Re: multi monitor hardware / graphics card advice

1 Oct 2014


      On Tue, 30 Sep 2014 09:30:33 +1000
Michael Pope <map7777@gmail.com> wrote:
...
Hello,
On 28/09/14 15:43, h wrote:
...
Hi,
I am sure I have seen a post on (a) newsgroup about this lately, but
am unable to find it.
Please excuse me posting what I think I should be able to google -
but cann't.
I run a desktop opensuse / KDE system and I want to replace my
existing dual monitor system with a quad monitor system. I am
looking for information on the linux support for graphics card
setups which support 4+ monitors.
I am resigned to using either nvidia or radeon with proprietary
drivers, so would appreciate any advice regarding hardware from
anyone who has done this sort of thing recently.
I run 4 24" screens at 1080p at work on Debian 7 stable using two
Nvidia 1GB GTX 650's and configuring it in good old xorg.conf
included below
Section "ServerLayout"
    Identifier     "TriHead"
    Screen      0  "Screen0" 3200 0
    Screen      1  "Screen1" 1280 0
    Screen      2  "Screen2" 5120 0
    Screen      3  "Screen3" LeftOf "Screen1"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "1"    # Enable xinerama on the whole
EndSection
Section "InputDevice"
# generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection
Section "InputDevice"
# generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection
Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "BENQ E2400HD"
    HorizSync       30.0 - 83.0
    VertRefresh     55.0 - 85.0
    Option         "DPMS"
EndSection
Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "BENQ M2400HD"
    HorizSync       30.0 - 83.0
    VertRefresh     55.0 - 85.0
    Option         "DPMS"
EndSection
Section "Monitor"
    Identifier     "Monitor2"
    VendorName     "Unknown"
    ModelName      "CRT-1"
    HorizSync       30.0 - 83.0
    VertRefresh     55.0 - 85.0
    Option         "DPMS"
EndSection
Section "Monitor"
    Identifier     "Monitor3"
    VendorName     "Unknown"
    ModelName      "NVT Novatek  563D"
    HorizSync       30.0 - 80.0
    VertRefresh     50.0 - 75.0
EndSection
Section "Device"
# Use lscpi | grep VGA to get the BusID
                # Note the Screen numbers
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 8400 GS"
    BusID          "PCI:3:0:0"
    Screen          0
EndSection
Section "Device"
# A device for each screen
    Identifier     "Device1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 8400 GS"
    BusID          "PCI:3:0:0"
    Screen          1
EndSection
Section "Device"
    Identifier     "Device2"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 8400 GS"
    BusID          "PCI:4:0:0"
    Screen          0
EndSection
Section "Device"
    Identifier     "Device3"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 8400 GS"
    BusID          "PCI:4:0:0"
    Screen          1
EndSection
Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "NoLogo" "True"
#    Option         "DoubleBuffer" "True"
    Option         "TripleBuffer" "True"
    Option         "TwinView" "0"
    Option         "metamodes" "DFP: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection
Section "Screen"
    Identifier     "Screen1"
    Device         "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "metamodes" "CRT: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection
Section "Screen"
# Removed Option "metamodes" "nvidia-auto-select +0+0"
# Removed Option "metamodes" "1920x1080 +0+0"
    Identifier     "Screen2"
    Device         "Device2"
    Monitor        "Monitor2"
    DefaultDepth    24
    Option         "NoLogo" "True"
#    Option         "DoubleBuffer" "True"
    Option         "TripleBuffer" "True"
    Option         "TwinView" "0"
    Option         "metamodes" "CRT: 1920x1080 +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection
Section "Screen"
    Identifier     "Screen3"
    Device         "Device3"
    Monitor        "Monitor3"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "metamodes" "DFP: 1280x1024 +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection
It works pretty good.
from
Michael
Hi Michael,
Thanks for the information. I am not on top of multiple graphics
cards.  Will have to focus on this.
Ta again
H


--

h

tags

participants (1)