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Thread: Display link problem with xorg

  1. #1
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    Jul 2007
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    Display link problem with xorg

    New install of ubuntu mate 20.04
    installed displaylink with
    displaylink-driver-5.4.0-55.153.run
    install goes fine
    Monitor is connected to docking station with displayport cable.

    PROBLEM
    key presses and mouse clicks take about one second to register. So the system is unusable.
    Mouse movement is fine

    PROBLEM FIX
    Displaylink have - finally - acknowledged this problem and produced a workaround with a patch for the xorg server which is causing the problem. Details here:
    https://www.displaylink.org/forum/sh...ad.php?t=67148
    download here:
    https://www.displaylink.com/downloads/file?d=310

    NEW PROBLEM
    The trouble is that the patch is written over on startup. This happens often with updates, but also happens when just starting up quite often. So I have to reinstall the patch and reboot. Again and again!
    (I have posted on the displaylink forum and been totally ignored.)

    ATTEMPTED SOLUTION
    I installed synaptic and used it to lock the version on:
    xorg
    xserver-xorg
    xserver-xorg-core

    Still have the same problem

  2. #2
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    Re: Display link problem with xorg

    Have you attempted to set the driver file to "immutable"?
    https://www.tecmint.com/make-file-di...able-in-linux/

    Just be certain to manually keep track of driver updates.

  3. #3
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    Re: Display link problem with xorg

    Thanks. Yes, that is what I meant by lock.
    Still does it.

  4. #4
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    Re: Display link problem with xorg

    I went back and found one I had not made immutable. I think this fixed it. The complete list is:
    xorg
    xserver-xorg
    xserver-xorg-core
    xserver-xorg-input-all
    xserver-xorg-video-all

    I just noticed that these four
    xorg
    xserver-xorg
    xserver-xorg-input-all
    xserver-xorg-video-all

    are installed version 1:7.7+19ubuntu14, which is the version the patch installs, so presumably these are the key packages for anyone with this problem.

    Marking as solved, again!
    Last edited by triplemaya; May 24th, 2021 at 08:34 PM.

  5. #5
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    Re: Display link problem with xorg

    Quote Originally Posted by triplemaya View Post
    Thanks. Yes, that is what I meant by lock.
    Still does it.
    "lock" in the package world usually means you did something with apt-mark hold to prevent package updates. At least that was my assumption. Very few people would equate "lock" with a chattr command. Heck, perhaps 10% of Unix/Linux users have ever heard of the chattr command at all.

    Use apt-mark showhold to see which packages are held.

    Regardless, happy you found some solution, but for most packages that you want to hold back, the apt-mark hold {name of package} would be a better answer.

  6. #6
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    Re: Display link problem with xorg

    Hi. Thanks.
    This is all new to me!
    I thought perhaps apt-mark hold does the same as make immutable in synaptic. But I ran apt-mark showhold and nothing shows. No packages found. So these are different kinds of things?
    I am also curious as to what chattr has to do with this?

  7. #7
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    Re: Display link problem with xorg

    I haven't used synaptic (or any GUI package manager) in about a decade. Can't help. What does the manpage for each command say?
    I don't see any "immutable" in synaptic. There is a "lock". Look for the exact words to be used. "immutable" means something very specific in Unix (English), so if translation is happening, it might not be the best word choice.

    I am also curious as to what chattr has to do with this?
    chattr is the only Unix/Linux command that I know which uses the exact term "immutable". chattr +i {file}
    Last edited by TheFu; May 25th, 2021 at 03:43 PM.

  8. #8
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    Re: Display link problem with xorg

    Lock version is the language used in synaptic. Not sure where I got immutable from.

    apt-mark hold
    hold is used to mark a package as held back, which will prevent the package from being
    automatically installed, upgraded or removed.
    showhold
    showhold is used to print a list of packages on hold in the same way as for the other
    show commands.

    But showhold does not return any results. So synaptic lock version is something different.

    In synaptic
    To Lock a Package to the Current Version (Debian only)
    To lock a package to the current version follow these steps:
    Select the package that you want to lock in the package list.
    Choose Package ▸ Lock Version.
    The Synaptic Package Manager will reload the package information. You should now see, that the menu item Package ▸ Lock Version is checked. Furthermore all actions in the menu Package are disabled now.
    To unlock the package uncheck Package ▸ Lock Version.

  9. #9
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    Re: Display link problem with xorg

    Just had it fail again so this is NOT solved!

  10. #10
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    Re: Display link problem with xorg

    Trying apt-mark hold

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