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Thread: Is Gnome running behind KDE?

  1. #1

    Default Is Gnome running behind KDE?

    Hi everyone. Machine: OpenSUSE 12.1 with Gnome3 and now KDE4 installed.

    So I had only Gnome3 for a long time installed but grew tired of its limitations and wanted to jump back to KDE. Wife loves Gnome so I just installed KDE on this system following this guide: SDB:KDE install - openSUSE

    Everything went fine and KDE works great. The only issue that I'm experiencing is when I log out of the KDE session, my Gnome desktop briefly flashes on the screen! Almost like Gnome is running behind KDE. I can take a cell phone vid if anyone is that curious. Is Gnome running behind KDE? If so, how do I make it not run? Don't need two desktops running at the same time.

  2. #2
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    Default Re: Is Gnome running behind KDE?

    Two desktops cannot run at the same time, I suspect that nautilus (the
    filemanager) is somehow started even if you start KDE and leads to that
    artifact. I remeber that I have seen that in 12.1 on one machine.
    What do you see when you run
    Code:
    ls /usr/share/autostart
    ls /etc/xdg/autostart
    ?

    --
    PC: oS 12.2 x86_64 | i7-2600@3.40GHz | 16GB | KDE 4.8.5 | GeForce GT 420
    ThinkPad E320: oS 12.2 x86_64 | i3@2.30GHz | 8GB | KDE 4.9.3 | HD 3000
    eCAFE 800: oS 11.4 i586 | AMD Geode LX 800@500MHz | 512MB | lamp server

  3. #3
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    Default Re: Is Gnome running behind KDE?

    And check your running processes in the KDE session to see if a nautilus
    instance is there
    Code:
    ps aux | grep nautilus
    --
    PC: oS 12.2 x86_64 | i7-2600@3.40GHz | 16GB | KDE 4.8.5 | GeForce GT 420
    ThinkPad E320: oS 12.2 x86_64 | i3@2.30GHz | 8GB | KDE 4.9.3 | HD 3000
    eCAFE 800: oS 11.4 i586 | AMD Geode LX 800@500MHz | 512MB | lamp server

  4. #4

    Default Re: Is Gnome running behind KDE?

    Quote Originally Posted by martin_helm View Post
    Two desktops cannot run at the same time
    actually you can ... pta even showed a pic of this in these forums a while back.

    ^ That was in a single X Display. In addition, you can run two different desktops at the same time using two X Displays ... something I'm doing right this second as I type! (gnome, KDE)

    I suspect that nautilus (the
    filemanager) is somehow started even if you start KDE and leads to that
    artifact.
    If the system was booted straight into KDE and this behaviour (gnome desktop flashed on logout) was observed, then yeah, your thinking is probably along the correct lines.

    If, on the other hand, there has been a gnome session run prior to the KDE session, it may simply be a case of buffered memory in the video card

  5. #5

    Default Re: Is Gnome running behind KDE?

    Quote Originally Posted by martin_helm View Post
    Two desktops cannot run at the same time
    Why not? You can run as many desktops as you like at the same time on different displays, either in other ttys, windows (Xephyr, Xnest) or screens. This machine runs Gnome + KDE + Xfce + LXDE + icewm (for example):

    Code:
    $ lsx
    
        :0  tty7    3522  root          Ss+          06:12    /usr/bin/Xorg :0 -br -verbose
            =>      3519  root          Sl+          06:12    /usr/lib/gdm/gdm-simple-slave --display-id /org/gnome/DisplayManager/Display1
            =>      3684  root          Sl+          05:54    gdm-session-wor gdm-session-worker [pam/gdm]
            =>      3706  agnelo        Ss           05:34    /bin/bash /etc/gdm/Xsession gnome-session --session=gnome
    
        :1  tty2    4543  root          Rs+          04:28    /var/lib/X11/X :1 
            =>      4542  agnelo        S+           04:28    xinit /usr/local/config/x11/XremoteSession kde -- /usr/bin/X.x11-video-nvidiaG02 :1
            =>      4584  agnelo        Ss           04:27    ck-launch-session startkde
    
        :2  pts/3   6623  agnelo        Sl+          02:46    Xephyr -ac -mouse ephyr -keybd ephyr
            =>      6565  agnelo        S+           02:46    /bin/bash /usr/local/bat/rsession -m icewm
            =>      6624  agnelo        S+           02:46    ck-launch-session icewm-session
    
        :3  pts/5   7768  agnelo        Sl+          02:06    Xephyr -ac -mouse ephyr -keybd ephyr
            =>      7703  agnelo        S+           02:06    /bin/bash /usr/local/bat/rsession -f -m lxde
            =>      7769  agnelo        S+           02:06    ck-launch-session startlxde
    
        :4  tty3    9737  root          Ss+          00:48    X :4 -query jadzia
            =>      9331  agnelo        Ss           01:11    bash      
    
        :?  tty1    3518  root          Sl+          06:13    gdm       
            =>      9802  root          Sl+          00:48    /usr/lib/gdm/gdm-simple-slave --display-id /org/gnome/DisplayManager/Display2
            =>      9941  root          Sl+          00:42    gdm-session-worker [pam/gdm]
            =>     10263  agnelo        Ss           00:22    ck-launch-session xfce4-session
    The first column shows the display number.
    Don't try "lsx". It's a script I wrote to list X sessions (local or remote). I might post it some day.

