Ubuntu :: 3 Monitors To Work With 2 Video Cards?

Jan 24, 2011

Been looking around and have been trying for 4 days to get my 3 monitors to work with my 2 video cards , When the system starts up I get the bootup screens on the 3rd monitor , then the login box shows up on the 1st monitor and when logging out I see the shutdown screen on the 3rd monitor again , so I know ubuntu see's it , but not sure how to include it in the regular desktop . It's just a lighted very dark red and I can't move my mouse or any windows over to it , here is my xorg.conf that I modified and tried to get it to work with :

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 260.19.06 (buildd@palmer) Mon Oct 4 16:01:38 UTC 2010
Section "ServerLayout"
Identifier "Layout0"


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Ubuntu :: Configure Three Monitors Run Across Two Video Cards?

Jul 12, 2010

I was just wondering if is an easy way to configure three monitors run across two video cards (Nvidia Leadtek GTS250 PCI-E 2.0 1G 2DVI ) 2 on one, 1 on the other under the one xserver? I tried to get it going using the Nvidia driver package with no luck - 2 monitors seemed to be simple to configure using Twinview setting on a single xserver (my current settings) and I was hoping their may be a simple extension for three and if so is there an easy way to go about this? (I am new to Ubuntu).


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Ubuntu :: Multiple Monitors And Video Cards?

Dec 14, 2010

I've been using linux for roughly 12 years now but I've always avoided linux on the desktop since touching X back in the day was quite a hassle. I recently decided that rather than keeping my windows desktop full of 15 PuTTY instances, I should rock the *nix desktop.

I started by installing Ubuntu 10.10 Desktop. It detected my two monitors handing off a pci express card just fine. I decided to install the ATI drivers when it prompted me - the proprietary drivers would let me select to use the monitors separately, but would always just default back to mirroring the screens. I was unable to get it to stop that, so I had to go back to the open source drivers. Which is fine, I don't really need the 3d accel. Roll forward a week, I ordered another video card to add another screen. I purchased another ATI card, since word on the street is that same-vendor chipsets play best together. This one had to be PCI, if this matters.

dmesg reports the new card is fine and happy, but the Monitors GUI thing doesn't detect any monitors off the new card, or report anything about it. So: what should I do to make the second video card get noticed?[URL]...

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General :: Ubuntu 3 Monitors, 2 Video Cards Not Working?

Mar 14, 2011

I'm trying to get ubuntu working w/ 3 monitors. I have been given 2 video cards

lspci | grep VGA
20:01:00.0 VGA compatible controller: ATI Technologies Inc RV620 LE [Radeon HD 3450]
25:05:00.0 VGA compatible controller: nVidia Corporation NV44A [GeForce 6200] (rev a1)

I have had it working w/ two monitors plugged into the ATI correctly. and the nVidia monitor blank. Now I have the nVidia monitor working and one monitor from the ATI working, but I can't seem to get the last monitor to show anything. It does show the boot screen and works up until the point you are presented w/ the login screen for ubuntu, then it disappears and the nVidia monitor turns on. Might I have something wrong w/ my xorg.conf or do I need to do something more to get this to work? Currently I'm seeing this error in my Xorg.0.log file, but I'm not sure where to go from here:

[ 24.746] (EE) RADEON(2): reusing fd for second head
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 270.29 (buildmeister@swio-display-x86-rhel47-02.nvid


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Ubuntu :: Enabling Dual Monitors With Older ATI Video Cards

Oct 19, 2010

Is there a simple way to have both of the monitors on a system enabled? The video cards are both older ATI cards. One is a Radeon 9000 AGP 64MB, and the other is quite a bit older (ATI 3D Rage Pro 2x). When Ubuntu 10.10 is booting up, the splash screen appears nicely on the left-side monitor, and then the final desktop appears on the right-side monitor, but when I go to system --> preferences --> monitors, only one monitor is available. I'm guessing the right monitor is fed by the Radeon (I can check if it matters). If the splash screen appears on the left side when booting, why isn't that display available after the bootup has completed?

