Ubuntu 18.04 Screen flickering on a 4K laptop

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I recently bought Lenovo Ideapad 720s (4K) and Dual Booted Ubuntu 18.04. However the screen is Flickering. I faced this even while installing but thought it would not happen once Ubuntu was set-up. I have tried the approach mentioned in https://askubuntu.com/questions/1058126/asus-zenbook-ux391ua-screen-flickers/1058132#1058132 but still no success. I am attaching a video for the same :
https://youtu.be/Fz7JkVIMPlk



Specs:
8GB of RAM
Core i7-8550U
Intel UHD Graphics 620 (Kabylake GT2)
GNOME 3.28.2



The only workaround that I have found is to unplug power and then plug back in.(Works 98%). This issue resurfaces as soon as I even lock sceen (and the screen turns off).






dual-boot graphics






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    I recently bought Lenovo Ideapad 720s (4K) and Dual Booted Ubuntu 18.04. However the screen is Flickering. I faced this even while installing but thought it would not happen once Ubuntu was set-up. I have tried the approach mentioned in https://askubuntu.com/questions/1058126/asus-zenbook-ux391ua-screen-flickers/1058132#1058132 but still no success. I am attaching a video for the same :
    https://youtu.be/Fz7JkVIMPlk



    Specs:
    8GB of RAM
    Core i7-8550U
    Intel UHD Graphics 620 (Kabylake GT2)
    GNOME 3.28.2



    The only workaround that I have found is to unplug power and then plug back in.(Works 98%). This issue resurfaces as soon as I even lock sceen (and the screen turns off).






    dual-boot graphics






    share









    New contributor




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





















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      up vote
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      down vote

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      I recently bought Lenovo Ideapad 720s (4K) and Dual Booted Ubuntu 18.04. However the screen is Flickering. I faced this even while installing but thought it would not happen once Ubuntu was set-up. I have tried the approach mentioned in https://askubuntu.com/questions/1058126/asus-zenbook-ux391ua-screen-flickers/1058132#1058132 but still no success. I am attaching a video for the same :
      https://youtu.be/Fz7JkVIMPlk



      Specs:
      8GB of RAM
      Core i7-8550U
      Intel UHD Graphics 620 (Kabylake GT2)
      GNOME 3.28.2



      The only workaround that I have found is to unplug power and then plug back in.(Works 98%). This issue resurfaces as soon as I even lock sceen (and the screen turns off).






      dual-boot graphics






      share









      New contributor




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











      I recently bought Lenovo Ideapad 720s (4K) and Dual Booted Ubuntu 18.04. However the screen is Flickering. I faced this even while installing but thought it would not happen once Ubuntu was set-up. I have tried the approach mentioned in https://askubuntu.com/questions/1058126/asus-zenbook-ux391ua-screen-flickers/1058132#1058132 but still no success. I am attaching a video for the same :
      https://youtu.be/Fz7JkVIMPlk



      Specs:
      8GB of RAM
      Core i7-8550U
      Intel UHD Graphics 620 (Kabylake GT2)
      GNOME 3.28.2



      The only workaround that I have found is to unplug power and then plug back in.(Works 98%). This issue resurfaces as soon as I even lock sceen (and the screen turns off).






      dual-boot graphics




      dual-boot graphics





      share









      New contributor




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










      share









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      midi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      edited 6 mins ago









      Rui F Ribeiro

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      midi

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