KODI problems with composite monitor of 7 inches

Hi!
I have a RPI 3 with HifiBerry connected to my old hi-fi
Use KODI, updated to vers.17 last week.I’ve purchased a TFT / LCD Monitor 7 inches (with av input and no HDMI) to be connected to raspberry.Problems!!! Everything is slightly blurred, orizz.che strips pass the time and bigger picture of the monitor! :frowning: (See image, blue menu on the left)
I did several tests in CONFIG.TXT files but nothing! I include image
Sorry for the bad English, I write from Italy …
Thanks for the attention

Definately check your cables and make sure they are properly shielded. Also noisy power supplies may have influences on the quality of analog signals put out by the pi.

The picture will always be blurry as the analog output will be scaled up by your display.

Hi Mcobit!
Thank you for the reply.
I’ll list all the evidence:

  1. The cable I bought it from the English website of Raspberry.
  2. I tried the rasp on two tv no hdmi.OK
  3. I connected the monitor to dvd.OK
  4. Finally I installed Raspbian.Ok.
  5. In CONFIG.TXT files I made many trials (overscan, framebuffer) Nothing!
    The problem then, it is only with Kodi …!
    The problem, it may upgrade to kodi 17 ??

That is strange. It only happens with osmc? Not with raspbian?

In this case check your powersupply.
Also try to set PAL/NTSC modes in the config.txt file.

With Raspbian looks best! The terminal, however, is unreadable
Power supply is ok. (Tested with dvd player)
Already done all the tests config.txt (oversca, framebuffer, set, aspect etc)
Now I installed OSMC no update of KODI 17 (the OSMC_TGT_rbp2_20170210 file)

Try to comment out the framebuffer res lines in config txt if you have set something there.
Also remove any overscan settings.
Can you post your current config.txt?

When I apply the CONFIG ALTERNATIVE, you see the good results only to the splash screen (the blue one with the logo in the center)
Next, return the old problems! In Kodi/setting/system/display, it is only enabled “reset above settings to defaults”
Here, the files
– CURRENT config.txt–
gpu_mem_1024=256
hdmi_ignore_cec_init=1
#disable_overscan=1
start_x=1
disable_splash=1
gpu_mem_256=112
gpu_mem_512=144
dtoverlay=hifiberry-dac-overlay
dtparam=audio=off
sdtv_mode=2

-CONFIG ALTERANTIVE- (After, I restored the current CONFIG)
gpu_mem_1024=256
hdmi_ignore_cec_init=1
#disable_overscan=1
overscan_left=16
overscan_right=16
overscan_top=16
overscan_bottom=16
start_x=1
disable_splash=1
gpu_mem_256=112
gpu_mem_512=144
dtoverlay=hifiberry-dac-overlay
dtparam=audio=off
sdtv_mode=2
sdtv_aspect=3
hdmi_mode=9
framebuffer_width=800
framebuffer_height=480

(sorry,I do not know why … But DISABLE OVER SCAN = 1 is actually #disable oversacn = 1