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Ubuntu :: Multi-Monitors: Can ATI + Nvidia Video Cards Co-Exist

Apr 8, 2011

As described in further detail below I am looking for some help in Ubuntu 10.10 with a multi-monitor + multi-gpu setup using both ATI and Nvidia video cards installed within the same system (que scoffs and jeers). Is it possible to sucessfully run both ATI and NVidia GPU's and Drivers simultaneously in Ubuntu 10.10 (think multi-monitor environment)? I am asking b/c I am having trouble figuring out how to manage my video cards - particularly ATI - within a multi-monitor + multi-gpu video card environment.

Here's the setup:

Ubuntu 10.10 Maverick Meerkat
x2 - NVidia 6800XT SLi GPU's + 2 DVI outputs/per card (Serviceable card for my needs)
x1 - ATI Rage XL PCI Card + 1 VGA output (Yes, ancient hardware...I know)


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Ubuntu Multimedia :: Shopping Video CardS For Multiple Monitors?

Aug 16, 2011

I'm about to start a new build for my primary machine at home. The plan is to load up a server/workstation motherboard (ASUS KGPE-D16) with two 8-core chip, as much RAM as it will take (32GB) and to put two graphics cards in it. One to power my main 24" monitor (ideally via HDMI) and the other card to power two screens, one 24" on each left and right side via DVI (unless I can find a dual-HDMI card that meets my needs).

Does that make sense? Here's my question for this awesome group of intelligent individuals: What video card model should I choose? Obviously, I'd like them to match so I can SLI / CrossFire if I really want to, but what setup should I plan on to have a good experience managing multiple displays on multiple video cards?

Oh, and budget is probably up to about $300 per card, maybe a little more if it makes a lot of sense.I'm not alone in having tons of problems with trying to get multi monitor support in the last few versions of Ubuntu, and honestly it's the only reason why I'm still running Windows7: the multi monitor support is just SO DAMNED easy! I shouldn't have to spend this much energy thinking about video card model- it should just work, shouldn't it?

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General :: Get Multiple Video Cards To Work?

Mar 7, 2010

I installed fedora 12.

I have 2 ATI cards that I used to use on windows to run 4 monitors. A recurring problem has been to get them detected in linux. Only my secondary card is picked up linux. When I manage the displays it detects the 2 monitors connected that card.

What are the specific steps I should take to get the second card detected? Supposedly there is a tool system-config-xfree. I don't have it, yum can't find it.

Also I heard it has something to do with editing some xorg.conf file or something to that effect. I have absolutely no idea how to find the "bus id" of my card, or lookup the horizontal refresh rates, etc..

I would probably have no problem following the documentation & editing the file if I knew a good way to find these values.

Someone also suggested installing linux twice and saving the xorg.conf it generates each time (with different card each time) and then merging the two by hand. That is like killing a fly with a hammer though, when I do this again and again in the future It'd be nice to not have to take twice as long.

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Ubuntu Installation :: Two Monitors On Two Graphic Cards?

Jun 10, 2011

I'm using Ubuntu 11.04. I should have two graphic cards, and they are both detected in the terminal.

lspci | grep VGA
02:00.0 VGA compatible controller [0300]: nVidia Corporation C77 [GeForce 8200] [10de:084b] (rev a2)
03:00.0 VGA compatible controller [0300]: nVidia Corporation G98 [GeForce 8400GS] [10de:10c3] (rev a2)

Both cards have monitors plugged into their VGA ports, but only one of the monitors shows a display. The other monitor goes into power saver mode right after start up. Nvidia X Server settings only shows a single graphics card (the 8200) and a single monitor (detect monitor finds nothing). Going through Prefences: Monitors also only shows a single monitor and doesn't detect a thing when detect monitors is clicked.

Monitor one has 1440 x 900 resolution and I'm not sure what the resolution of Monitor two is supposed to be, but it displays rather nicely at being set to 1440 x 900.

