Ubuntu :: Lucid Triple Monitor / 2nd GPU Not Recognized

May 14, 2010

I have recently upgraded to Lucid with a clean install. I have two NVIDIA GeForce 7300GT cards with 3 21" monitors connected to them (two to card 1, 1 to card 2 although sometimes I plug in my projector so its 2 to both).I previously had Karmic installed and was able to use all three (or four) monitors without any problems. Now, however, Nvidia-settings only recognizes the one GPU. It will only recognize one or the other. If I edit xorg.conf so that Screen0 is on PCI:3 instead of PCI:1 (where my two cards are located) It will switch over to that GPU, but I can not get both to work together at the same time.

I have tried using my old xorg.conf but it does not work. I've tried editing the current xorg to have one monitor running off of each card and it will not work.

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OpenSUSE Hardware :: Triple Monitor Setup: X Crashes When Moving To The Second Graphics Card (third Monitor)

Oct 22, 2010

This is a triple-monitor setup with two video cards, where the mouse pointer gets "stuck" if it tries to cross from one video card to the next one. It worked correctly in openSUSE 11.2 and doesn't work in openSUSE 11.3 with the same xorg.conf. This is a 64-bit openSUSE 11.3 with xorg 7.5-11.3 (the openSUSE prepackaged version). I've already tried NVidia drivers 256.53-16.1 (the openSUSE NVidia repository version) and 260.19.12 (the latest off of the NVidia website).

This is the same xorg.conf that I used successfully in openSUSE 11.2. I tried a new automatically generated xorg.conf using nvidia-settings and it had the same problem. This forum won't let me upload the relevant files, but here: [URL] is a tar-ball with my xorg.conf, Xorg.*.log, /var/log/messages, and the NVidia debugging output.

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Ubuntu :: Triple-booting Lucid / Vista And Mac OSX?

May 15, 2010

My laptop had Vista, I installed Lucid so I'm dualbooting with GRUB, and I'm wondering if anybody knows of a way to triple-boot with Mac OSX. Thanks in advance.

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Ubuntu :: Triple-boot OSX / Vista And Lucid?

Aug 8, 2010

How would I install OSX on my PC so it would still boot to GRUB? And how would I add OSX to GRUB? Or should I use some other bootloader?

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Ubuntu Installation :: Lucid / Hardy Triple Boot Query

May 28, 2010

I'm currently running Hardy and XP in a dual boot setup. I want to install Lucid but don't want to overwrite my working Hardy partition and am worried by the number of reported problems with Grub2. XP is currently taking up all of my first hard drive. Second hard drive is : Hardy, then swap, then separate /home. After a bit of research, does this sound like a good plan ? ...

- Use gparted from the Live CD to shrink my Windows partition (then make sure XP still boots OK )
- Create a new partition after XP on drive 1
- Install Lucid in this new partition, using Advanced option, and tell it use my existing swap and home partitions on drive 2 (with no format, of course)
- Write Grub to this new partition
- Boot Hardy, and edit grub manually ( or use StartUp Manager, will it detect Lucid and add it as an option ? )
- Reboot and get options for Hardy, XP, and Lucid.

Does that sound correct, especially the Grub bits? When I'm happy that Lucid is OK I'll probably install Grub from it to the MBR.

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Ubuntu :: Avant Window Navigator Over Triple Monitor System

Mar 31, 2011

I have been using AWN for years, having a startup script to run multiple instances of AWN and position it on each monitor correctly. This has worked fine but today I decided to upgrade the version of AWN. The only problem now being that the new version doesn't support multiple instances of AWN to be open at once.The new version of AWN does have an 'Add dock' button but that's no good as my setup isn't Xinerama so each monitor is it's own workspace, meaning I can't position the dock far left, because far left is the edge of the current monitor.

The ideal solution here would to be able to run multiple instances, as I can force each instance to a monitor with DISPLAY=0:1 etc.If anybody has any ideas on how to have AWN on each of the 3 monitors then please let me know.

