Ubuntu Multimedia :: Set Up Separate X-Sessions Without An N-Vidia Card
Jan 29, 2011
I want to set up separate X-Sessions for my two monitors. One is an old CRT monitor which I will use as a TV due to it's size/resolution and the first is a laptop panel. First off, I don't have an NVidia card, I am running Intel graphics. Second, I have some general questions. First off would I need a separate desktop environment running on the second screen? How would I switch the focus between the screens? Is there anything else I should know about doing this? This is my lspci readout:
Code:
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 [Code].....
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Aug 18, 2011
I am starting to get more used to Fedora 15 and GNOME 3, but I still have one outstanding issue remaining. Before explaining the problem, I am using GNOME 3 in Fallback mode because I prefer the look and feel of the gnome-panel over the gnome-shell. Plus, I have performance issues using x11vnc in regular GNOME 3 mode that I do not see in Fallback mode. I cannot use Separate X Sessions (TwinView "0") and get the gnome-panel to launch without crashing. The gnome-panel works fine when I set the screen back to TwinView "1".
Here are the error messages when running from a terminal window:
(gnome-panel:5205): Gtk-CRITICAL **: gtk_style_context_get_background_color: assertion `priv->widget_path != NULL' failed
(gnome-panel:5205): Gtk-CRITICAL **: gtk_style_context_get: assertion `priv->widget_path != NULL' failed
Segmentation fault (core dumped)
Versions:
rpm -qa|grep -i gnome-panel
gnome-panel-libs-3.0.0.1-4.fc15.x86_64
gnome-panel-3.0.0.1-4.fc15.x86_64
gnome-panel-devel-3.0.0.1-4.fc15.x86_64 .....
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Jun 29, 2011
how to on enable ling separate X sessions with dual monitors in slackware? In rhel all I have to do is enable it under the nvidia-settings... In slackware it does not work that well... to what I understand you have to configure a separate x session...
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Sep 6, 2010
i am having dell inspiron 1540 laptop installed with ubuntu 10.04 (updated). i wanted to install LAMP(Linux,Apache,MySQL,PHP) for software development purpose.
but after restarting the system, following things occured:-Message box appears saying "Ubuntu is running in low-graphics mode" Your screen, graphics card and input device setting could not be detected... OK
Then i get prompt saying what would you like to do ?Run ubuntu in low-graphics mode for just one session.
i get a message starting display in one minute.....nothing happens ... i switch to text mode by pressing
escape. There is a brown color star before: Speech dispacher configured for user sessions.on battery state there is a infinte loop i.e. no response and system just hangs there...startx at text mode makes the screen blank...
Please tell which part of '/var/log/Xorg.0.log' sholud be scanned to find required information.
i am a new to ubuntu How to solve this problem i donot have internet connection and its important that i get it repaired as soon as possible....essential to get it running else i will be forced to goto Windows...
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Sep 20, 2015
I have been able to log into a tty[1-6] as root or my user, and then startx -- :1, while logged in as myuser and running X on tty7, , but this somehow skips my default desktop manager (GDM3) and boot straight into LXDE (with no menus!). In /etc/X11/default-diplay-manager I have: /usr/sbin/gdm3 ? How do I get startx -- :1 to start a desktop manager?
Related 2nd question: When I did the above startx -- :1, it would start the X session in the same tty (e.g. tty2) where I was logged in when running the startx command. It used to be (in older Linux versions) that startx -- :1 would start an X session on tty8 (and the default would be :0 on tty7). Is this the (new) way things are supposed to work?
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Sep 11, 2015
Running Jessie (with a low-pinned Debian-based repositories added to my sources.list (e.g. Kali, kxstudio) for those packages not currently available on Debian (like the Kali menu of security tools). Running on a HP 15-r189nd (Energy Star) laptop.
First question: How do I get GDM3 to add root as an option during login? I can type the root user name in. I don't need it to show the root user in the user list (would actually prefer to need to type it in), but I do want to be able to start an X session as root, since some of the Kali tools (e.g. nmap) needs root to function fully. If I type in root and try to start, it just takes me back to the GDM3 login.