Both graphics cards are detected and usable in Vista, but a quick switch of the plugs shows that only the 8200 is registering in Ubuntu.

Ideally I want to have a dual monitor set up, with one screen showing documents or pictures with the other using Gimp or Blender.

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Hardware :: Help Setting Up 3 Monitors On Two Cards

Jul 26, 2009

Edit: FIXED, see 2nd 1/2 for correct config...Id like for someone to look over my xorg.conf and tell me what I'm doing wrong. Just a bit of background I'm using an Matrox G450 Multihead and a Nvidia MX4000 and have three monitors. Id like the G450 multi head to fire on the far left and far right and the nvidia to run in the center. The desktop should be extended across all three.

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Hardware :: Two Monitors On Two Graphics Cards?

May 7, 2010

I have an ACER Veriton 7600GT, with an internal Intel 82865G, which drives the main monitor and a Radeon 9250 which drives a second monitor (on its first port) - it all works fine under XP.I've had no luck at all trying to get any version of linux to cope with this. I've been trying live cds..PCLinuxOS and Mandriva will not boot except in 'safe mode' and then run with the wrong resolution for the main monitor and ignore the second one.

Ubuntu boots OK for primary but ignores the second monitor (I'm not keen on ubuntu anyway because of instability on other machines).OpenSUSE boots OK for primary and seemed to offer some hope of setting up the second monitor. However, after this discussion it seems to have come down to trying the latest development milestone.There is quite a lot of diagnostics in the above discussion and I'm wondering if anyone here has any experience of this sort of thing? The problem seems very fundamental in the sense that (even with all the tests) I've never seen the second monitor even receive a signal and wake up under any version of linux.

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Ubuntu Multimedia :: ATI Radeon - 2 Cards And 3 Monitors (Xinerama)

May 21, 2010

After working on trying to get my 3 monitors to work with Ubuntu 10.4 and my ATI Radeon HD3200 (IGP) and HD4850 cards, I just had to share the xorg.conf. I am using the default open source drivers that came with 10.4 and I kept KMS enabled (it wouldn't work without it).

Here is my conf:
Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "4850-2-Screen"
Screen 1 "4850-1-Screen" RightOf "4850-2-Screen"
Screen 2 "3200-Screen" RightOf "4850-1-Screen"
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
Option "Xinerama" "on"
#OPtion "Clone" "off"
EndSection .....

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Ubuntu :: 2 Gfx Cards, 4 Monitors Fails X Fail Cycles?

Aug 20, 2010

I have 2 nvidia gfx cards, if I use the nvidia settings tool to view 2 monitors with the same gfx card works fine, when i use one gfx card for one monitor and the other gfx card for the other monitor X doesnt start and just cycles through monitor flashes.

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OpenSUSE Hardware :: Twin Monitors On Different Cards?

May 5, 2010

I've got an ACER Veriton 7600GT, with an internal Intel 82865G, which drives the main monitor and a Radeon 9250 which drives a second monitor (on its first port).The configuration seems to kill many live cds but not opensuse - that's the good news. The bad news is that, if I've understood this; Configuring graphics cards/Dual Head Mode - openSUSE, it should be detected and started in clone mode - it isn't. Running sax2 doesn't help (and that's the first thing in the XRandR instructions too. I've yet to see my second monitor so much as flicker. I would like to see this working on the live cd before I commit to installing opensuse.

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Debian Multimedia :: 2 Graphic Cards For 3 Monitors - Second Card Not Available

Apr 30, 2015

I inserted another graphics card to my computer to use 3 monitors. The card appears in lspci but I can't access it in gnome.

What do I have to do to set this up.

Here is the output of my xorg.log: [URL].....

$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530 [Radeon X1600 XT/X1650 GTO]

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Fedora :: Resolve An Ongoing Fight Involving /dev/video Node Assignment Between 2 TV Tuner Cards And USB Video Camera

Feb 27, 2011

I am trying to resolve an ongoing fight involving /dev/video node assignment between 2 TV Tuner cards and a USB video camera.

