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Ubuntu Bionic 18.04 flashing white line at top of onitor



The 2019 Stack Overflow Developer Survey Results Are InSmall white line flashing top of screen Ubuntu 14.04USB display adapter with linux/ubuntu drivers?one of dual monitors not showing correct resolution by defaultHow to find out the HDMI version supported14.04 cannot output sounds to hdmi audio deviceUbuntu 16.04 dual monitor resolution problem with dell precision 5510Laptop mini DisplayPort issue - external monitor does not detect on 16.04Graphic errors on external monitor connected by DisplayPort-HDMI-CableConnecting Laptop to External Monitor with DisplayPort returns Power Saving MessageMX150 Not working with Thunderbolt 3 and HDMI on Ubuntu 18.04 (dual external monitors)HiDPI laptop screen with HD external monitor DPI issues



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0















This problem is visible with a window whose edge is dark and is placed at the top of the monitor.



The problem only appears on my external DisplayPort monitor. It doesn't appear on the laptop's own display or an HDMI display.



The DisplayPort monitor runs at 2560x1440 resolution and the HDMI and laptop display run at 1920x1080.










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    0















    This problem is visible with a window whose edge is dark and is placed at the top of the monitor.



    The problem only appears on my external DisplayPort monitor. It doesn't appear on the laptop's own display or an HDMI display.



    The DisplayPort monitor runs at 2560x1440 resolution and the HDMI and laptop display run at 1920x1080.










    share|improve this question







    New contributor




    russellr is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      0












      0








      0








      This problem is visible with a window whose edge is dark and is placed at the top of the monitor.



      The problem only appears on my external DisplayPort monitor. It doesn't appear on the laptop's own display or an HDMI display.



      The DisplayPort monitor runs at 2560x1440 resolution and the HDMI and laptop display run at 1920x1080.










      share|improve this question







      New contributor




      russellr is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      This problem is visible with a window whose edge is dark and is placed at the top of the monitor.



      The problem only appears on my external DisplayPort monitor. It doesn't appear on the laptop's own display or an HDMI display.



      The DisplayPort monitor runs at 2560x1440 resolution and the HDMI and laptop display run at 1920x1080.







      18.04 nvidia themes displayport






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      asked 1 hour ago









      russellrrussellr

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          The solution was to change the theme. I used Gnome Tweaks to change the theme from Ambiance to Radiance.



          Of course, perhaps the problem is still there, but simply not visible because of the light window border.



          This has also been described in 14.04 here: Small white line flashing top of screen Ubuntu 14.04
          but answers have been disabled on that question.






          share|improve this answer








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            Your Answer








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            1 Answer
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            0














            The solution was to change the theme. I used Gnome Tweaks to change the theme from Ambiance to Radiance.



            Of course, perhaps the problem is still there, but simply not visible because of the light window border.



            This has also been described in 14.04 here: Small white line flashing top of screen Ubuntu 14.04
            but answers have been disabled on that question.






            share|improve this answer








            New contributor




            russellr is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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              0














              The solution was to change the theme. I used Gnome Tweaks to change the theme from Ambiance to Radiance.



              Of course, perhaps the problem is still there, but simply not visible because of the light window border.



              This has also been described in 14.04 here: Small white line flashing top of screen Ubuntu 14.04
              but answers have been disabled on that question.






              share|improve this answer








              New contributor




              russellr is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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                0












                0








                0







                The solution was to change the theme. I used Gnome Tweaks to change the theme from Ambiance to Radiance.



                Of course, perhaps the problem is still there, but simply not visible because of the light window border.



                This has also been described in 14.04 here: Small white line flashing top of screen Ubuntu 14.04
                but answers have been disabled on that question.






                share|improve this answer








                New contributor




                russellr is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                Check out our Code of Conduct.










                The solution was to change the theme. I used Gnome Tweaks to change the theme from Ambiance to Radiance.



                Of course, perhaps the problem is still there, but simply not visible because of the light window border.



                This has also been described in 14.04 here: Small white line flashing top of screen Ubuntu 14.04
                but answers have been disabled on that question.







                share|improve this answer








                New contributor




                russellr is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                Check out our Code of Conduct.









                share|improve this answer



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                answered 1 hour ago









                russellrrussellr

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