Ubuntu 18.04 Screen flickering on a 4K laptop

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
0
down vote

favorite












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.























    up vote
    0
    down vote

    favorite












    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.





















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      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









      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



      share








      edited 6 mins ago









      Rui F Ribeiro

      37.7k1475119




      37.7k1475119






      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.









      asked 6 mins ago









      midi

      6




      6




      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.





      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.






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

























          active

          oldest

          votes











          Your Answer







          StackExchange.ready(function()
          var channelOptions =
          tags: "".split(" "),
          id: "106"
          ;
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function()
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled)
          StackExchange.using("snippets", function()
          createEditor();
          );

          else
          createEditor();

          );

          function createEditor()
          StackExchange.prepareEditor(
          heartbeatType: 'answer',
          convertImagesToLinks: false,
          noModals: false,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: null,
          bindNavPrevention: true,
          postfix: "",
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          );



          );






          midi is a new contributor. Be nice, and check out our Code of Conduct.









           

          draft saved


          draft discarded


















          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f478291%2fubuntu-18-04-screen-flickering-on-a-4k-laptop%23new-answer', 'question_page');

          );

          Post as a guest






















          active

          oldest

          votes













          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          midi is a new contributor. Be nice, and check out our Code of Conduct.









           

          draft saved


          draft discarded


















          midi is a new contributor. Be nice, and check out our Code of Conduct.












          midi is a new contributor. Be nice, and check out our Code of Conduct.











          midi is a new contributor. Be nice, and check out our Code of Conduct.













           


          draft saved


          draft discarded














          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f478291%2fubuntu-18-04-screen-flickering-on-a-4k-laptop%23new-answer', 'question_page');

          );

          Post as a guest
































































          -

          Popular posts from this blog

          How to check contact read email or not when send email to Individual?

          Image
          Clash Royale CLAN TAG #URR8PPP up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this question asked Sep 26 at 0:12 ToanLuong 49 9 add a comment  |  up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this question asked Se
          Read more

          Bahrain

          Image
          For other uses, see Bahrain (disambiguation). Sovereign island state in the Persian Gulf Kingdom of Bahrain مملكة البحرين   (Arabic) Mamlakat al-Baḥrayn Flag Coat of arms Anthem:  نشيد البحرين الوطني Bahrainona Our Bahrain Location of   Bahrain    (circled in red) Capital and largest city Manama 26°13′N 50°35′E  /  26.217°N 50.583°E  / 26.217; 50.583 Official languages Arabic Ethnic groups (2010 [1] ) 50.7% Arab (46% Bahrani, 4.7% other Arabs) 45.5% Asian 1% European 1.2% Others Religion Islam Demonym(s) Bahraini Government Unitary constitutional monarchy • King Hamad bin Isa Al Khalifa • Crown Prince Salman bin Hamad bin Isa Al Khalifa • Prime Minister Khalifa bin Salman Al Khalifa Legislature National Assembly • Upper house Consultative Council • Lower house Council of Representatives Independence • Declared Independence [2] 14 August 1971 • from United Kingdom [1] 15 August 1971 • Admitted to the United Nations 21 September 1971 • Kingdom of Bahrain 14 February 2002
          Read more

          Postfix configuration issue with fips on centos 7; mailgun relay

          Image
          Clash Royale CLAN TAG #URR8PPP up vote 0 down vote favorite I am trying to setup postfix to relay all mail generated on the local machine via SMTP to a mailgun relay. I have used the mailgun relay before with success on an ubuntu server, but I am migrating to a Centos 7 server which I will be running in FIPS mode. There error log is below, slightly sanitized. I have a small enough network that I choose to have each machine reach out to mailgun individually (this the loopback-only, 127.0.0.0/8 restrictions) and no firewall open port allowing smtp in to the machine. I assume the FIPS mode (and with it disabling of MD5) is causing problems, but I don't know how to overcome it or if it is even possible for tls_fprint to use some supported hash such as sha256 or sha512. However, the relay=none is slightly concerning since I have relayhost set, but perhaps that is because the smtp process is failing? Any help would be appreciated! postconf -n: alias_database = hash:/etc/alia
          Read more