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Thread: Input Lag Problem But It's Quite Unusual

  1. #1
    Join Date
    Nov 2021
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    2

    Question Input Lag Problem But It's Quite Unusual

    Roughly once a minute, clicks from the mouse, highlighting over things with the cursor, and keyboard strokes will suddenly stop showing up on screen, but then anything I did during that period will all happen at once after about 10 seconds.

    The part that is very weird about this is that it only applies to the keyboard, mouse clicks and cursor hovers, but not he cursor movement. If I move my mouse while this is happening the cursor still moves around perfectly normal but anything that the cursor moves over while this is happening, such as menu's or buttons, will not react.

    The problem only happens on this installation of Ubuntu using KDE Plasma. I also use Windows on this computer and its fine, and I've tested with a live boot flashdrive of Ubuntu as well.

    Here's a couple videos for a clear visual of this.
    https://imgur.com/a/u8XfCxM


    Hardware:
    • Ryzen 2600
    • Radeon RX 590
    • Razer Black Widow
    • Logitech G602
    • OS is installed on a new SSD.
    • 32GB RAM, 16GB Swap


    Software:
    • Ubuntu 20.04 with KDE Plasma installed/being used (Not kubuntu)
    • KDE Plasma Version: 5.18.5
    • KDE Framework Version: 5.68.0
    • Qt Version: 5.12.8
    • Kernel Version: 5.11.0-40-lowlatency



    Things I have already tried:
    • Restarted Computer
    • Updated System/Applications
    • Change Compositor to Smooth
    • Tried all rendering backend options
    • Tried all vsync options
    • Increasing Swap size
    Last edited by grandnebsmada; November 25th, 2021 at 07:01 AM. Reason: I initially said the videos had audio, but I didn't know Imgur doesn't save the audio.

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