Ubuntu :: How To Get Multiple Screens Setup
Jun 3, 2010
I was wondering when and/or how to get multiple screens setup and working in unison. Currently I have 3d rendering working but all of my screens work as separate desktops. They all have their own start menu and panel bar. I cannot move a window from screen to screen. I have to open a new window in that screen and then it is stuck on that screen and can not be move any where else. When is this going to be fixed because until it is unfortunately Micro Slop will still have my business. I am a power user and enjoy my 4 screens when they work in unison, not as individuals.
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Apr 29, 2011
After the installation I have 3 screens setup, on DVI, HDMI (to DVI) and DisplayPort this is using and AMD HD5570 video card. With this configuration mirrored everything is fine and I can see all three displays.However having 3 copies of the same display is worthless, so I want a separate desktop per display.This is when everything goes wrong, after making the change to have 3 displays it fails to work, ie it crashes with the message below (full log is attached as well)Now I can use any 2 monitors independently with the third one mirrored, but I can not have 3 independent monitors configured on the card without X crashing. The exact same config, did work fine in Windows (where I verified the setup).
Backtrace:
[ 352.624] 0: /usr/bin/X (xorg_backtrace+0x26) [0x4a2626]
[ 352.624] 1: /usr/bin/X (0x400000+0x6219a) [0x46219a]
[code]....
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Sep 24, 2010
My ubuntu 10.04 has two monitors connected both being treated as individual desktops.But only one desktop is showing the wifi network icon in the notification area.Is it possible to have more than one wifi icon going at one time?
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Feb 6, 2010
I used to use nvidia and Twinview to drive an LCD and CRT monitor as one big area. I've changed over to using the nv driver, and I gather that xinerama is deprecated now in favour of xrandr. But I can't get xrandr to even report anything about my two displays, and can't get any picture on the CRT. This is despite both being fully detected by X (according to the log file).
I've just changed over from using the nvidia driver to the nv driver. I did this because I discovered that the frequent system crashes while watching video was caused by the nvidia driver, partly because my card is a GeForce FX 5200, not supported by the current nvidia driver which contains bug fixes for the problem. So I've used Synaptic to remove all the nvidia drivers and add-ons, and installed nv and the libgl1-mesa-dri and libgl1-mesa-glx drivers.
I moved my old xorg.conf file aside and on a second X display ran X :1 -configure to generate a clean new xorg.conf and started from there. I'm doing all these experiments by modifying xorg.conf, and then on a second console running up X on display :1 to try it out. Another odd thing: xrandr doesn't report any "outputs" (since I'm using the nv driver, I'd expect to see DVI0 and VGA1), instead it just reports this:
Code:
# xrandr
Screen 0: minimum 640 x 200, current 2560 x 1024, maximum 2560 x 1024
default connected 2560x1024+0+0 0mm x 0mm
[code]....
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May 22, 2010
I have Nvidia Quadro NVS 440 with four 1280x1024 LCD monitors and Ive tried to upgrade Kubuntu from 9.10 to 10.04. Everything works well at 9.10. After upgrade, system is hanging and I cannot reach desktops in all monitors. Ive tried to reconfigure x server using Nvidia-settings control panel. This doesn�t work. So i tried to reinstall system from CD, because there should be something wrong with the upgrade, but the problem persist. Ive tried to reinstall with Ubuntu, but there is same problem.
My configuration of screens are: Screen 3 left of Screen 0, Screen 0, Screen 1 above Screen 0 and Screen 2 right of Screen 1, separate X screens and Xinerama enabled. Sometimes, if i reach upper edge of Screen 0, mouse will continue at the lower edge of screen 0. Screen 3 is not reachable and If I try to move mouse to it, system will hang and x server is automaticaly restarted. Ive tried to configure all screens with absolute positioning too, but this doesnt work either. My only option now is downgrade to 9.10 .
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May 30, 2011
This happen on a samsung NC10 (graphic chip: Intel 945GME). When I boot linux + gnome3 and no external screen is attached to my laptop, then, gnome 3 boots with the gnome shell (gnome 3 shell). If, at this stage (when logged in), I plug an external monitor to the laptop (and configure it using the monitor config tool), then I can run gnome 3 shell on my external monitor as well... BUT:
If I log in when the external screen is already plugged in, then gnome boots in fallback mode... with other words: Gnome3 seems to be able to run the graphic+screen with gnome 3, but the "fallback" detection seems not to beleive so...
