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Thread: Mouse wheel no longer switches virtual desktop

  1. #1

    Question Mouse wheel no longer switches virtual desktop

    Hi!Have a TW 64 bit with KDE, updated to the latest. Up to one of the latest updates the "mouse wheel" (actually it's a trackball, but ...) switched between the 4 virtual desktops, as long as the mouse pointer was on the desktop (not an application window), Now not any more, nothing happenz if the mouse wheel is moved. Changing trackball vs. a Dell mouse doesn't change anything.Had a look at the "System Settings" -> "Desktop Behaviour" -> "Virtual Desktops" -> "Switching", but nothing different to another TW where the mouse wheel switch still works. Btw. recently the look of the "System Settings" menu changed dramatically, the icons are no longer distributed over the Window, but all located to the left.Any idea why the mouse wheel has stopped working and how to make it work again?
    Kind regards

    raspu

  2. #2
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    Default Re: Mouse wheel no longer switches virtual desktop

    That's the wrong setting.

    Right click on desktop. Select "Configure Desktop".

    Look for "Mouse Actions" in the left margin, and click that.

    Look for scroll wheel. Set it to "Switch Desktops".

    That works here. I normally have it set to "Switch Activities". But I changed to "Switch Desktops" for testing.
    openSUSE Leap 15.3; KDE Plasma 5.18.6;

  3. #3

    Default Re: Mouse wheel no longer switches virtual desktop

    Thanks!Forgot: Tried that too! With both, the mouse and the trackball. Can even detect the "Vertical-Scroll" as input, but no matter which operation I choose, nothing happens, after pressing "Apply". Strange. So the wheel is detected, but nothing happens subsequently.
    Kind regards

    raspu

  4. #4
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    Default Re: Mouse wheel no longer switches virtual desktop

    Quote Originally Posted by suse_rasputin View Post
    Thanks!Forgot: Tried that too! With both, the mouse and the trackball. Can even detect the "Vertical-Scroll" as input, but no matter which operation I choose, nothing happens, after pressing "Apply". Strange. So the wheel is detected, but nothing happens subsequently.
    I don't normally make such configurations, but my experience with openSUSE 42.3 (KDE Plasma 5) matches yours. After little investigation I found that the changes are made to the '[ActionsPlugins][0]' section of ~/.config/plasma-org.kde.plasma.desktop-appletsrc eg

    Code:
    [ActionPlugins][0]
    MidButton;NoModifier=org.kde.paste
    RightButton;NoModifier=org.kde.contextmenu
    wheel:Vertical;NoModifier=org.kde.switchdesktop
    and don't appear to take effect.

    I then found the following discussion_about_switching_workspaces_with_mouse and added the required entry
    Code:
    wheel:Vertical;NoModifier=org.kde.switchdesktop
    to '[ActionsPlugins][1]' section like this and then the desired action it did take effect immediately.

    Hopefully this helps you too.

  5. #5
    Join Date
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    Default Re: Mouse wheel no longer switches virtual desktop

    Hmmm...a bit more experimenting and I found that the initial changes did take effect after restarting the desktop...anyway check what is configured in ~/.config/plasma-org.kde.plasma.desktop-appletsrc perhaps....

    Code:
    [ActionPlugins][0]
    MidButton;NoModifier=org.kde.paste
    RightButton;NoModifier=org.kde.contextmenu
    wheel:Vertical;NoModifier=org.kde.switchdesktop

  6. #6

    Default Re: Mouse wheel no longer switches virtual desktop

    Hi again!

    Had a long dd-job running, but now back on topic:

    Code:
    [ActionPlugins][1]
    RightButton;NoModifier=org.kde.contextmenu
    wheel:Vertical;NoModifier=org.kde.switchdesktop
    ...has been added. Reboot. No change. But: If I hover the mouse pointer over the symbol of the 4 virtual desktops in the task bar, the mouse wheel switches the virtual desktop!

    Making progress, albeit slowly ;-)


    PS: have already this in the same file:

    Code:
    [ActionPlugins][0]
    MidButton;NoModifier=org.kde.paste
    RightButton;NoModifier=org.kde.contextmenu
    wheel:Vertical;NoModifier=org.kde.switchdesktop
    Kind regards

    raspu

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