Screen deformations and sync issues

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Some monitors and TVs produce some kinds of image deformations. Next, we will see the most common scenarios and how to fix them:


UI menu top screen deformation

Some TV models are a bit special with the picture modes they can show, you can try to change the so-called Timings on /boot/config.txt with the following line;

    hdmi_timings=320 1 12 32 44 240 1 6 10 6 0 0 0 60 0 6400000 1

You can edit the file extracting the SD from the Pi and on Windows PC or any other os open the file and only change the first line, save and extract with security the SD, if the changes solve the issue thi is saved when you power down the Pi or Reboot with the menu options.