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Dec 18, 2009
get multiple screens working in Xorg with the Intel driver? I can manage to get Dual Head working (one big screen), but I'm interested in having two seperate X sessions (two screens) instead.
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Feb 7, 2011
Today my cursor became distorted. It worked fine on the second screen, connected to my notebook and screenshots displayed it well. So I did a little googling, and found out, that it is a known bug. I followed different tutorials. And now my cursor is blinking and disappearing. And it drives me crazy. It was a lot better when it was distorted. My xorg.conf:
Code:
Section "ServerLayout"
Identifier "amdcccle Layout"
Screen 0 "Configured Screen Device" 0 0
Screen "amdcccle-Screen[2]-0" RightOf "Configured Screen Device"
[Code]...
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Jun 8, 2010
The 'Multiple Screens' tool, aka grandr, is very handy for setting up my dual monitors. But restarting my system restores the monitor setup to the (crummy) default settings. Is there a way to save these settings and make sure they are always applied when the OS boots? Putting these settings in my xorg.conf would be fine, but I'm not sure where or in what form the settings generated by grandr might be located, or if they're at all xorg.conf compatible.
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Jan 2, 2011
I have my computer set up to use separate x screens for both of my monitors and almost everything works perfectly. With this set up I don't have any problem displaying flash in full screen on either monitor like I had with twinview. I have it set up this way so that I can use my TV to display mythtv and still use my computer monitor to browse the web, etc. The only problem is that I use my iphone with hipporemote to give me a wireless keyboard/mouse. When using twinview this was not a problem as it was just one large desktop spread over two monitors.
However, switching to separate x screens seems to have broken the functionality of the vnc server. When using my physical keyboard and mouse I can just move the cursor off the side of monitor 1 to control monitor 2, however, if I'm connected via vnc the cursor gets "trapped" inside the active monitor. I can interact with each screen as expected but if I want to switch the mouse/keyboard focus to the other monitor I have to go to the computer and move the mouse to the desired monitor, which obviously defeats the purpose of using the iphone as a wireless remote.
So my question is this. Is there a way to assign a hotkey combination to switch the focus of keyboard and mouse that the vnc server is controlling? Or could I set the vnc server to only control one of the two x screens?
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Jul 4, 2011
Is it possible to set up a opensuse 11.4 multiseat system with four screens , keyboards and mouse.There is no xorg.conf anymore.
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May 6, 2011
I did set up dual monitors few times on few of my boxes, with 3 video cards :
Radeon 9250 AGP (have 2 of them) - with open source ATI driver
Geforce 6200 PCIE - with nouveau driver
In all cases I connect 2 LCDs. one 1440x900 or 1680x1050 to DVI and one 1280x1024 to VGA (all the cards have DVI and VGA out). The LCDs are the same ones tested with all cards :
1440x900 : Benq FP-92W
1680x1050 : Teac T2005L15 (identified as KTC2002 in xorg)
1280x1024 : Proview PQ-721KP
Tried on different boxes runnning Arch linux, different kernel / x / drivers / kde versions
Problem is - in all those setups, one monitor allways randomly blanks for a split second and comes back (incl. switching of the backlight, and displaying the "Source : VGA" or "Source : DVI" title as if it was switched off and on)
This happens randomly, but (more pronounced with the ATI cards) related to me clicking on stuff or the display changing (even if the changes are on the second screen)
With the Radeons only the monitor connected to DVI blanks. And the 2 radeons do it in different frequency, one is more often and one less
With the Geforce only the monitor connected to VGA blanks
When I test with 1 monitor (other one disabled in xorg) : Radeons sometimes still do that to DVI monitor but rare (much less than with VGA connected) (VGA monitor never blanks). Geforce does not do it at all and has problem only when 2 monitors are connected
I first thought its a hardware issue (the cards are from junk), but it happens the same with totally different hardware (exceps using same monitors) so i no longer think it is
There is nothing interesting in Xorg.0.log
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Feb 4, 2010
Im trying to setup multiple domU through the default bridge setup. I am able to access only one of them through the network at a time. If you ping one of the domU it works perfectly but you cannot ping any of the others until you stop pinging the one and even then it takes a bit before you can. Ive looked around for a while and seen similar problems but nothing ever seems quite the same. Im probably missing something really stupid. Or is this the way the bridge is supposed to behave? Do i need to use a routed virtual network?
