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Old 11-29-2011, 01:43 AM
Thomas Cameron
 
Default Anyone got three monitors working?

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On 11/28/2011 11:51 AM, suvayu ali wrote:
> On Sun, Nov 27, 2011 at 20:41, Thomas Cameron
> <thomas.cameron@camerontech.com> wrote:
>> I am wondering, since my motherboard has a four PCI Express x1 ports and
>> I see PCI Express x1 video cards for decent prices, if I can either
>> replace my single card with two identical two-port X1 cards, or just add
>> a single X1 video card to what I already have and get triple head.
>>
>
> I am not sure there are any cards in the market with support for more
> than 2 monitors. If that is true SLI is your only option. And as far
> as I know SLI is only supported by the proprietary drivers. You might
> want to check up on that before you invest on another card.
>

A more expensive option appears to be:

http://www.nvidia.com/object/product_quadro_nvs_450_us.html

Support for 4 monitors from one card. Pricey, though. :-(
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Old 11-29-2011, 09:32 AM
Mattias Hellström
 
Default Anyone got three monitors working?

> I'd *really* love to do triple head - the monitor in front of me for my
> main work, and the two side screens for supporting stuff.
>

Maybe you want to try a splitter, like tripple head2go. Your computer
will see this as one huge monitor.

http://www.matrox.com/graphics/en/products/gxm/th2go/specs.php

I have never tried one but have drooled a lot.
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Old 11-29-2011, 06:46 PM
DJ Delorie
 
Default Anyone got three monitors working?

Thomas Cameron <thomas.cameron@camerontech.com> writes:
> http://www.nvidia.com/object/product_quadro_nvs_450_us.html
>
> Support for 4 monitors from one card. Pricey, though. :-(

Note: this card has two GPUs. This probably means two X drivers, which
means Xinerama.
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Old 11-29-2011, 07:32 PM
Pete Travis
 
Default Anyone got three monitors working?

On Nov 29, 2011 12:47 PM, "DJ Delorie" <dj@delorie.com> wrote:

>

>

> Thomas Cameron <thomas.cameron@camerontech.com> writes:

> > http://www.nvidia.com/object/product_quadro_nvs_450_us.html

> >

> > Support for 4 monitors from one card. Pricey, though. *:-(

>

> Note: this card has two GPUs. *This probably means two X drivers, which

> means Xinerama.

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I have three or four displays attached to two different nvidia GPUs.* I have noticed that a nouveau driven setup handles window management much more sanely, and provides adequate 3D support for my purposes. The easiest way I've found to configure is by creating an xorg.conf with nvidia-settings, then adjusting manually or replacing with open drivers as desired.



However, if you're looking at gnome for this setup, you'll want one of the cards that support more than two displays, like the matrox or ati ones mentioned above, because mutter, gnome's new window manager/compositor, doesn't play nice with multiple X screens.



https://bugzilla.gnome.org/show_bug.cgi?id=648156

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Old 11-30-2011, 04:27 AM
DJ Delorie
 
Default Anyone got three monitors working?

Pete Travis <lists@petetravis.com> writes:
> I have three or four displays attached to two different nvidia GPUs.
> I have noticed that a nouveau driven setup handles window management
> much more sanely, and provides adequate 3D support for my purposes.

Three displays is easy. One desktop on three displays is harder. Do
you have one desktop? Can you open a window and make it as big as all
three montors, as if they were one monitor?
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Old 12-01-2011, 05:41 AM
Thomas Cameron
 
Default Anyone got three monitors working?

On 11/29/2011 11:27 PM, DJ Delorie wrote:
>
> Pete Travis<lists@petetravis.com> writes:
>> I have three or four displays attached to two different nvidia GPUs.
>> I have noticed that a nouveau driven setup handles window management
>> much more sanely, and provides adequate 3D support for my purposes.
>
> Three displays is easy. One desktop on three displays is harder. Do
> you have one desktop? Can you open a window and make it as big as all
> three montors, as if they were one monitor?