Each time I reboot the three devices seem to shuffle their /dev/video assignment. i.e. what was /dev/video0 (USB camera) after a reboot magically becomes /dev/video1.

This causes all kinds of grief between my MythBackend and ZoneMinder who expect the devices to have static assignments.

how to best solve this? I did a brief search and one solution appears to be to statically assign the devices.

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Ubuntu :: PCI Video Cards?

Jul 5, 2009

I am looking into buying a better graphics card, most likely Nvidia, for my HP D330 DT.How do you tell if the graphics card is compatible with your machine?One more thing, is there a way to tell if my GPU is an, AGP, PCI, or PCI express without opening my computer??

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Hardware :: Setup A 5 Monitors Setup Using 3 Cards?

Oct 8, 2010

I am trying to setup a 5 monitors setup using 3 cards, but I am stuck at 3 monitors for now. The third card is not plugged yet, so the current setup is:

NVIDIA 8800GT (binary driver 195.***)
--->1680x1050 LCD (VGA)
--->1680x1050 LCD (DVI)
ATI HD5450 (3 output, but I think the OSS driver only support 2, corrdct me if I am wrong) (OSS driver)
--->1280x1024 LCD (DVI)
---> 1366x768 TV (VGA)


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Ubuntu :: Switching Video Cards In 10.04/32?

Jul 17, 2010

I set up a Ubuntu machine using the OnBoard video, and it runs OK.

Now, I put a nVidia card in it (2009'ish 512mb), and there is no screen after the BIOS screen.

If I boot off a Live CD, everything is fine, so the card is supported.

How do I get Ubuntu to look for the new card on bootup? Do I have to reinstall? If so, will it wipe out the installed applications and data?

cd / (this gets you to root)
cd etc
sudo chmod 777 X11 (this permits changing names)
cd X11
sudo chmod 777 xorg.conf.failsafe


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Ubuntu :: Use 2 Video Cards For Just One Monitor?

Sep 6, 2010

I have 2 video cards installed, and I only have one 22" monitor (1680x1050 pixels).ATI Radeon HD 4290 Nvidia 7300 GT Silent How can I make the both video cards render OpenGL stuff at the same time? Is it even possible?

And which GPU is faster? ATI Radeon HD 4290?

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Ubuntu :: Alternative Video / Sounds Cards?

Oct 19, 2010

what would you recommend for ubuntu video/sound cards that work pretty much out of the box?


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Ubuntu :: How To Update Xorg To Change Video Cards

May 16, 2010

I have a video card (Nvidia) in my computer that I want in another computer. I am going to be using the onboard graphics instead. I am running Lucid 32bit.

When I start up using the onboard graphics, the BIOS screen appears, then I see the normal underscore "_" flashing in the top left corner, but when that is done, my screen turns black and the monitor shuts off. I tried running a live USB and everything was fine so it's not a problem with the graphics card compatibility. I think I have to try booting into the command line and typing

sudo dpkg-reconfigure xserver-xorg

but I don't know how to enter the command line. Is that what I have to do or is there a different way?

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Ubuntu :: Compatible PCI Video Cards Possibly With DVI Output?

Aug 19, 2010

I recently acquired an HP Pavilion 7845 and have since installed XUbuntu on it. The onboard video, which is shared with the main system memory, is OK. But I am wondering if there are any compatible PCI video cards (possibly with DVI output) so that I can use it with a 32-inch LCD TV I have.

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OpenSUSE Hardware :: How To Use The USB Video Cards

Aug 6, 2011

I am a new user to opensuse, coming from ubuntu. I have a usb to vga external video card that allows me to plug in an external monitor to a usb port.Tritton SEE2 UV150 Looking around there is a deb file available for ubuntu and the sources are on the suse build service. Though it does not say its available for suse. So im wondering if anyone else has used one of these devices and/or knows how I can get it to work. The pages i have found related are here:


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Hardware :: Avoid ATI Video Cards (again)?