[Code]....
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Oct 19, 2010
I have an Acer Aspire 4730Z laptop running Edubuntu 10.10 (32 bit, clean install). My problem is with the boot process. After boot and everything seems working properly, I will get the ?black screen of death? followed by the log in screen. Unfortunately, the display is made up of nothing but horizontal and vertical lines, leaving noting recognizable. I have to do a hard restart. I have to go through this process 2-4 times before I am up and running. The ?black screen of death? occurs right after I load any program
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Mar 27, 2010
I want to be able to install multiple operating systems on a disk setup with LVM. I am uncertain as to how to go about this.I read somewhere that you can do it, but that only one /boot partition should used for all systems(they are all linux).get going on this? Do I boot from an installation disk and follow that path some how...or is there some other method I should be following? And how do I use one boot partition for all OS's? I had a problem with this once before..so need to ask, especially with the LVM thrown in the mix.
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Jun 14, 2010
I am trying out conky for the first time and rather enjoying it. I have a small frustration though. I have a dual head setup and would like to have identical conky's showing on both monitors. I have tried creating two .conkyrc's (.conkyrc1 & .conkyrc2) and then using:-
Code:
$ conky -c config1
$ conky -c config2
to launch them, this results in only one of the two conky's displaying. I did at first think that maybe they were on top of eachother, but one conkyrc is set bottom_left, the other bottom_right so they should not be right??
When I try to run them as above terminal shows:-
Code:
gregg@burt:~$ conky -c config1
Conky: invalid configuration file 'config1'
Conky: invalid num arg for top. Must be between 1 and 10.
Conky: invalid num arg for top. Must be between 1 and 10.
Conky: invalid num arg for top. Must be between 1 and 10.
Conky: invalid num arg for top. Must be between 1 and 10.
Conky: invalid num arg for top. Must be between 1 and 10.
Conky: invalid num arg for top. Must be between 1 and 10.
Conky: forked to background, pid is 7017 .....
#NETWORK
${font Sans:size=9:weight=bold}${color grey}NETWORK ${hr 2}$color${font Sans:size=8:weight=bold}
${color grey} DOWNLOAD UPLOAD
${downspeedgraph eth0 30,115 000000 00ff00} ${alignr}${upspeedgraph eth0 30,115 000000 ff0000}$color
Processes 8 & 9 do not appear in my conky, just blank space between 7 & 10?? Also, the swap %age displays 'No swap%'?
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Sep 30, 2010
I want to setup my External HDD with multiple operating systems on it. My first question is, If i am running an AMD box at home, will my External drive boot on an intel machine some where else?
Second; How would i go about installing them on my external?
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Feb 4, 2011
I work at a local library. In a few days I am getting 8 new HP g72t laptops. Is there a way to do multiple installs of 10.10 with the same partition setup, installed programs, config settings , etc? I am a volunteer and have set up many ubuntu installs before but always had each machine old and different. Now I would like to automate all the installs somehow.I picked that laptop as linuxcity.com sells them with Ubuntu installed.I got them with windows and plan to remove win 7 and do Ubuntu 10.10
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Jul 24, 2011
I am just trying out Fedora for the first time (coming from Gentoo and later Ubuntu).
So far everything works fine, but I have one problem with the gnome display manager (gdm), which is responsible for the initial graphical login screen.
My graphics adapter (nvidia) has two dvi-outputs, and i use them both. One is my primary display, the other one is used for my projector (watching films etc).
When starting Fedora, unluckily, the gdm login screen is shown on the wrong output (the projector, which is only occasionally turned on). I'd like it to be shown on the primary display.
Now I learned that gdmsetup disappeared in this release of Fedora. How can I achieve this goal now? What I found out through research is that there is a config-file (/etc/gdm/custom.conf), which can be used to configure gdm. But I don't have a clue how to. I found the following official documentation: [URL].
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Jul 4, 2010
Im moving all my websites on a dedicated box. I had a cpanel hosting account, and now moving to a terminal and ssh system.I need some advice on choosing my mail setup. I need POP, SMTP, with multiple domains, as host for a few clients.I would like the most simple version.The server will only send +- 100 mails / day.I currently running Ubuntu Linux 10.04.