Second question: When I want to select my Desktop Enviroment/Window Manager in GDM3, the list appears below the little gear so I can only see half of the list (xfce not visible to select). How do I change the GDM3 appearance/settings that will change the position of the DE list?
Third question: How do I get multiple X sessions running simultaneously? What I have been able to do, while logged in as myuser and running X on tty7, is to log into a tty[1-6] as root, and then startx -- :1, but this somehow skips my default desktop manager (GDM3) and boot straight into LXDE (with no menus!). In /etc/X11/default-diplay-manager I have: /usr/sbin/gdm3 ? How do I get startx -- :1 to start a desktop manager?
Fourth question: When I did the above startx -- :1 as root, it would start the X session in the same tty (e.g. tty2) where I was logged in as root running the startx command. It used to be (in older Linux versions) that startx -- :1 would start an X session on tty8 (and the default would be :0 on tty7). Is this the (new) way things are supposed to work? Or is there something wrong with my setup?
Question 5: Once I have started an LXDE session as root, how do I get it to show the full application menu that my regular user can see? Can I just copy the config files over? Which ones? Or is there a better way?
Question 6: Gnome used to start fine. Then I ran Gnome on Wayland once, and now regular Gnome (on X?) no longer runs, but give me a "Oops! Something went wrong" error and Alt-F4 just takes me back to GDM3. Classic Gnome and Gnome on Wayland still runs OK. Should I log a bug report?
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Mar 10, 2011
How would I add a window manager to the gnome sessions menu on debian squeeze please? The window manager has been compiled from sources.
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Jul 9, 2010
I want to separate video and audio from movie file, how to do it in Ubuntu? And how to combine video and audio in Ubuntu?
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Jun 12, 2011
Can anyone hint a program suitable for separating individual frames from a video stream?
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Sep 1, 2011
I'm trying to get my Dual Monitor setup working. I have a 1900x1080 LCD and a 1280x1020 LCD. Cards are dual nvidia 7600GT.
I had the system set up using TwinView for a while but I opted to switch over to "Separate X Screen" so that the two displays could serve as separate desktops with different functions. Initially they were both running off of GPU0 and everything was fine. I then decided to swap the smaller monitor over to GPU1 to make better use of my available resources. I have no issue using the nVidia configuration utility and all appears well but when I respart X it comes up with a black screen and a white mouse cursor and then just lags. The mouse moves initially but after a few minutes it freezes and the whole system locks. I have to hard reboot and then it comes up with only one monitor. Inspection of the xorg.conf file shows that it has disabled the second monitor in order to start X.
Can someone look at my xorg.conf and see if there's anything obvious that would cause it to break? Is there some issue with separate cards that is fundamentally different from a dual-head card?
Code:
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 1.0 (buildd@yellow) Fri Apr 9 11:51:21 UTC 2010
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 1.0 (buildmeister@builder62) Wed Nov 11 06:45:14 PST 2009
[Code].....
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Jun 10, 2010
I'm looking for a program that will allow me to remove the vocal from an audio file, and also provide the ability to remove background noise (as much as possible). I have an audio recording for a presentation we did at work recently, but the quality of the recording is not the best and there is quite a bit of background noise. I would like a way to clean up the file and amplify the vocals. I tried to use Audacity for this, but couldn't get it to work. Has anyone used a software program that provides this ability?
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Feb 18, 2010
I've played around with a second monitor, but so far I haven't found a satisfying solution. I am using a laptop with a GeForce 9600M GS graphics card. I have managed to set up twinview, but my monitors don't have the same height so I'd rather have something like the "seperate x screen" option. Or how I imagine that option would be like. After some problems with the nvidia configuration tool (I couldn't change the xorg.conf, until I read this: [URL] I now have two separate screens, but the second one is all empty, with black background and X-shaped mouse cursor.
There seems to be no window manager running, I can start programs there with -display :0.1 , but they don't get any frame decoration and, which is worse, no keyboard focus. I'd be fine with a fullscreen konsole there, so I don't really need a window manager, but I do need access from the keyboard. I'd prefer a setup that would allow me to easily (without editing xorg.conf) switch between using both monitors and using only one, because I don't always use the laptop at home.
