Difference between revisions of "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:
 
Some monitors and TVs produce some kinds of image deformations. Next, we will see the most common scenarios and how to fix them:
  
=== In-Game top screen deformation ===
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[[File:Def.png|320px]]
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=== UI menu top screen deformation ===
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Some TV models are a bit special with the picture modes they can show, you can try to change on /boot/config.txt with the following line;
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    hdmi_timings=320 1 12 32 44 240 1 6 10 6 0 0 0 60 0 6400000 1
  
[[File:Def.png|320px]]
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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.
  
This deformation can be produced because some TV models do not accept intermediate frequencies between 50 and 60Hz well, it can be solved by applying a rounding to these frequencies available in the advanced menu of the system.
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=== In game deformation and desyncronizations ===
  
=== UI menu top screen deformation ===
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If you problem is inside the game you have two ways to solve, enter on the "advanced menu" and try to play with the custom Vsync value.
  
Some TV models are a bit special with the picture modes they can show, you can try to change the so-called Timings in a couple of places, you have to replace it in /home/pi/RGB-Pi/ui-timings.cfg and also in /boot/config.txt with the following line;
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You have too the rounding option to fix the refresh rates on 50Hz or 60Hz for a TVs with a low tolerance of rare refresh rates.
    320 1 12 32 44 240 1 6 10 6 0 0 0 60 0 6400000 1
 

Latest revision as of 12:51, 26 January 2021

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

Def.png

UI menu top screen deformation

Some TV models are a bit special with the picture modes they can show, you can try to change 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.

In game deformation and desyncronizations

If you problem is inside the game you have two ways to solve, enter on the "advanced menu" and try to play with the custom Vsync value.

You have too the rounding option to fix the refresh rates on 50Hz or 60Hz for a TVs with a low tolerance of rare refresh rates.