Comment 25 for bug 1209008

Hi Laércio,

SHAME ON ME!!!!

When I started looking for files to paste here, I had a closer look at my xorg.conf:

Section "ServerLayout"
    Identifier "Layout0"
    Screen 0 "Screen0" 0 0
    MatchSeat "seat0"
EndSection

Section "ServerLayout"
    Identifier "Layout1"
    Screen 0 "Screen1" 0 0
    MatchSeat "seat1"
EndSection

Section "Files"
EndSection

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier "Monitor0"
    VendorName "Unknown"
    ModelName "Samsung SMEX2220"
    HorizSync 30.0 - 81.0
    VertRefresh 56.0 - 75.0
    Option "DPMS"
EndSection

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier "Monitor1"
    VendorName "Unknown"
    ModelName "Philips 170B4"
    HorizSync 30.0 - 82.0
    VertRefresh 56.0 - 76.0
    Option "DPMS"
EndSection

Section "Device"
    Identifier "Device0"
    Driver "nvidia"
    VendorName "NVIDIA Corporation"
    BoardName "GeForce 8400 GS"
    BusID "PCI:1:0:0"
    MatchSeat "seat0"
EndSection

Section "Device"
    Identifier "Device1"
    Driver "nvidia"
    VendorName "NVIDIA Corporation"
    BoardName "Quadro NVS 290"
    BusID "PCI:3:0:0"
    MatchSeat "seat1"
EndSection

Section "Screen"
    Identifier "Screen0"
    Device "Device0"
    Monitor "Monitor0"
    DefaultDepth 24
    Option "Stereo" "0"
    Option "SLI" "Off"
    Option "MultiGPU" "Off"
    Option "BaseMosaic" "off"
    SubSection "Display"
        Depth 24
    EndSubSection
    MatchSeat "seat0"
EndSection

Section "Screen"
    Identifier "Screen1"
    Device "Device1"
    Monitor "Monitor1"
    DefaultDepth 24
    Option "Stereo" "0"
    Option "SLI" "Off"
    Option "MultiGPU" "Off"
    Option "BaseMosaic" "off"
    SubSection "Display"
        Depth 24
    EndSubSection
    MatchSeat "seat1"
EndSection

The problem is in naming. I dutifully named seat 0 "seat0", but I also dutifully followed the convention of naming
seat 1 "seat-1", with a dash between the "t" and the "1" - _EXCEPT_ in my xorg.conf...

When I did s/seat1/seat-1/g in my xorg.conf, the two seats appear correctly.
I did not stress test it too much, but will do now. If I have a problem I will let you know immediately.

I've been using multiseat setups for over a decade now and it has always been at least a bit "hakish"; each and every dist-upgrade (I've been using Debian testing, where dist-upgrades happen frequently) has been a threat that thigs would stop working. What is proposed here looks like a proper solution to multiseat setups. Thanks for your work!