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Debian Multimedia :: Triple Monitor Setup On Wheezy

Apr 29, 2015

I have some very strange issues with my tripple monitor setup on debian wheezy. I have acer aspire V3 laptop with i915 Intel (Intel® HD Graphics 4000) as part of i3 and nvidia GT 740M which I never managed to get working with or without optimus to any degree whatsoever. What I want is a reliably working triple monitro setup. I have 2 additional DELL u2412m monitors which I did manage to get to work on few occasions by more or less randomly turning stuff on and off via lxrand and KDE systemsettings (so I do knwo for a fact that tripple monitor setup works). Arandr doesn't work, and executing xrandr from cmd doesn't work. I can relatively easily get the 2 monitors to mirror each other, but to get them to work separately is extremy difficult. It's always the same error but the well known crt. For example:

xrandr --output VGA1 --mode 1920x1200 --pos 3840x0 --rotate normal
xrandr: Configure crtc 2 failed

xrandr --output VGA1 --mode 1920x1200 --rotate normal --right-of LVDS1
xrandr: Configure crtc 2 failed

When it did work I copied arandrs script in hopes it would work, but it doesn't. Obviously, here is the issue that the crtc can not be configured so if somoen could tell me why and how to get the damn thign to use a specific crtc it would be awesome. Also, I noticed that when I hit "identify monitors" in KDE systemtools, it would say VGA HDMI for both VGA and HDMI outputs.

Here is xrandr output from when it worked:

Code: Select allScreen 0: minimum 320 x 200, current 5760 x 1200, maximum 8192 x 8192
LVDS1 connected 1920x1080+1920+0 (0x46) normal (normal left inverted right x axis y axis) 382mm x 215mm
        Identifier: 0x42
        Timestamp:  143521
        Subpixel:   horizontal rgb
        Gamma:      1.0:1.0:1.0
        Brightness: 1.0

[Code] ......

Here is now:

Code: Select allScreen 0: minimum 320 x 200, current 3840 x 1200, maximum 8192 x 8192
LVDS1 connected 1920x1080+1920+0 (0x46) normal (normal left inverted right x axis y axis) 382mm x 215mm
        Identifier: 0x42
        Timestamp:  5817108
        Subpixel:   horizontal rgb
        Gamma:      1.0:1.0:1.0
        Brightness: 1.0

[Code] ....

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Ubuntu Multimedia :: Triple Monitor Xinerama - Cursor Movement Limited

Jun 6, 2010

UPDATE: I can get the wrapping to stop, but it offsets the image between monitors. It's like the center monitor's image was stretched upward, distorting the alignment with the side monitors, rather than just providing additional space at the top. If I switch it so the two side monitors are 120px lower than the center, (as i had it in 9.04) then the wrapping issue occurs again. This is frustrating. I could use some help. (64-bit Ubuntu 10.04)

After lots, and lots, and lots of googling, configuring, experimentation, and even unplugging and replugging, I finally got all 3 monitors working like I had them in 9.04... Or almost. The center monitor is larger than the two side monitors, being 1920x1200 compared to 1920x1080. When I move the mouse pointer on the center monitor, it hits a ceiling and disappears right around that extra 120 pixel area on top, and can be seen at the bottom of the screen.


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Hardware :: New Triple Monitor Desktop - What Graphics Card Required

Jan 5, 2011

What graphics card will support (without too much fiddling) three 24" displays? I just got rid of my mac and am now going to get a linux desktop. I am not sure what distro yet, probably fedora although I am thinking about arch. I have some experience in linux, although nearly none when it comes to hardware configurations. I have two 24" BenQ monitors (DVI and HDMI inputs) and will buy a third 24" display with the pc.

Now I have been looking at some forums about triple monitor setups, but they are almost all about troubleshooting existing hardware compatibility issues. I guess I am at an advantage since I haven't bough any hardware yet, so here is my question. What graphics card would you buy to support 3 24" displays together (meaning that I want to be able to drag windows from one display to the next). I was looking at the ATI HD 5770 and some mention of the eyefinity stuff.

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Ubuntu :: 10.4 Lucid Not Recognized ?

May 14, 2010

About two weeks ago I upgraded from Karmic to Lucid. The upgrade went fine, everything works wonderfull, except maybe for Wine but am still figuring that out.

What I find a bit strange is that on the boot-up screen (where I get the choice between the different OS's on my two hard-drives) I still see Karmic listed on the partition where I upgraded (see attachment: on /dev/sda1).

When I boot-up, I first get this message: Mounting: mounting none on /dev failed: no such device

This stays about 20 seconds on screen after which Lucid starts up and gives me the log-in screen.

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Ubuntu :: DVD Won't Autoplay Even Be Recognized - In Lucid?

