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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Geert Uytterhoeven <geert@linux-m68k.org>,
	<linuxppc-dev@lists.linuxppc.org>,
	<debian-powerpc@lists.debian.org>
Subject: Re: Success! (was Re: External Monitor under Pismo)
Date: Fri, 4 May 2001 16:54:22 +0200	[thread overview]
Message-ID: <20010504145422.25284@mailhost.mipsys.com> (raw)
In-Reply-To: <Pine.LNX.4.05.10105041612120.2886-100000@callisto.of.borg>


>
>
>If you point the second CRTC to the same frame buffer region, you'll have
>mirrorring, else you have two different heads.

In most cases (like what I do with aty128fb), you don't even need to use the
second CRTC. Just enable both outputs and let them source from the first CRTC.

>> So i suppose the you will need to use a trick similar to the matrox one
>to get
>> dual headed accelerated X to work.
>
>Yep. The same is true for atyfb (yes, I should add mirrorring/dualhead
support
>for the Mobility in my Vaio :-).
>
>> But could it be possible to block this in hardware, and thus force
mirroring
>> only operation ?
>
>I suppose yes.
>
>> How many different rage 128 mobility are around anyway ?
>
>No idea. I just at the ATI website earlier today, and they seem to have new
>variants called M4 and Radeon Mobility.


** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

  parent reply	other threads:[~2001-05-04 14:54 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-04-04  9:21 External Monitor under Pismo Iain Sandoe
2001-04-04 17:01 ` Andrew Sharp
2001-04-04 18:43   ` Jason E. Stewart
2001-04-04 18:01     ` Michel Dänzer
2001-04-04 19:28       ` Jason E. Stewart
2001-04-04 21:45         ` Michel Dänzer
2001-04-04 23:19           ` Jason E. Stewart
2001-04-04 22:22             ` Michel Dänzer
2001-04-05 19:55               ` Jason E. Stewart
2001-04-05 19:48                 ` Michel Dänzer
2001-04-05 21:49                   ` Jason E. Stewart
2001-04-05 23:46               ` Jason E. Stewart
2001-04-05 23:28                 ` Michel Dänzer
2001-04-06  3:04                   ` Steven Hanley
     [not found]                   ` <87itjmf7lf.fsf_-_@amadeus.openinformatics.com>
2001-04-30 23:03                     ` Success! (was Re: External Monitor under Pismo) Michel Dänzer
2001-05-04  2:10                       ` Jason E. Stewart
2001-05-03 22:18                         ` Michel Dänzer
2001-05-04  9:08                           ` Jason E. Stewart
2001-05-04 12:05                             ` Michel Dänzer
2001-05-04 17:14                               ` Jason E. Stewart
2001-05-04 17:16                                 ` Jason E. Stewart
2001-05-05  1:37                                 ` Michel Dänzer
2001-05-05  9:38                                   ` Jason E. Stewart
2001-05-05 17:59                                     ` Michel Dänzer
2001-05-05 21:14                                       ` Jason E. Stewart
2001-05-06 13:32                                         ` Michel Dänzer
2001-05-06 21:55                                           ` Jason E. Stewart
2001-05-07  8:15                                             ` Michel Dänzer
2001-05-04 12:29                             ` Benjamin Herrenschmidt
2001-05-04 13:34                               ` Sven LUTHER
2001-05-04 13:57                                 ` Benjamin Herrenschmidt
2001-05-04 14:06                                   ` Sven LUTHER
2001-05-04 14:13                                     ` Benjamin Herrenschmidt
2001-05-04 14:14                                     ` Geert Uytterhoeven
2001-05-04 14:23                                       ` Sven LUTHER
2001-05-04 14:54                                       ` Benjamin Herrenschmidt [this message]
2001-05-04 15:05                                         ` Ramprasad Rao
2001-05-04 15:09                                           ` Benjamin Herrenschmidt
2001-05-04 15:17                                             ` Ramprasad Rao
2001-05-04 20:50                                       ` Michael Schmitz
2001-05-05  1:03                                         ` Benjamin Herrenschmidt
2001-05-05 18:49                                           ` Michael Schmitz
2001-05-04 17:10                               ` Jason E. Stewart

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