linux-kernel - Re: 2.6.25-rc2 System no longer powers off after suspend-to-disk. Screen becomes green.

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Date:	Thu, 21 Feb 2008 02:49:39 +0800
From:	"Jeff Chua" <jeff.chua.linux@...il.com>
To:	"Linus Torvalds" <torvalds@...ux-foundation.org>
Cc:	"Jesse Barnes" <jesse.barnes@...el.com>,
	lkml <linux-kernel@...r.kernel.org>,
	"Dave Airlie" <airlied@...ux.ie>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-acpi@...r.kernel.org,
	"suspend-devel List" <suspend-devel@...ts.sourceforge.net>,
	"Greg KH" <gregkh@...e.de>
Subject: Re: 2.6.25-rc2 System no longer powers off after suspend-to-disk. Screen becomes green.

On Feb 21, 2008 2:37 AM, Linus Torvalds <torvalds@...ux-foundation.org> wrote:

> Ok, so this is with clean current -git, and nothing disabled?

Clean as far as I can tell. Attached is my .config

>  - the hang at shutdown that requires you to press-and-hold the power
>    button to actually cut power.

Here's an interesting discovery. After I found that "echo reboot >
/sys/power/disk" does reboot, I tried "echo shutdown >
/sys/power/disk", it does shutdown properly.

With "platform" it refuses to shutdown. Both reboot and shutdown still
end up with Mr. Green at resume.


> IOW, I think your patch that disables the two lines actually ends up
> pretty much matching the two *different* problems. Can you confirm that
> doing those two parts of that patch individually actually does
> individually fix the two issues?

Yes, there were indeed two separate problems, and I did dissect them separately.

>  (Ie disabling D3hot makes it shut down nicely but resume with green text

Yes.

> , while disabling just restore_vga() ends up with shutdown problems, but once you press-and-hold the power button, the thing will then restore nicely)+

Yes.


Thanks,
Jeff.

Download attachment ".config" of type "application/octet-stream" (47058 bytes)