linux-kernel - OT: enabling Xcomposite [was: Linux Kernel cfs scheduler and xorg kbd]

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Message-ID: <50209.81.207.0.53.1186424795.squirrel@secure.samage.net>
Date:	Mon, 6 Aug 2007 20:26:35 +0200 (CEST)
From:	"Indan Zupancic" <indan@....nu>
To:	"Rene Herman" <rene.herman@...il.com>
Cc:	"Ingo Molnar" <mingo@...e.hu>, teresa@...tka.net,
	"Andi Kleen" <andi@...stfloor.org>,
	"Michal Piotrowski" <michal.k.k.piotrowski@...il.com>,
	"CK Mailinglist" <ck@....kolivas.org>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	dmitry.torokhov@...il.com, dtor@...l.ru
Subject: OT: enabling Xcomposite [was: Linux Kernel cfs scheduler and xorg 
     kbd]

On Mon, August 6, 2007 19:46, Rene Herman wrote:
> On 08/06/2007 05:19 PM, Indan Zupancic wrote:
>
> [ Yes, OT, I'll shelve it after this ]

Me too, and I wonder if we should've dropped a bunch of CCs...

>
>> Anyway, if you want to experience a shock, try enabling xcomposite and
>> run xcompmgr -a or something. It's so wonderfully smooth (even though
>> some rendering seems slower than before, it's really worth it for me).
>
> Don't believe I can -- using a Matrox Millenium G550 (driver mga) and
> nothing I do seems to have an effect.

Well, as far as I know adding the following to your xorg.conf should be enough:

Section "Extensions"
        Option  "Composite"     "enable"
EndSection

and then to enable it at runtime start a composite manager.

Reading the mga manpage it seems you need to add

Option "AccelMethod" "EXA"

to the driver section. (Though it says EXA is possibly unstable.)

Run "xdpyinfo | grep Composite" to see if it works or not.

But as you said, getting off-topic, so if the above doesn't work sent a
private mail, or go to the xorg mailinglist.

Greetings,

Indan


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