I do not, DJ, but that's exactly what I want. Any recommendations as far
as video card setup? I was thinking two identical 1X PCI Express cards
with two outputs each and the proprietary NVidia driver. Thoughts?

Thomas
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Old 12-01-2011, 06:24 PM
Don Krause
 
Default Anyone got three monitors working?

On Nov 30, 2011, at 10:41 PM, Thomas Cameron wrote:

> On 11/29/2011 11:27 PM, DJ Delorie wrote:
>>
>> Pete Travis<lists@petetravis.com> writes:
>>> I have three or four displays attached to two different nvidia GPUs.
>>> I have noticed that a nouveau driven setup handles window management
>>> much more sanely, and provides adequate 3D support for my purposes.
>>
>> Three displays is easy. One desktop on three displays is harder. Do
>> you have one desktop? Can you open a window and make it as big as all
>> three montors, as if they were one monitor?
>
> I do not, DJ, but that's exactly what I want. Any recommendations as far
> as video card setup? I was thinking two identical 1X PCI Express cards
> with two outputs each and the proprietary NVidia driver. Thoughts?
>
> Thomas


That's what we use…

We have 4 total outputs, but have only configured 3 for actual use.

And yes, it's a single desktop, I can open an xterm as large as all three monitors..
--
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Head Systems Geek,
Waver of Deceased Chickens.
Optivus Proton Therapy, Inc.
P.O. Box 608
Loma Linda, California 92354
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Old 12-01-2011, 06:43 PM
Blake Hudson
 
Default Anyone got three monitors working?

Mike Park wrote the following on 11/28/2011 12:55 PM:
> On Sun, Nov 27, 2011 at 11:41 AM, Thomas Cameron
> <thomas.cameron@camerontech.com> wrote:
>
>> I'd *really* love to do triple head - the monitor in front of me for my
>> main work, and the two side screens for supporting stuff.
>>
>> I am wondering, since my motherboard has a four PCI Express x1 ports and
>> I see PCI Express x1 video cards for decent prices, if I can either
>> replace my single card with two identical two-port X1 cards, or just add
>> a single X1 video card to what I already have and get triple head.
>>
>> Has anyone done this?
>>
> I haven't tried using separate display adapters, but I'm currently
> running F15 on triple head using an ATi Radeon HD 5770 card (I'll
> confirm this model once I get back from work). This card, if I recall
> correctly, offers (2) DVI ports and (1) DisplayPort port (I had to
> purchase a separate DisplayPort->DVI adapter), which fired up my
> desktop on all three screens w/ minimal fiddling (on both Gnome 3 and
> KDE 4).

Any ATi card that includes the "eyefinity" feature supports 3 or more
monitors. These cards use DVI/DP (HDMI cards do not support eyefinity to
my knowledge) and will have 3 video output ports. I've purchased several
HD5450 cards for ~ $30 that work fine in other OS's. I have no idea of
the current state of ATi drivers in Linux. In general, Nvidia has had a
better history of Linux support compared to ATi.
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Old 12-02-2011, 12:00 AM
DJ Delorie
 
Default Anyone got three monitors working?

Thomas Cameron <thomas.cameron@camerontech.com> writes:
> I do not, DJ, but that's exactly what I want. Any recommendations as far
> as video card setup? I was thinking two identical 1X PCI Express cards
> with two outputs each and the proprietary NVidia driver. Thoughts?

This is my xorg.conf, specific to my monitor layout of course (one 30"
and three 20", two 9800GT PCIe cards (despite the 7950GS in the text,
it's an old file)).