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Jul 15, 2010
My video card developed problems, so I followed the suggestion in this thread:
Quote: Boot into recovery mode, then choose root, for a command prompt and enter
Code: dpkg-reconfigure -phigh xserver-xorg
but my ubuntu 10.04 32-bit system still won't boot. Shortly after the ubuntu logo comes up, before the login, my screen goes black and there is no more video signal. What else can I do to reset the video configuration? The card only has this info on it: I could put the card back in the system, reboot, and then pre-configure the system to drop to the intel 865G on-board video, but the msi card has intermittent problems and will spontaneously re-boot several times during the first ten minutes of turning on the system.
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Nov 19, 2010
I'm relatively new to Ubuntu and am just trying to get basic functionality without having to punt back to Windows applications on Wine (such as Irfanview).All I want to do is step through photos (by pressing a key, such as the space bar) to view & then press a keyclick to move the good ones to a separate folder.
This is so fundamental that I must assume there must be software in Ubuntu which can accomplish those two simple tasks (step through a folder and move a file to another folder). Yet, I have The Gimp, GNU Paint, Krita, KSnapshot, XFig, XPaint, etc., and none of them appear to have this basic functionality (which Irfanview has, but on Windows).
What program can view and easily MOVE the photo to a stated directory in a single keystroke? Note: All the programs can "open a file" and "save as" but this is NOT the desired fundamental operation. The fundamental operation is:
- Press a key (spacebar would be nice) to scroll to the next photo in a folder.
- Press another key combination ("control + m" would be nice) to move the photo to a stated folder
- The "index" should NOT be reset (that is, the next spacebar should show the next photograph in the folder, not jump back, perhaps hundreds of photos, to the first photo as The Gimp does, for example, after a save).
- It's ok to set the move-to folder the first time, but it should not ask each and every time which folder as it should be the default for the move command after the first move.
Note: I also tried making the icons in the Nautilus browser huge and then control-click selecting the good ones, but that makes ALL icons at all times huge, and the scroll in Nautilus is atrocious, so, in effect, that was a failure. I need a graphic program that performs this simple task. This is so fundamental of a need (to scroll through and move just the good photos to a stated folder) that I find it hard to believe I can't (yet) find a graphics display program capable of scrolling and moving photos.
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May 1, 2011
I did a clean install of 11.04 and I have experienced that my separate X-screen does not have the program-name bar with the minimize, close-buttons etc. It's my third monitor is a separate X and it does not really work since I cant close programs, maximize windows or move them around. I cant even write anything on it. The first two monitors work great as one X-screen, just as they did in 10.10. Ubuntu Classic, no Unity. Two monitors (one X) on a ATI HD6970 One monitor (the X-screen that doesn't work properly) on a ATI HD4870
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Sep 16, 2010
In nvidia-settings I see, alongwith Disabled and TwinView settings, "Separate X Server". I tried choosing the option for my LCD (connected via HDMI), but I get a blank screen, presumably since the LCD's X server has nothing to render.
How do I direct any application (say vlc) to use that X Server instead of the Monitor's X server?
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Jul 14, 2011
I have two seperated video clips, that captured same event from two cameras. i would like to create one clip, that will show one on the left side, the second on the right side, and play together.
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Apr 20, 2011
I have a video file in which the audio runs faster than the video, so they quickly go out of sync. The way to fix it would be to separate the audio and video streams, speed up the video (the audio is FINE, it's the video that's wrong), and then recombining them. What is the easiest way for doing that?
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Jan 2, 2010
GDM has no session options listed when I click on my username. I should have openbox and lxde. I read that GDM finds it's sessions from /usr/share/xsessions so I checked there and I have desktop files for both. currently I'm using WDM and it's working fine.
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Feb 9, 2010
Where is sessions in 9.10? How do i get it, Is it called something different.
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Oct 17, 2010
I have Lucid Lynx 10.04 installed on my eee 900ha and I'm unable to log in to my desktop.
