Problem in clone mode with two display card

[Deepak Bhatia]

Hi Alan,

In case we replace the i810 below in the "Device" section by "intel".
Then none of the multimonitor modes work with ATI Card.

Kindly let us know why this is happening.

Section "Device"
	Identifier  "Card1"
	Driver      "i810"
	VendorName  "Intel Corporation"
	BoardName   "Integrated Graphics Controller"
	BusID       "PCI:0:2:0"
EndSection

Section "Device"
	Identifier  "Card0"
	Driver      "ati"
	VendorName  "ATI"
	BoardName   "Rage Mobility P/M"
	ChipSet     "ati"
	ChipId      0x4c52
	ChipRev     0x64
	BusID       "PCI:2:0:0"
EndSection

Best Regards

Deepak Bhatia


-----Original Message-----
From: xorg-bounces at lists.freedesktop.org
[mailto:xorg-bounces at lists.freedesktop.org] On Behalf Of Alan Hourihane
Sent: Tuesday, August 12, 2008 1:40 PM
To: Ashish Jain
Cc: xorg at lists.freedesktop.org
Subject: RE: Problem in clone mode with two display card

On Tue, 2008-08-12 at 10:45 +0530, Ashish Jain wrote:
> Dear Alan,
> 
> Thanks, we have achieved Clone mode.
> 
> But I have few queries,
> 
> 1. When we are trying dual head on laptop (HP laptop which have Intel
> display card with to port) for driver "i810" then we will have to
> specifically add the line " Option "MonitorLayout" "CRT,LFP" " in
> "Device" section. But when we are trying dual head on same laptop for
> driver "intel" then above line is not required. Why?

The i810 driver uses the BIOS and that older driver requires some manual
configuration. The intel driver uses the new randr extension and can
detect when monitors are attached.

> 2. When we are trying clone mode on laptop (HP laptop which have Intel
> display card with to port) then we will have to specifically add the
> line "Option "Clone" "True" " in all the "Device" sections. But when
we
> are trying Clone mode on desktop with two display card then above line
> is not required. Why?

Because the Clone option is controlling a single card and it needs to
know when do display cloning.

> 3. Finally, are the settings of xorg.conf file changed according to
> setuation? Means setting of xorg.conf files depends upon drive used or
> laptop/desktop used or hardware (like display card, monitor, etc.)
used.

Yes, but that's virtually gone with the new Xserver 1.3 and RandR 1.2 as
it's pretty much all dynamic now.

Alan.

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