Dual (zaphod) head on Intel i810 does not work for FreeBSD V7.0 Release

[Ray Newman]

Hi,

Using the intel driver, I can *ALMOST* get there.  What I want to
do is run KDE and general apps on the first screen - LVDS ( :0.0 )
and run one single X app on the second screen - CRT ( :0.1 ).

Using the intel drivers, I can't get KDE to leave the second
screen alone.  In fact, it keeps moving the panel to it.
The docs with the intel driver say it just doesn't support
dual (zaphod) head mode.

Are the i810 drivers still in use?  They also *ALMOST* get there
in zaphod mode - they just stuff the screen modes at the last moment.


Ray Newman


On 29/08/2008, at 11:44 PM, Tom Evans wrote:

> On Fri, 2008-08-29 at 17:56 +1000, Ray Newman wrote:
>> Hi,
>>
>> Under FreeBSD V6.2 Release (X 6.9.0 and i810 1.4.1) with this
>> xorg.conf, this log file
>> is produced and the dual screen config works.
>>
>>
>> Under FreeBSD V7.0 Release (X 1.4.0 and i810 1.6.5) with this  
>> xorg.conf which is nearly
>> identical with the previous one, this log file is produced and the  
>> dual screen doesn't work.
>> It seems to get the primary and secondary screens totally confused.
>>
>> Ray Newman
>> 29 Aug 2008
>
>
> With X 1.4, use driver intel ( x11-drivers/xf86-video-intel ) and  
> xrandr
> to achieve the same effect. This has the benefit of dynamically  
> enabling
> or disabling additional heads. The configuration is slightly  
> different,
> here is a pertinent snippet from mine for comparison. There is only  
> one
> device, screen and monitor specified in the conf.
>
> Section "Device"
> 	Identifier	"Card0"
> 	Driver		"intel"
> 	VendorName	"Intel Corporation"
> 	Option		"DRI" "true"
> 	BoardName	"Mobile Integrated Graphics Controller"
> 	BusID		"PCI:0:2:0"
> 	Screen		0
> EndSection
>
> Section "Screen"
> 	Identifier	"Screen0"
> 	Device		"Card0"
> 	Monitor		"Monitor0"
> 	SubSection "Display"
> 		Viewport	0 0
> 		Depth		32
> 		Modes		"1400x1050"
> 		Virtual		2680	1050
> 	EndSubSection
> EndSection
>
> My laptop has an internal 1400x1050 screen, and also a 1280x1024
> external screen to its left. It's enabled from my .xinitrc with a
> command like 'xrandr --output VGA --mode 1280x1024 --left-of LVDS'.
> Apparently due to hardware limitations, if your 'Virtual' is more than
> 2048x2048 in any dimension, then DRI won't work.
>
> Cheers
>
> Tom