Apr 28, 2010

I just installed 10.04 and am pleased w/ things, for the most part. However, I cannot get a DVD disc to play (a movie, for instance) or be recognized unless I shut down the system and restart (provided I have already launched a Web video, or something). The DVD-ROM is dead to the world as far as disc recognition goes.

Things were just great in Karmic so this is completely confusing to me.

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Ubuntu :: Dell Monitor Not Recognized

Jul 28, 2010

How do get Ubuntu to recognize a monitor? I am not able to change resolution which is very annoying. The page is too big on the monitor so I have to scroll at everything I read.

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Ubuntu :: Monitor Not Properly Recognized?

Nov 4, 2010

An "Asus VK222S" monitor has been incorrectly recognized as an "Ancor Communications Inc 22" by a fresh Ubuntu 10.10 amd64 installation. This is causing a vertical band of about 5cm, in the middle of the screen, to be out of focus/blurred. The problem was not present with the same monitor on other systems.

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Ubuntu / Apple :: Mackbook 5.2 : Monitor Not Recognized?

May 5, 2011

If I go under system preferences then monitor It says me that my monitor is not been reconized. I've got the nvidia proprietary driver enabled. ubuntu v.11.04 (Natty)

I've also noticed that my headphone's led jask is always on! Looking around I've found It could be an hardware problem only if built-in audio isn't working but I've got no problem with it.

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Ubuntu Installation :: Wireless NIC Not Recognized By Lucid Lubuntu LiveCD

May 17, 2010

I have a Netgear USB wireless NIC and neither Ubuntu or Lubuntu Live images can see it. I have tried copying wlan from another machine and installing the packages, but that doesn't work.

I recently seen a thread showing what the file is that is missing in the Lucid live images that was present on the Karmic and earlier images, but I can't find it nor remember what the file was called.

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Debian Hardware :: Additional VGA Monitor Not Recognized

Aug 6, 2014

I just installed Jessie in a new Toshiba Satellite C75D-B7260.

This is the ouput of inxi -G:

Code: Select allGraphics:  Card: Advanced Micro Devices [AMD/ATI] Mullins [Radeon APU A4-6000 with R2 Graphics]
           Display Server: X.Org 1.16.0 drivers: fbdev,ati,radeon (unloaded: vesa)
           Resolution: 1600x900@0.00hz
           GLX Renderer: Gallium 0.4 on llvmpipe (LLVM 3.4, 128 bits) GLX Version: 3.0 Mesa 10.2.4

This computer has a VGA connector which is dead, additional monitor does not see any VGA output.

Drivers reported by inxi are installed: fbdev, ati, radeon.

Also some tools for radeon in the repo, like radeontool, etc.

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Ubuntu Multimedia :: Graphics Card Not Recognized - Monitor Native Resolution Not Available

May 8, 2011

I actually do have a GeForce4 MX 460 in this pc. I have a 7950gt in a different pc. Oops. I guess the MX 460 cant do 1600x1200 on the dvi output but somehow it can do it on the vga output? I guess I could just use a vga connection instead of the dvi connection.

The problem I'm having is that my LCD monitor (acer AL2021) can't be used at it's native resolution of 1600x1200. This is probably because my GeForce 7950gt graphics card is not being recognized. Xorg seems to think my card is a GeForce4 M 460. (It's not, really!) I'm using Ubuntu 10.04 LTS.

Here's what I've been doing for the last few hours:

This didn't work. 1600x1200 is still not listed.

Tried to run nvidia driver installer:

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OpenSUSE Multimedia :: Monitor Not Recognized - Wrong Resolution

Jun 15, 2010

I have problem with resolution (@gnom desktop). In Yast --> videocard & monitor is all right. There is correct resolution 1366x768 (WXGA). Also the videocard ( I don't have really one, only chipset "Intel Mobile GM45" ) is correct recognized. But Monitor isn't recognized, and I don't know which one I have (It's notebook from acer).

Nevertheless if I go direct in monitor preferences (at the bottom the monitor with a ruler symbol) the resolution is set to 800x600 and I can only change to 640x480. The monitor is as 15" recognized (I have 15.4", even a bit more broadly - 1366x768) and now I don't know what to do. All symbols, all programs, everything is huge! How is it possible to configure the correct one resolution?

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Software :: Monitor Hooked Up To The Second Video Card Is Not Recognized?