Earlier today I logged in successfully and I uninstalled a couple of unused programs (pitivi, evolution, fspot, and another that I can't remember). I then shut down the computer. Later when I booted the computer back up, I was greeted with the usual ubuntu login screen but I noticed that there were no options in the sessions drop-up menu. I entered my login information and pressed enter, and the screen went black, then went back to the login screen again.
I'm using gnome.
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May 31, 2010
i have tightVNCserver running to provide me with a means of working on my machine whilst the wife watches mythTV on the (physical) display.
in 8.04 i used to have "gnome-panel &" as a line in my /home/mike/.vnc/xstartup file, and it worked fine, when i logged in via VNC i had a nice gnome panel to start apps from etc.
since 10.04 this stopped working and i had to change gnome-panel to gnome-session. this works... but now it loads everything up in the VNC window just like it does in my main window. this is a problem because it loads things like mythTV front end and so on... i don't want it to do that in my VNC window.
does anyone know how it might be possible for me to have two different 'types' of gnome session? Settings i change in System -> Preferences -> Startup Applications are common to both my VNC and my physical displays so i can't turn off mythTVfrontend in there to solve the problem.
i'm not sure why gnome-panel stopped working in my xstartup file, but it happened when i upgraded from 8.04 to 10.04. if i try it in the ugly xterm window on VNC i get:
Code:
Xlib: extension "RANDR" missing on display ":1.0".
** (gnome-panel:26161): WARNING **: Cannot register the panel shell: cannot connect to the session bus. the RANDR stuff i get when i launch gnome-session too so i think its the second bit that's the real problem.
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Jul 9, 2010
Is it way to have more "guest" sessions (more than one)?
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Aug 21, 2010
I'm trying to run multiple Graphical sessions. How can I do this? I have read the forum article from 2006 but I get an error when executing startx --:2 [URL]
When I follow this howto, this is the error I get
Code:
# startx --:2
Fatal server error:
Server is already active for display 0
If this server is no longer running, remove /tmp/.X0-lock and start again.
Please consult the The X.Org Foundation support at [URL] for help.
ddxSigGiveUp: Closing log
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Oct 4, 2010
Will it be possible to maintain multiple sessions from Ubuntu?Actually we are working on one open source application and we have setup this application on one of our Ubuntu machine and this would act as a server for other developer's windows machine. Is any utility available(preferable open source) using which we will be able to access the Ubuntu server from all 4-5 developer's Windows machines?
Our requirement will be to access the whole system including console and GUI (same like remotely access) by using different sessions so that all 4-5 developers can start work together on the same Ubuntu machine.
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Jan 7, 2011
i've been searching for an hour and i have no idea how to list that. the closest thing to what i need is ck-list-sessions, but it doesn't show my freenx display. i need something that would show all my displays running.
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Jul 14, 2011
I assume that any .desktop file that is found inside code...
but I do not see an entry for it in the list of sessions. The same is true if I go to "System -> Administration -> Login Screen" - I don't see all sessions in the list for the default sessions.
what's going on here? Do I need to tell GDM to go through this list again? I've tried restarting GDM but no success. This is ubuntu 11.04 btw.
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Aug 19, 2011
My KDE sessions freeze randomly- while only doing some basic work, browsing etc. Keyboard and mouse do not respond and I can just do the hard reset. how do I find what might be wrong? Where in the logs do I look??
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Mar 10, 2009
I am following directions to set up my Ubuntu Installation (8.10) for Netbook Remix. As part of the directions it asks me at the end to:
Add netbook-launcher (if using 8.10) to your startup programs. Go to System>Preferences>Sessions and add entry for this command.
I went to sessions to do it and see Netbook Launcher listed and selected to add it but it prompts me with the following menu:
Name
Command
Comment
What do I put in these blanks so that I can set this up? For Command it gives me the option to browse.
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Jan 3, 2010
Do you know where the Gedit saved sessions are located? In my case I saved a session and titled it 'Redit'. I'd like to backup this 'Redit' file.
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