i810 maximum merged fb size?

[Mark Beierl]

Thanks for the feedback so far everyone!

Here's what I've got - and I admit, I'm a little new to the world of
mergedfb.  My chipset is actually the 945GM, so other's mileage may
vary.

I have the laptop lcd panel at 1280x800, and an external monitor at
1280x1024.  Setting a virtual viewport of 1280x1824 gives me a nice,
bounded rectangle, with the CRT "above" the lcd.

What I'd like (as my neck is starting to hurt) is to try placing the
monitors side by side.  Well, the monitors are beside each other - but
I'm having a hard time relearning to move the mouse up to go from one
monitor to the other!

So, here's the relevant sections of my xorg.conf:

Section "Device"
        Identifier      "Intel-LCD"
        Driver          "i810"
        BusID           "0:2:0"
        VideoRam        131072
        Screen          0

        Option          "CheckLid"              "false"
        Option          "DRI"                   "true"

        Option          "MergedFB"              "true"
        Option          "MonitorLayout"         "CRT,LFP"
        Option          "SecondPosition"        "Above"
        Option          "MetaModes"             "1280x800-1280x1024"
EndSection

Section "Screen"
        Identifier      "Local LCD"
        Device          "Intel-LCD"
        Monitor         "LCD"
        DefaultDepth    24
        SubSection "Display"
                Depth           24
                Modes           "1280x1024" "1280x800" "1024x768"
                Virtual         1280 1824
        EndSubSection
EndSection
=============================================================================

What I'd like is to have a virtual of 2560x1024 and have the
SecondPosition to be RightOf.  But when I do that, I get an error
stating that 2560 > 2048 and it cannot enable that.

While I'm at it, does anyone know how to make a second meta mode that
would remove the second monitor and give me just 1280x800 for those
times when I'm roaming?

Regards,
Mark

On Tue, 2006-24-10 at 13:48 +0400, Yaroslav Rastrigin wrote:
> Hi, Mark,
> On Monday 23 October 2006 20:20, Mark Beierl wrote:
> > Hello, all.  Just a quick question: I'm trying to get dual monitor
> > mergedfb set up with the two monitors beside each other, which results
> > in a virtual viewport of 2560 (1280+1280).  It seems that there is some
> > limitation which prevents the virtual viewport from being > 2048.
> > Anyone know why this is or if there is a way around it?
> Option "NoMergedXinerama" "On" 
> Section "Device"
>     Identifier  "i855GM_MFB"
>     VendorName  "Intel"
>     BoardName   "i855GME"
>     Driver      "i810"
>     VideoRam    32768
>     Option      "MonitorLayout" "CRT,LFP"
>     Option      "XVideo"        "on"
>     Option      "DRI"           "off"
>     Screen      0
>     BusID       "PCI:0:2:0"
>     Option      "MergedFB"      "on"
>     Option      "SecondPosition"        "LeftOf"
>     Option      "MetaModes"     "1280x800-1280x1024"
>     Option      "NoMergedXinerama" "on"
>     Option      "SWCursor"      "on"
>     Option      "LinearAlloc"   "8192"
>     Option      "CacheLines"    "8192"
> EndSection
> Gives me 1280x1024 for both screens (laptop and external)
> > 
> > Regards,
> > Mark
> > 
>