep=nonvs
Summary: Sony Vaio VPCCW2 requires acpi_sleep=nonvs
Status: CLOSED PATCH_ALREADY_AVAILABLE
Alias: None
Product: ACPI
Classification: Unclassified
Component: Power-Sleep-Wake (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Lan Tianyu
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-05-08 23:20 UTC by Rohan B. Dhruva
Modified: 2012-02-27 19:59 UTC (History)
4 users (show)

See Also:
Kernel Version: 2.6.38
Subsystem:
Regression: No
Bisected commit-id:

Attachments
debug patch (545 bytes, patch)
2011-07-22 02:59 UTC, Lan Tianyu 		Details | Diff
Add an attachment (proposed patch, testcase, etc.)

Description Rohan B. Dhruva 2011-05-08 23:20:02 UTC 
My laptop -- Sony Vaio VPCCW2 -- requires acpi_sleep=nonvs kernel parameter for suspend/resume to work correctly. As mentioned in this patch -- http://www.spinics.net/lists/linux-acpi/msg30255.html -- I request my system to be added in the blacklist of acpisleep_dmi_table[].

From dmidecode, here's the relevant info:

System Information
        Manufacturer: Sony Corporation
        Product Name: VPCCW29FX

Thank you.
Comment 1 Lan Tianyu 2011-07-22 02:59:09 UTC 
Created attachment 66332 [details]
debug patch

Please try this patch.
Comment 2 Zhang Rui 2012-01-18 05:13:41 UTC 
It's great that the kernel bugzilla is back.

Can you please verify if the problem still exists in the latest upstream
kernel, both with and without the patch in comment #1?
Comment 3 Rohan B. Dhruva 2012-01-20 06:39:24 UTC 
Yes, I still need to apply this patch (or pass the parameter) in the latest upstream 3.2.1 kernel. Is there any downside to having nonvs enabled?
Comment 4 Lan Tianyu 2012-01-20 08:21:40 UTC 
No. I will send out the patch to the acpi maillist soon.
Comment 5 Rohan B. Dhruva 2012-01-20 08:31:10 UTC 
Thank you!
Comment 6 Florian Mickler 2012-02-01 21:00:01 UTC 
A patch referencing this bug report has been merged in Linux v3.3-rc2:

commit 93f770846e8dedc5d9117bd4ad9d7efd18420627
Author: Lan Tianyu <tianyu.lan@intel.com>
Date:   Sat Jan 21 09:23:56 2012 +0800

    ACPI / PM: Add Sony Vaio VPCCW29FX to nonvs blacklist.
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