Jan 5, 2010

I have three monitors. Two are hooked up to an ATI card and the third to an nVidia 6800 card. This third monitor is not being recognized. I tried installing nVidia's official Linux drivers but received an error that no compatible device is present. Going into System > Preferences > Display shows only my first two monitors. I'm running Ubuntu 9.10 x64.

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Ubuntu :: No SLI In Lucid - Dual Monitor?

May 2, 2010

Hard details first:

EVGA nForce 750i SLI mobo
E8400 Wolfdale OC@4.23Ghz
2x GeForce GTS 250 1Gb
2x Acer AL2216W

Soft details:

-Upgraded from 9.10 to 10.04
-I did not have a working SLI config in 9.10
-No matter what fix I tried, only one monitor
-Was running "190.53" 64-bit drivers
-I had spoofed the xorg.conf file to get both working, but only with both plugged into one board, and no SLI option enabled
-Functioning 3360x1050 workspace with the ability to move open apps across monitors, but unable to switch between multiple workspaces


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Fedora Hardware :: Monitor / Graphics Card Not Detected - Recognized To Work In Full Resolution

Oct 11, 2010

I installed a new copy of F13 this morning on my fairly new laptop.32 Bit Intel, 3GB Memory 120GB HDD. The problem I've got is that my Monitor/Graphics card is not getting detected and as a result I'm getting a horrible Resolution/Refresh rate. When I run

lspci | grep VGA

I get this 01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 771/671 PCIE VGA Display Adapter (rev 10). how I can get my monitor/graphics recognized to work in the Full Resolution.

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Ubuntu :: After Upgrade To Lucid Monitor Is Not Put To Sleep?

May 28, 2010

I upgraded a couple weeks ago and now my monitor doesn't go to sleep like it used to.

The settings in powermanagment show that it should go to sleep after 10 minutes.

Can someone point me in the right direction?

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Ubuntu Installation :: Install Lucid In Old 800x600 Monitor?

Sep 20, 2010

I'd like to install Ubuntu 10.04 but unfortunately I have and old Samsung low res (800x600) monitor and when I boot with the live Lucid USB pendrive the screen goes crazy and remains there forever.

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General :: Monitor Power And Lock Screen - Ubuntu Lucid

Oct 7, 2010

I'm trying to get my screen to turn off whenever I lock my screen. I know that in Power Management, there's an option to turn off the screen after a set amount of time, and I know about xset dpms force off, but the former doesn't allow me to turn off the screen from the logout menu, and the latter only turns the screen off for a short amount of time (1 minute or so. The screen just turns back on by itself).

Is there a script I can modify to change what happens when "Lock screen" from the logout menu is selected, or is there a script I can add to the panel to lock the screen and then turn the monitor off (and turning it back on when I shake the mouse or something)?

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Ubuntu Multimedia :: Lucid Upgrade Breaks Dual Monitor Set Up?

May 1, 2010

When Karmic came along, I upgraded and it was possible for the first time to get a dual monitor display working using only the GUI apps supplied. (I think I used screen resolution) It worked out of the box and took no time whatsoever.

I had a dual monitor set up working with 2 1024 x 768 monitors, with a desktop spanning both, and a background picture doing the same.

The Lucid update has just spectacularly broken this, along with a large number of desktop type changes that were unwanted.

The version of Ubuntu was the usual vanilla, but with enough K stuff installed to make K3b work. The card is a Radeon 9250SE.

Give up and re-install Karmic? Wait for some sort of upgrade to allow either Monitors or Multiple Screens to work - the option to remove cloning is greyed out in one and unticking clone in the other does nothing? Try some other distro?

Does anyone know of a decision to remove any functionality from Lucid that existed in Karmic? Is there any useful background to this that is perhaps not obvious?

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Ubuntu Installation :: Lucid Upgrade Broke Monitor Setup?

May 2, 2010

Upon upgrading from Karmic to Lucid, Everything comes up, seemingly fine. Once logged in to the OS, my three monitors show the desktop wallpaper as well as all the icons on the desktop. A few programs that I have set to autostart do so.

However for some reason, I can only access one of the three monitors. (And not the one with the gnome-panel.) As soon as I drag my mouse from my third monitor onto the one next to it, I loose complete control of it, and it starts dancing all over the place. If I try to drag a window from one screen to the next (using Alt-Left CLick + drag and not moving the mouse onto the other monitor), the the app goes from one side of the working monitor to the other side (like it's wrapping around). Though I can see it on the other monitor for a little bit until I get it far enough for it to wrap.

