I have tried to watch a movie on TV by connecting my lap top using HDMI cable. But I couldn't connect it. I have tried several codes. Now I have faced another problem as Red color dot on right top corner which I can not get rid of.

Red dot screen shot

  • Have you tried setting up a second monitor through settings > Screen Display ?
    – user227495
    Dec 13 '18 at 6:00
  • there is no any screen display setting Dec 14 '18 at 15:29
  • Which version of Ubuntu ?
    – user227495
    Dec 16 '18 at 5:15
  • 18.04 LTS .. have any idea to fix it ? Dec 22 '18 at 14:36
  • 18.04 has the settings path I mentioned. I use it too.
    – user227495
    Dec 23 '18 at 5:34

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