Feb 25, 2010

I have recently decided to use ATI video cards again due to poor linux support several years ago. I currently have a Radeon HD 3000 series card however I have been unable to install the fglrx driver under Debian Lenny 64. It seems that the Catalyst 10.4 driver is not compatible with the Xorg version in Lenny.

So far the NVIDIA has been very good at making drivers available for the latest linux versions. I have been running Debian Sid with an NVIDIA card with relatively few problems.Is it still best to avoid ATI graphics cards or is this just a temporary problem?

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Debian Hardware :: 2 Video Cards With GNOME

Mar 22, 2014

I'm having problems configuring a second video card in Debian 7.4 on GNOME. I've tried running Xorg -configure but that errors. When I run xrandr that only seems to pick up 1 screen.

Here is a section of my xorg.conf file:

Code: Select allSection "Monitor"
   Identifier   "Monitor0"
   VendorName   "Monitor Vendor"
   ModelName    "Monitor Model"

[Code] .....

The current effect is that the second screen seems to fire up and display a debian logo, and I can move the mouse pointer on to it, but I can't place any windows on there. Also, every time I log out and log back in, GNOME creates an additional instance of the menus (I now have 3 "Applications" and 3 "Places"). It sort of suggests that it is trying to use multiple monitors, but getting it wrong.

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General :: Configure Multiple Video Cards?

Apr 27, 2010

In Ubuntu Lucid Lynx RC, I got NVidia's TwinView to work with 2 monitors in a single video card. But when I use the same monitors but split them between the video cards I can't make TwinView work and it starts a X server for each monitor. I want the same effect I had with one video card.

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Hardware :: Which Video Card Is Being Used On Notebook With Two Cards?

Jul 8, 2010

I have this Asus UL30VT notebook, with two video cards, an Nvidia G210M (which apparently isn't supported by Nvidia for Linux, but I've read somewhere that it's possible to make it work) and an Intel card (I can't find the model name). On Windows, it is possible to switch between these two cards for battery saving reasons. Anyway, I don't really care about this on Linux. I would just like to make the Nvidia card work somehow.

One of my doubts is: how do I know if Linux is detecting both video cards?What I'd like to know is, how can I make sure whether Linux is correctly detecting the Nvidia card or not? Is lspci enough?And if we suppose that Linux is aware of the presence of the Nvidia card, how do I know which card it's using? Right now I can infer it's using the Intel card from the X log, but is there any other way (I don't know, any "/proc/..." files) to know?

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Ubuntu Installation :: Two Monitors - Dual Video Card Setup?

Jan 9, 2010

I just got another video card from a friend and I wanted to see if I could get it to display a second screen. I have two monitors, both VGA CRT monitors. The first video card is a Geforce 8400gs pci-e and the card given to me is a Geforce FX 5500 pci. I could get them both to work separately under low graphics mode when I go into the bios and switch the video adapter from pci-e to pci, but not together. What to do to make both cards work in harmony?

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Fedora Hardware :: Configure Two Video Cards - ATI And Nvidia

Jan 31, 2010

Due to the miss of proprietary drivers from AMD for Fedora 12, I have installed a second video card in my system (a Nvidia one) for BOINC calculation. This card is not connected to a monitor.

So in the system I have this two cards:
ATI Shappire Radeon HD2600XT (256MB)
Asus Nvidia Geoforce 6600 (356MB)

The ATI is in the first PCI express device, the Nvidia to the second PCI express:


So I have used this Xorg configuration file (if I let Xorg to configure without the configuration file, it sets NVidia to default card and X files to start):


The Nvidia driver were installed as described in some forum:

1) disabling nouveau in grub configuration


2) Take SElinux to alow the driver:


With this, the driver is correctly loaded in memory:


But the Xorg says that not Nvidia Driver where found (see the attack file).

These are the NVIDIA driver installed:


What can I do to make NVIDIA driver to work?

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