From: Dave Airlie <airlied@linux.ie>
To: Stefan Seyfried <seife@suse.de>
Cc: Pavel Machek <pavel@ucw.cz>,
linux-kernel@vger.kernel.org,
Matthew Garrett <mgarrett@chiark.greenend.org.uk>
Subject: Re: [PATCH] reset VGA adapters via BIOS on resume... (non-fbdev/con)
Date: Mon, 25 Jul 2005 08:43:48 +0100 (IST) [thread overview]
Message-ID: <Pine.LNX.4.58.0507250834090.11451@skynet> (raw)
In-Reply-To: <42E4890C.2010801@suse.de>
> > Anyway, this patch is really good, and enables S3 to work on more
> > machines. Thats good. It is not intrusive and I'll probably (try to)
> > push it.
>
> which acpi_sleep=... parameter enables it? I have machines resuming
> perfectly fine without it that i don't want to break ;-)
I'll clean it up to add that stuff soon, but I've hit a problem with it on
my main desktop, it won't come out of suspend using my patch, however
vbepost in userspace works... this is very strange, as they do the same
thing which is execute the VBIOS at c000:3, one does it in the kernel in
REAL mode and the other does it in vm86 mode from userspace.. I think it
may be calling into the real BIOS and hanging up in there.. maybe
something to do with segment register setup or stacks.. (I've tried
on-board i865, radeon and MGA cards)...
Dave
--
David Airlie, Software Engineer
http://www.skynet.ie/~airlied / airlied at skynet.ie
Linux kernel - DRI, VAX / pam_smb / ILUG
next prev parent reply other threads:[~2005-07-25 7:43 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-22 18:52 Dave Airlie
2005-07-22 23:17 ` Matthew Garrett
2005-07-23 0:31 ` Pavel Machek
2005-07-23 0:36 ` Matthew Garrett
2005-07-23 0:47 ` Pavel Machek
2005-07-23 6:53 ` Stefan Smietanowski
2005-07-24 6:08 ` Keith Owens
2005-07-25 6:39 ` Stefan Seyfried
2005-07-25 7:43 ` Dave Airlie [this message]
2005-07-25 7:48 ` Stefan Seyfried
2005-07-23 19:55 ` Alan Cox
2005-07-23 22:37 ` Dave Airlie
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