Bug 34722

Summary:	Sony Vaio VPCCW2 requires acpi_sleep=nonvs
Product:	ACPI	Reporter:	Rohan B. Dhruva (rohandhruva)
Component:	Power-Sleep-Wake	Assignee:	Lan Tianyu (tianyu.lan)
Status:	CLOSED PATCH_ALREADY_AVAILABLE
Severity:	normal	CC:	florian, lenb, rui.zhang, tianyu.lan
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.38	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	debug patch

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.