Here is my xorg.conf:


Section "Files"
FontPath "/usr/share/fonts/X11/misc"
FontPath "/usr/share/fonts/X11/100dpi/:unscaled"
FontPath "/usr/share/fonts/X11/75dpi/:unscaled"


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Ubuntu Installation :: Monitor Sleep Glitch Got Worse In Lucid

May 4, 2010

You know that glitch where your monitor doesn't come back after switching off for power saving? That's gotten WAY worse since switching to Lucid. It used to happen every other day or so, now it happens 2-3 times a day. Songbird used to keep it from switching off on Karmic, but Songbird doesn't work on Lucid so that's out the window.

Also: as similar error happened when restarting after the glitch happened this latest time. Ubuntu started running its routine disk check and I hit C to skip it. The screen went down like it does in the Monitor Sleep glitch. I reset again, it did it again. Eventually, I just let it do the check. This has NEVER happened before.

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Ubuntu :: Monitor And Lucid Update Wreaking Havoc On System?

May 27, 2010

I got a new monitor for christmas this year and just reinstalled ubuntu (jaunty) not too long ago, like about a month. I finally got around to updating about two or three weeks ago to lucid. Now my monitor and lucid are fighting like some crazed technological married couple. Basically, when I boot, a screen resembling kernel panic comes up for a while, and then normal boot resumes. A box comes up and says "monitor config file is either blank or contained only whitespace". If my computer limps itself along to the desktop, I find that my resolution is stuck on 1900x1080 and the icons that usually exist on my top panel are either gone or moved to the right. Under Preferences > Monitors it says unknown for my monitor, I only have the 1900x1080 option for res and my refresh rate says zero hertz.

Beyond that, my computer seems to enjoy randomly rebooting itself (sometimes even before it reaches the boot options screen) and my monitor has strange streaks/dots running up, down and across it that change when I hit keys or move the mouse, even without changing anything on screen. I know that that's alot of info to sort through but I've tried all sorts of things far and wide trying to fix this. Including screwing with xorg.conf and trying to install the ATI proprietary drivers.

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Ubuntu :: Lucid Boot Hangs When Using Thinkpad With Monitor / Sort It?

Aug 15, 2010

I use an IBM Thinkpad T30 with an ATI Radeon Mobility 7500 graphics card as my work machine, mostly at a desk, using a docking station to link it into a monitor. I upgraded to Lucid last weekend. When using the integral screen on the laptop the graphics have been fine, but when using a monitor I initially got some very poor contrast, brightness and gamma output, described in this bug.


According to the advice in that bug report, I upgraded the kernel, with Kernelcheck automatically updating me to 2.6.35-candela. Now, rather than poor graphics with the monitor it just hangs on the splash screen, displaying the words Ubuntu with the dots underneath.

Reading around, when similar problems have been seen in previous versions of Ubuntu it has been a graphics issue, which fits. One piece of advice I've seen quite commonly is to remove the "quiet splash" from grub, which I've tried but doesn't work. I am tempted to try and work through the different grub commands these guys used to tackle a similar problem with the live CD:


But am a bit reticent as I don't know what they all do.

As an aside, the 2.6.35-candela kernel brings up a bunch of errors on boot, described at the link below, but reading that thread they don't look like they would cause my problem:


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Ubuntu Multimedia :: Unable To Use Quad Monitor ATI FGLX On Lucid Lynx?

May 23, 2010

I'm having an annoying issue with my display configuration.

Some specs:

Motherboard: MSI 760gm-e51
CPU: AMD Phenom II 955 Quadcore
MEM: 8Gbs DDR3
VGA: ATI Radeon HD4850
ATI Radeon 3000 (on board)

All four monitors work fine with two X servers ( 2 monitors each instances) on Ubuntu 9.10 with surroundview enabled in the BIOS. I did a fresh install of Ubuntu 10.4 and all i get is 4 blank screens. when i disable surroundview in the BIOS with PCIE as default display the HD4850 work great. I should add that on both installs i used the latest atalyst 10.4. It seems like there's something wrong with Ubuntu 10.04.

Here's the xorg.conf of the working Ubuntu 9.10:


Section "ServerLayout"
Identifier "aticonfig Layout"
Screen 0 "aticonfig-Screen[0]-0" 0 1050
Screen "amdcccle-Screen[1]-0" 624 0


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