Section "ServerLayout"
Identifier "Layout0"
screen 0 "Screen0" 0 0
screen 1 "Screen2" LeftOf "Screen0"
screen 2 "Screen3" RightOf "Screen0"
screen 3 "Screen1" RightOf "Screen3"
Inputdevice "Keyboard0" "CoreKeyboard"
Inputdevice "Mouse0" "CorePointer"
Option "Xinerama" "true"
EndSection

#Section "Files"
#ModulePath "/usr/lib/xorg/modules/extensions/nvidia"
#ModulePath "/usr/lib/xorg/modules"
#FontPath "unix/:7100"
#EndSection

Section "Module"
Load "extmod"
Load "glx"
Load "dbe"
Load "extmod"
EndSection

Section "ServerFlags"
Option "AIGLX" "on"
Option "IgnoreABI" "true"
Option "DontZap" "false"
EndSection

Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "yes"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Dell"
ModelName "3008WFP 2560x1600"
HorizSync 31.0 - 94.0
VertRefresh 56.0 - 86.0
Option "dpms"
EndSection

Section "Monitor"
Identifier "Monitor1"
VendorName "Dell"
ModelName "2001FP 1600x1200"
HorizSync 31.0 - 80.0
VertRefresh 56.0 - 76.0
Option "dpms"
EndSection

Section "Monitor"
Identifier "Monitor2"
VendorName "Dell"
ModelName "2001FP 1600x1200"
HorizSync 31.0 - 80.0
VertRefresh 56.0 - 76.0
Option "dpms"
EndSection

Section "Monitor"
Identifier "Monitor3"
VendorName "Dell"
ModelName "2001FP 1600x1200"
HorizSync 31.0 - 80.0
VertRefresh 56.0 - 76.0
Option "dpms"
EndSection



Section "Device"
Identifier "Videocard0"
Driver "nvidia"
VendorName "nvidia"
BoardName "nvidia 7950GS"
Option "RandRRotation" "off"
BusID "PCI:2:0:0"
Screen 0
Option "RenderAccel" "true"
Option "NoRenderExtension" "false"
Option "DamageEvents" "true"
EndSection

Section "Device"
Identifier "Videocard1"
Driver "nvidia"
VendorName "nvidia"
BoardName "nvidia 7950GS"
Option "RandRRotation" "off"
BusID "PCI:2:0:0"
Screen 1
Option "RenderAccel" "true"
Option "NoRenderExtension" "false"
Option "DamageEvents" "true"
EndSection

Section "Device"
Identifier "Videocard2"
Driver "nvidia"
VendorName "nvidia"
BoardName "nvidia 7950GS"
Option "RandRRotation" "off"
BusID "PCI:3:0:0"
Screen 0
#Option "Rotate" "CCW"
Option "Rotate" "Left"
Option "RenderAccel" "true"
Option "NoRenderExtension" "false"
Option "DamageEvents" "true"
EndSection

Section "Device"
Identifier "Videocard3"
Driver "nvidia"
VendorName "nvidia"
BoardName "nvidia 7950GS"
Option "RandRRotation" "off"
BusID "PCI:3:0:0"
Screen 1
#Option "Rotate" "CCW"
Option "Rotate" "Left"
Option "RenderAccel" "true"
Option "NoRenderExtension" "false"
Option "DamageEvents" "true"
EndSection



Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
Option "AddARGBGLXVisuals" "True"
Option "DisableGLXRootClipping" "True"
SubSection "Display"
Viewport 0 0
Depth 24
Modes "2560x1600"
EndSubSection
EndSection

Section "Screen"
Identifier "Screen1"
Device "Videocard1"
Monitor "Monitor1"
DefaultDepth 24
Option "AddARGBGLXVisuals" "True"
Option "DisableGLXRootClipping" "True"
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1600x1200"
EndSubSection
EndSection

Section "Screen"
Identifier "Screen2"
Device "Videocard2"
Monitor "Monitor2"
DefaultDepth 24
Option "AddARGBGLXVisuals" "True"
Option "DisableGLXRootClipping" "True"
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1600x1200"
EndSubSection
EndSection

Section "Screen"
Identifier "Screen3"
Device "Videocard3"
Monitor "Monitor3"
DefaultDepth 24
Option "AddARGBGLXVisuals" "True"
Option "DisableGLXRootClipping" "True"
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1600x1200"
EndSubSection
EndSection



Section "Extensions"
Option "Composite" "Disable"
EndSection

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