    @shane2943,

    What you see when you log out is most likely the Gnome Display Manager (gdm). It looks like gnome-shell and indeed uses the same theme and the same panel (at the top) without the session applets. It briefly flashes becauses it terminates and restarts the X server at log out. kdm does that too. There is nothing to worry about here.

  6. #6
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    Default Re: Is Gnome running behind KDE?

    Am 08.11.2012 02:46, schrieb Tyler K:
    > actually you can ... pta even showed a pic of this in these forums a
    > while back.


    actually I know that you can run several sessions in parallel I did that
    often enough in my live, but that is clearly not what the op refers to
    we should not get side tracked by a somewhat fuzzy wording I used

    so to make it more precise, you cannot run two desktops at the same time
    in the same x session (if you can then this is something I have not seen
    in the last 18 years using linux).

    --
    PC: oS 12.2 x86_64 | i7-2600@3.40GHz | 16GB | KDE 4.8.5 | GeForce GT 420
    ThinkPad E320: oS 12.2 x86_64 | i3@2.30GHz | 8GB | KDE 4.9.3 | HD 3000
    eCAFE 800: oS 11.4 i586 | AMD Geode LX 800@500MHz | 512MB | lamp server

  7. #7
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    Default Re: Is Gnome running behind KDE?

    Am 08.11.2012 02:46, schrieb please try again:
    > @shane2943,
    >
    > What you see when you log out is most likely the Gnome Display
    > Manager (gdm). It looks like gnome-shell and indeed uses the same
    > theme and the same panel (at the top) without the session applets. It
    > briefly flashes becauses it terminates and restarts the X server at
    > log out. kdm does that too. There is nothing to worry about here.
    >


    There was a bug in 12.1 which started a nautilus instance which should
    have an entry in the .desktop file to only run in Gnome and that was
    missing (or something similar), I forgot the details.

    Again let's not get into a side tracked discussion about how many x
    sessions with how many desktops one can run (or by other means).
    I already corrected my wording.

    --
    PC: oS 12.2 x86_64 | i7-2600@3.40GHz | 16GB | KDE 4.8.5 | GeForce GT 420
    ThinkPad E320: oS 12.2 x86_64 | i3@2.30GHz | 8GB | KDE 4.9.3 | HD 3000
    eCAFE 800: oS 11.4 i586 | AMD Geode LX 800@500MHz | 512MB | lamp server

  8. #8
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    Default Re: Is Gnome running behind KDE?

    Am 08.11.2012 02:59, schrieb Martin Helm:
    > so to make it more precise, you cannot run two desktops at the same time
    > in the same x session (if you can then this is something I have not seen
    > in the last 18 years using linux).
    >

    Arrgh, to be even more precise you can with special software, but no
    please let's not go into that here please.
    I very much doubt the OP has setup such things.

    --
    PC: oS 12.2 x86_64 | i7-2600@3.40GHz | 16GB | KDE 4.8.5 | GeForce GT 420
    ThinkPad E320: oS 12.2 x86_64 | i3@2.30GHz | 8GB | KDE 4.9.3 | HD 3000
    eCAFE 800: oS 11.4 i586 | AMD Geode LX 800@500MHz | 512MB | lamp server

  9. #9

    Default Re: Is Gnome running behind KDE?

    Quote Originally Posted by martin_helm View Post
    There was a bug in 12.1 which started a nautilus instance which should
    have an entry in the .desktop file to only run in Gnome and that was
    missing (or something similar), I forgot the details.
    I guess I see what you mean

    • /etc/xdg/autostart/nautilus-autostart.desktop (12.1)
      Code:
      [Desktop Entry]
      X-SuSE-translate=true
      Type=Application
      Name=Files
      Exec=nautilus -n
      AutostartCondition=GSettings org.gnome.desktop.background show-desktop-icons
    • /etc/xdg/autostart/nautilus-autostart.desktop (12.2)
      Code:
      [Desktop Entry]
      X-SuSE-translate=true
      Type=Application
      Name=Files
      Exec=nautilus -n
      OnlyShowIn=GNOME;Unity;
      AutostartCondition=GSettings org.gnome.desktop.background show-desktop-icons


    But I guess what the OP is wondering about is just gdm.

    Quote Originally Posted by martin_helm View Post
    Again let's not get into a side tracked discussion about how many x
    sessions with how many desktops one can run (or by other means).
    I already corrected my wording.
    Keine Sorge!

  10. #10

    Default Re: Is Gnome running behind KDE?

    Quote Originally Posted by martin_helm View Post
    let's not go into that here please.
    I very much doubt the OP has setup such things.
    Yes, I agree. ... it was, just, ...well,.... I didn't like the colour you painted your bikeshed and so was forced to call the pedantic police

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