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Oct 10, 2010
I have recently setup an Ubuntu 10.04 Minimal x64 Server. I plan on setting it up as a mail server. I need a secure server, that has spam prevention on it. Im setting up around 50 domains and would like a web based control panel. What is the most secure mail server, that i can setup for multiple domains?
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Jan 7, 2010
Running CentOS 5.4 x64. Have successfully bridged eth2 with br2 by following the instructions here: [URL]../Networking (under the RHEL section) Have been running several KVM VMs successfully via this bridge.
I am now trying to bridge additional interfaces by using the same routine. Each bridge is named to correspond with the ethX device its bridged with.
Example of ifcfg-eth0 script:
DEVICE=eth0
HWADDR=00:16:76:D6:C9:45
ONBOOT=yes
BRIDGE=br0
[Code]...
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Jun 4, 2011
I actually have it installed on two of my computers. One is an older Acer Aspire 3100 that dual-boots windows 7 and Ubuntu 11.04, and an Acer Aspire ONE that has Ubuntu 11.04 as main OS. Before Ubuntu, (even currently) I'm a MAC user, and i'm really liking Ubuntu. On my 3100 it works just fine except the screen flicker on wake, but a quick reboot will solve that.
On my Aspire ONE i've had to re-install ubuntu multiple times. (we're talking 5 or 6 in the last month) Sometimes, it'll boot up to absolutely nothing. One time I got a weird error message everytime it booted. The last install froze up a lot, and eventually would only start to boot into setup. I reinstalled Ubuntu, again and it worked until I shut it off. Boot back up, same thing. Threw me right into setup. I was able to get around it after 5 or so tries of rebooting, hitting ALT F11 and somehow got into ubuntu recovery, but loaded normally. I'm using it now and it's working great currently.
Specs on the ONE
1.5GB Ram
8GB SSD (could this be the culprit?)
ATOM (1.8 or 1.6) GHz Processor.
Halfway through this fiasco, I put windows XP on it and used it solid for 3 days without any of the mentioned above issues.
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Nov 27, 2008
We have a new Bussiness DSL line with 16 public addresses.What we want is to setup a DMZ to run some services and internet to the LAN. Here's a schematic of what we want:
Code:
Backup Internet Main Internet
connection connection
| |
| |
SDSL Modem BDSL Modem
[code]....
The webserver has the following settings:
IP: 12.34.56.125
subnet: 255.255.255.240
gateway: 12.34.56.126
What IPTABLES rules do i need to setup to "see" all IP's in the DMZ-2 from the internet?
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Apr 15, 2009
So I have a pretty big networking nightmare on my hands right now. Stepped into the dog crap with this one, told my employer that I knew how to setup vmware servers right? Its not hard, install CentOS, install vmware, run the config tool, bridge the network, down the road we all go right? We have 3 servers running about 10 virtual servers.
Here is what we have all together.
CFU <- This is the internet. We have IP ranges xx.18.230 - xx.18.241 Gateway is xx.18.254 and subnet is xx.255.128
DELL PowerConnect 3348 Switch <- This is what everything is pretty much jammed into.
VMH1 <- This machine has 2 NICs
eth0 connects to the DELL switch somewhere on the upper 30+ ports
eth1 connects to the DELL switch on port 1.
It uses firestarter and is the gateway for our internal internet on 192.168.11.XX using IP 11.254. It has 4 vm's on it. One of them is the domain controller, hooked to eth1 using IP xx.11.1. The other one is a server for managing remote backups, it has an external IP linked to eth0 of xx.18.234. The other 2 vm's are for misc remote login stations that use internal ip addresses linked to eth1. It hasn't had a single problem communicating on either one of the ports..
VMH2 <- This server hosts a web server, and some other misc stations.
It hosts a web server on xx.18.230 and xx.18.231
It also hosts 2 workstations on a seperate network, through another router that is wireless....
Now, we have the problem child, VMH3
VMH3 <- This hosts...nothing. It sits and has a ton of storage, but does absolutely nothing, but won't communicate out either one of its network ports.
The xx.36.xx and xx.22.xx networks are there because we have multiple businesses in the building that shouldn't see each other.
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Jan 17, 2011
I want to know How to set up Subversion server to run Multiple Projects? I want something to manage it over the web or manage it over kloxo as I am currently using control panel kloxo.
