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Thread: 18.04: Flashing Line At Bottom Of Screen

  1. #1
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    Aug 2007
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    18.04: Flashing Line At Bottom Of Screen

    Since yesterday I have had a flashing line at the bottom of the screen in all apps. The flashing is very distracting. I saw a post online saying to switch to Ubuntu on Wayland and that resolved it, but now it is back again. What could be the issue here? Should I log into Wayland instead each day. Otherwise this laptop has been fine for the past 1.5 years.

  2. #2
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    Re: 18.04: Flashing Line At Bottom Of Screen

    I can't picture what you're describing but certainly it has something to do with graphics and drivers.

    If Wayland works for you there's no reason not to use it. It will likely became the default soon.

  3. #3
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    Aug 2007
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    Re: 18.04: Flashing Line At Bottom Of Screen

    Okay I can switch to Wayland.

    I KNOW and if I take a pic of it with my phone or do a screengrab, it is really hard to even see.

  4. #4
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    Re: 18.04: Flashing Line At Bottom Of Screen

    Screenshot from 2020-03-29 13-25-15.jpg

    Okay I got a pic. I hope it's visible to others.

  5. #5
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    Kubuntu

    Re: 18.04: Flashing Line At Bottom Of Screen

    Is that image using Wayland? Are you saying that the behavior does not occur with Wayland but does otherwise?

    I, for one, do not hope Wayland will be the default soon. So long as the Wayland developers continue their unilateral attitude that "users should not be doing this" and "users should not need to do that", I won't support Wayland. As soon as the Wayland developers accept that they are not the arbiters of who should be doing what with their systems, I might get behind Wayland.

    A new, shiny car that does not let me turn right because the designers believe I shouldn't need to turn right is of no use to me -- even if I am experienced enough to know I should not turn right.
    Last edited by QIII; March 29th, 2020 at 06:58 PM.
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  6. #6
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    Re: 18.04: Flashing Line At Bottom Of Screen

    OH that image is from regular Ubuntu 18.04...sorry!

    So far doesn't occur in Wayland

  7. #7
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    Re: 18.04: Flashing Line At Bottom Of Screen

    Just to update it seems switching to Wayland solved the issue.

  8. #8
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    Re: 18.04: Flashing Line At Bottom Of Screen

    Unfortunately even in Wayland the blinking line is still coming back from time to time.

  9. #9
    Join Date
    Apr 2020
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    1

    Re: 18.04: Flashing Line At Bottom Of Screen

    If your laptop has an available connection, try using an external monitor and observe if the same problem appears. You can try changing display settings like reducing the resolution and refresh rates, however I don't think any of that will fix your issue: It really looks and sounds more like a hardware problem; likely an intermittent connection internal to the display module itself. You could try opening the laptop, and checking the display module system board connector; possibly cleaning the contacts with at least 70% rubbing alcohol. I suspect none of that will work, and you may just have to just replace the display. You can get replacements from a number of online suppliers.

  10. #10
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    Aug 2007
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    Re: 18.04: Flashing Line At Bottom Of Screen

    Wow, that is really disappointing at this laptop is barely two years old. I paid good money for this System76 laptop, so that is frustrating.

    If I reboot, it DOES go away. Will it get worse at all?

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