From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt To: Sven LUTHER , , Subject: Re: Success! (was Re: External Monitor under Pismo) Date: Fri, 4 May 2001 16:13:40 +0200 Message-Id: <20010504141340.14232@mailhost.mipsys.com> In-Reply-To: <20010504160604.A14752@lambda.u-strasbg.fr> References: <20010504160604.A14752@lambda.u-strasbg.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: > >So mirroring will work, i guess. Well, it works fine on the Pismo, but the composite output may need additional configuration of the composite encoder. >for dual head you will need X, isn't it, fbdev seems broken (well at least >those using fbgen) for dualhead anyway. Don't know if aty128fb uses fbdev. > >BTW, how does the rage 128 work, it has 1 accel engine that draws to the >framebuffer memory, and one or more ramdac or digital out ports that send the >fb data to the displays. There are so many revisions... who knows ! The "dual head" chips do like you said: one accel engine and 2 CRTCs & DACs. >So i suppose the you will need to use a trick similar to the matrox one to get >dual headed accelerated X to work. > >But could it be possible to block this in hardware, and thus force mirroring >only operation ? > >How many different rage 128 mobility are around anyway ? > >Friendly, ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/