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

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