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Mar 15, 2010
This is the current setup that we have: We have approx 20 clients who pay us to send out a type of e-mail called an E-Blast to their customers. We currently are using 5 Microsoft Windows Virtual Servers to do this. The problem is that those machines are starting to break down. There are times that it will take Microsoft Windows approx 9-10 hours to complete 1 job. This is way too long. We want to move away from Microsoft Windows for this particular type of job as it seems there are more customers who are wanting to use this type of advertising.
It seems that using a Linux Server "Command Line or Shell" environment would be the best way to go as there is no GUI like Windows. Since there is just text...that is something that would/should process very, very quickly.
I am in the process of setting up a new SMTP outbound mail server. This is the current software & configuration (what is installed on this new machine):
All of the customer data (Names, E-Mail Addresses, etc that these e-mails are going to) are currently loaded in a Microsoft SQL Database.
My machine that I am using is plugged into the DMZ. I have 1 ip address for the 1 network card. I have also added/bound 4 more ip addresses to that network card.
I have configured Postfix for Multiple IP Addresses.
I can, from the command line, send successful test e-mails and receive them in my personal account.
As far as I know everything is setup correctly. I can and will post requested information so that it can be verified that everything is setup correctly.
Here are a couple of my questions:
Ensure that I have my Network / Interfaces file and my Postfix's Master.cf/Main.cf files setup correctly?
How can I setup this server to be an Outbound SMTP server and get it to use all 5 of the IP Addresses to send these e-mails quickly?
What can I use to check and ensure that this server is in fact sending out emails on all 5 IP
Addresses (I heard that there is a program named "Postal" that may help in determing this).
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Jun 12, 2010
I now have 2 desktops running debian. I have virtual servers running in desktop 1, and I am hosting my photos using Gallery2. I have copied Gallery2 and the mysql over to desktop 2. I have entered port forward to desktop 1 using port 80 (using my router), and desktop 2 using port 1000. I can only access Gallery2 in desktop1. If I tried to access Gallery2 in desktop 2, I got re-directed to desktop1.
Questions:
1. Are home routers capable of port forward to more than one computers in a home network behind the firewall of the router? It is Belkin N+ router.
2. Can multiple virtual servers be setup in 2 desktops?
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Jul 23, 2015
I want to configure multiple virtual ethernet interfaces over a single physical ethernet interface (eth0) and for each virtual interface the MAC address must be unique and the IP address must be Static.Finally all the virtual interfaces must be able to communicate both internally and externally and the traffic should be captured using wireshark.
I need to have such kind of setup to communicate devices individually using one physical ethernet device.
Because I was fiddling with few kernel modules like MACVLAN and MACVTAP and successfully enabled those modules and rebuild kernel. Using macvlan and macvtap I can configure virtual interfaces with unique mac address and static IPs but while capturing packets using wireshark interfaces behave weirdly.
For example say on HOST machine I have 1 physical interface and created 3 virtual interfaces as shown below.
Interfaces :
eth0 (physical ethernet interface)
IP: 192.168.A.A
MAC: aa:aa:aa:aa:aa:aa
[Code] ....
First from above interfaces I started pinging eth0 internally from host machine in which it worked as usually.
Second I did same externally from other machine which is connected to the same network of Host machine, and this did work as usually.
Third I pinged first virtual interface veth0 both internally and externally and this also works and after that I did check source and destination MAC address using wireshark tool-where both showed up there respective MAC address.
Now triggers the issue, where I pinged second virtual interface same like I did for first one, but this time ping was success and where as in wireshark tool the MAC address for veth0 is picked by veth1. This is where I got stuck and this issue happened for all the remaining virtual interfaces.
I couldn't see any virtual interface showing their respective MAC address, as of the remaining except the first virtual interface has been picking the first veth0 mac address.
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Nov 2, 2010
I have a remote directory shared over NFS called tech with perms set as 0750 and owner set to root:tech. I have 2 groups: tech, and techAdmin. tech can read and execute within tech/. techAdmin can read, write, execute. I have 4 users: user1, user2, user3, user4. user1 and user2 is a member of techAdmin, user3 and user4 are members of tech. simple so far...but wait here's the problem. If user1 creates a file inside tech, user2 cant read or modify it because user1 owns it. Here's a few sites that reference this problem:
[code]....
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