LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Pavel Machek <pavel@ucw.cz>
To: Jordan Crouse <jordan.crouse@amd.com>
Cc: Jim Gettys <jg@laptop.org>, "Brown, Len" <len.brown@intel.com>,
	Linux Kernel ML <linux-kernel@vger.kernel.org>,
	Dominik Brodowski <linux@dominikbrodowski.net>,
	ACPI ML <linux-acpi@vger.kernel.org>,
	Adam Belay <abelay@novell.com>,
	"Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>,
	Arjan van de Ven <arjan@linux.intel.com>,
	devel@laptop.org, Bjorn Helgaas <bjorn.helgaas@hp.com>
Subject: Re: ACPI: Idle Processor PM Improvements
Date: Tue, 12 Sep 2006 11:21:00 +0200	[thread overview]
Message-ID: <20060912092100.GC19482@elf.ucw.cz> (raw)
In-Reply-To: <20060906145849.GE2623@cosmic.amd.com>

On Wed 2006-09-06 08:58:49, Jordan Crouse wrote:
> On 06/09/06 12:37 +0200, Pavel Machek wrote:
> > Hi!
> > 
> > > > 2.4 and 2.6 are *very* different here. You'll probably need to optimize freezer
> > > > in 2.6 a bit...
> > > > 						
> > > 
> > > Among other problems: e.g. 2.4 did not automatically do a VT switch; 2.6
> > > does; we'll have to have a way to signal "we're a sane display driver;
> > > don't switch away from me on suspend".
> > 
> > Not like that, please.
> > 
> > You are using X running over framebuffer, right? So that kernel is
> > controlling the graphics hardware. In such case it is safe to avoid VT
> > switch.
> 
> Actually not - the Geode GX has full 2D hardware acceleration with a complete
> X driver to match.  No Xfbdev here.

Ok, so what is needed is message to X "we are suspending", and X needs
to respond "okay, I'm ready, no need for console switch".

Alternatively, hack kernel to take control from X without actually
switching consoles. That should be possible even with current
interface.
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

  reply	other threads:[~2006-09-12  9:20 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-30 18:40 [RFC][PATCH 1/2] " Pallipadi, Venkatesh
2006-08-30 19:43 ` Matthew Garrett
2006-08-31 23:13   ` Bjorn Helgaas
2006-09-01  0:30     ` [OLPC-devel] " Jim Gettys
2006-09-01  3:53       ` Len Brown
2006-09-01  4:12         ` Matthew Garrett
2006-09-01 15:51           ` Jordan Crouse
2006-09-01 13:14         ` [OLPC-devel] Re: [RFC][PATCH 1/2] " Carl-Daniel Hailfinger
2006-09-01 21:52         ` Andi Kleen
2006-09-01 22:57           ` Alan Cox
2006-09-04 13:13         ` Pavel Machek
2006-09-04 13:09       ` Pavel Machek
2006-09-05 14:31         ` Jim Gettys
2006-09-06 10:37           ` Pavel Machek
2006-09-06 14:58             ` Jordan Crouse
2006-09-12  9:21               ` Pavel Machek [this message]
2006-09-12 18:14                 ` Jim Gettys
2006-09-12 18:27                   ` Mitch Bradley
2006-09-12 20:18                   ` Jordan Crouse
2006-09-14  9:20                     ` Pavel Machek
2006-09-14  9:18                   ` Pavel Machek
2006-09-14 11:29                     ` Jim Gettys
2006-09-06 15:19             ` [OLPC-devel] Re: [RFC][PATCH 1/2] " Jim Gettys
2006-09-12  9:21               ` Pavel Machek

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20060912092100.GC19482@elf.ucw.cz \
    --to=pavel@ucw.cz \
    --cc=abelay@novell.com \
    --cc=arjan@linux.intel.com \
    --cc=bjorn.helgaas@hp.com \
    --cc=devel@laptop.org \
    --cc=jg@laptop.org \
    --cc=jordan.crouse@amd.com \
    --cc=len.brown@intel.com \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux@dominikbrodowski.net \
    --cc=venkatesh.pallipadi@intel.com \
    --subject='Re: ACPI: Idle Processor PM Improvements' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).