From: Dave Airlie (airlied at domain csn.ul.ie)
Date: Wed 15 Aug 2001 - 11:08:39 IST
I dreamed of such wonders myself when I figured my Inspiron 3700 could do
the same thing... only under Win98 or ME... 2000 doesn't support it and
after figuring that out I realised Linux probably didn't either... unless
ATI have opened up a bit on how to do this I think it is still not
possible..
Dave.
On Wed, 15 Aug 2001, Niall O Broin wrote:
> Having discovered to my pleasant surprise that the hardware on my Dell
> Inspiron 4000 supports two independent displays i.e. the LCD and the
> external VGA can display two entirely different things (works from 'doze
> just like I first used such a feature on a Mac sometime last century). I'd
> now like to get this working under X so I'm reading the Xinerama HOWTO and I
> get as far as running
>
> XFree86 -scanpci
>
> which gives the following
>
> Probing for PCI devices (Bus:Device:Function)
>
> (0:0:0) Intel i815 Bridge
> (0:1:0) unknown chip (DeviceId 0x1131) from Intel
> (0:30:0) unknown chip (DeviceId 0x2448) from Intel
> (0:31:0) unknown chip (DeviceId 0x244c) from Intel
> (0:31:1) Intel unknown card (0x4541) using an unknown chip (DeviceId 0x244a) from Intel
> (0:31:2) Intel unknown card (0x4541) using an unknown chip (DeviceId 0x2442) from Intel
> (1:0:0) unknown card (0x1028/0x00a4) using a ATI Rage 128 Mobility MF
> (2:3:0) unknown card (0x1028/0x00a4) using an unknown chipset(0x125d/0x1998)
> (2:6:0) unknown chipset(0x1668/0x0100)
> (2:15:0) unknown chip (DeviceId 0xac42) from Texas Instruments
> (2:15:1) unknown chip (DeviceId 0xac42) from Texas Instruments
> (2:15:2) unknown card (0x1028/0x00a4) using an unknown chip (DeviceId 0x8027) from Texas Instruments
> (8:4:0) unknown card (0x1668/0x1100) using a Intel 82557/8/9 10/100MBit network controller
> (8:8:0) unknown card (0x1668/0x2400) using an unknown chipset(0x11c1/0x0448)
>
> Obviously 1:0:0 is my LCD - it's identified as ATI and it's the BusID used
> in my X config file. But what's the other video device ? My bet's on 2:3:0
> because of the same unknown card identifier (0x1028/0x00a4) but I'd hate to
> start sending VGA chipset programming commands to e.g. my touchpad :-)
>
> The ideal answer here is from someone who's done exactly this with the same
> hardware :-) but a step in the right direction would be good too.
>
>
>
>
> Niall
>
>
-- David Airlie, Software Engineer http://www.skynet.ie/~airlied / airlied at domain skynet.ie pam_smb / Linux DecStation / Linux VAX / ILUG person
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