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Thread: External Monitor prompt flashing all the time

  1. #11
    tea for one is offline Iced Almond Soy Ubuntu, No Foam
    Join Date
    May 2008
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    1,138
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    Ubuntu 20.04 Focal Fossa

    Re: External Monitor prompt flashing all the time

    Quote Originally Posted by meetdilip View Post
    Let me explain.

    1. I start Ubuntu 20.04 laptop with an external monitor plugged in through HDMI
    Have you tried to start your Ubuntu 20.04 laptop without the external monitor attached?

    Then plug it in after logging in to Ubuntu.

  2. #12
    Join Date
    Jul 2005
    Location
    I think I'm here! Maybe?
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    Hidden!
    Distro
    Xubuntu 20.04 Focal Fossa

    Re: External Monitor prompt flashing all the time

    You still have not shown us the hardware you're using; neofetch output is not good enough for the detail we need so as a start please show us the output of
    Code:
    inxi -Fzx

  3. #13
    Join Date
    Oct 2011
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    216
    Distro
    Ubuntu 11.10 Oneiric Ocelot

    Re: External Monitor prompt flashing all the time

    I tried starting Ubuntu first and then plugging in the monitor through HDMI. But the issue persists. I somehow manage to capture a screenshot this time

    Screenshot from 2020-11-27 01-10-48.jpg

  4. #14
    Join Date
    May 2013
    Location
    Galiza
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    3,168
    Distro
    Ubuntu

    Re: External Monitor prompt flashing all the time

    OK, that I've seen before and it only appears when we use the "screens configuration" key (typically one of the functions keys or a key combo - FN+Fsomething).

  5. #15
    Join Date
    Oct 2011
    Beans
    216
    Distro
    Ubuntu 11.10 Oneiric Ocelot

    Re: External Monitor prompt flashing all the time

    Quote Originally Posted by ajgreeny View Post
    You still have not shown us the hardware you're using; neofetch output is not good enough for the detail we need so as a start please show us the output of
    Code:
    inxi -Fzx
    I tried the above command. It says
    inxi - command not found

  6. #16
    Join Date
    Oct 2011
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    216
    Distro
    Ubuntu 11.10 Oneiric Ocelot

    Re: External Monitor prompt flashing all the time

    Quote Originally Posted by CelticWarrior View Post
    OK, that I've seen before and it only appears when we use the "screens configuration" key (typically one of the functions keys or a key combo - FN+Fsomething).
    I see. I haven't touched anything after login. Not even the mouse. But it still prompts. Thanks.

  7. #17
    Join Date
    May 2013
    Location
    Galiza
    Beans
    3,168
    Distro
    Ubuntu

    Re: External Monitor prompt flashing all the time

    Perhaps you should check your keyboard then...
    Nevertheless, what happens after you select your desired option? If it appears again then most likely you have a stuck key.

  8. #18
    Join Date
    Oct 2011
    Beans
    216
    Distro
    Ubuntu 11.10 Oneiric Ocelot

    Re: External Monitor prompt flashing all the time

    Ok. I will check the keys. But whatever I select through the prompt and settings does not save. The whole saga of blinking continues, no matter which one I choose. Interestingly, the prompt chooses a random answer every time it flashes. ie, first it will choose joint, the external, the mirror and so on. No pattern, mostly random and its own choice.

    It is almost 2:00. Too tired. Please don't mind, I have to leave. Kindly do leave you inputs. Thanks.

  9. #19
    Join Date
    Oct 2011
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    216
    Distro
    Ubuntu 11.10 Oneiric Ocelot

    Re: External Monitor prompt flashing all the time

    I checked twice. Keys looks fine. Because I have Kubuntu desktop installed and I get this prompt there as well. But it goes away when I " Stop " a process called " Kscreen2 ". If possible, can you tell me which process can do the same with Gnome / default DE ? Thanks

  10. #20
    Join Date
    Oct 2011
    Beans
    216
    Distro
    Ubuntu 11.10 Oneiric Ocelot

    Re: External Monitor prompt flashing all the time

    Regret bumping, which process to kill to stop the prompt from flashing ? Thanks.

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