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  1. #1
    Join Date
    Jun 2018
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    Denmark
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    Windows NT 10.0 Chrome 67.0.3396.99

    Question F28 latest kernel: XFCE almost frozen / strange focus behaviour

    I'm using the XFCE Fedora 28 spin from https://spins.fedoraproject.org/xfce/download/, installed in a VM in VirtualBox 5.2.12 r122591.

    Before updates, everything works as expected - also when installing all current updates as of today except new kernel.

    However when kernel update 4.17.2-200.fc28.x86_64 is installed, the mouse click focus stops working correctly. It seems as when a window is clicked and it gets mouse clicks, other windows then cannot receive mouse clicks.

    Example: If the first thing I do after login is to click the panel to start a terminal, the terminal starts, but I cannot move/resize the window with the mouse. Only the panel now reacts to mouse clicks.

    On the other hand, if after login I click elsewhere, such as right-clicking an icon in the tray, the panel now won't accept mouse clicks, but only the tray does.

    Any inputs on this? Rebooting with the old kernel (4.16.3-301) fixes the problem.

    Thanks, Søren
    Last edited by huntiedk; 28th June 2018 at 09:52 AM.

  2. #2
    Join Date
    Jun 2018
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    Denmark
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    Windows NT 10.0 Chrome 67.0.3396.99

    Re: XFCE almost frozen / strange focus behaviour

    Bonus info: I've got one installation that runs a previously updated kernel, 4.16.16-300.fc28.x86_64 - which also works fine.

  3. #3
    Join Date
    Jun 2007
    Posts
    46
    Linux Chrome 66.0.3359.117

    Re: XFCE almost frozen / strange focus behaviour

    I don't have an answer for you, but I am seeing the same exact issue.

    I also tried it with the lxde desktop and it is the same.

    Rolling back to a 4.16 kernel solves the issue. I have to believe this is a related to the virtualbox guest drivers that are now in the kernel

  4. #4
    Join Date
    Jun 2007
    Posts
    46
    Linux Chrome 66.0.3359.117

    Re: XFCE almost frozen / strange focus behaviour

    I see this discussion on the Virtualbox forums: https://www.virtualbox.org/ticket/17...=0&cnum_hist=4

  5. #5
    Join Date
    May 2014
    Location
    Paris, France
    Posts
    2
    Windows NT 10.0 Firefox 61.0

    Re: F28 latest kernel: XFCE almost frozen / strange focus behaviour

    Quote Originally Posted by huntiedk
    I'm using the XFCE Fedora 28 spin from https://spins.fedoraproject.org/xfce/download/, installed in a VM in VirtualBox 5.2.12 r122591.

    Before updates, everything works as expected - also when installing all current updates as of today except new kernel.

    However when kernel update 4.17.2-200.fc28.x86_64 is installed, the mouse click focus stops working correctly. It seems as when a window is clicked and it gets mouse clicks, other windows then cannot receive mouse clicks.

    Example: If the first thing I do after login is to click the panel to start a terminal, the terminal starts, but I cannot move/resize the window with the mouse. Only the panel now reacts to mouse clicks.

    On the other hand, if after login I click elsewhere, such as right-clicking an icon in the tray, the panel now won't accept mouse clicks, but only the tray does.

    Any inputs on this? Rebooting with the old kernel (4.16.3-301) fixes the problem.

    Thanks, Søren
    +1
    Same issue. With VirtualBox also. Revrting back to the previous kernel solves the issue. Trying xfwm4 --replace temporarily (e few seconds) solves the issue before freezing focus again.

  6. #6
    Join Date
    Jun 2018
    Location
    Denmark
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    Windows NT 10.0 Chrome 67.0.3396.99

    Re: XFCE almost frozen / strange focus behaviour

    Quote Originally Posted by mlblandf
    I see this discussion on the Virtualbox forums: https://www.virtualbox.org/ticket/17...=0&cnum_hist=4
    That looks as the exact problem. Thanks for linking. The issue seems to be with Virtualbox drivers so I'll mark this thread as solved. Kernel downgrade to 4.16 seems to be the answer for now.

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