No 480i possible at emulationstation/Kodi PI4 400

lightpixel

Group CEA has 5 modes:
mode 1: 640x480 @ 60Hz 4:3, clock:25MHz progressive
mode 2: 720x480 @ 60Hz 4:3, clock:27MHz progressive
mode 3: 720x480 @ 60Hz 16:9, clock:27MHz progressive
mode 4: 1280x720 @ 60Hz 16:9, clock:74MHz progressive
mode 16: 1920x1080 @ 60Hz 16:9, clock:148MHz progressive

...seems raspi-config filters out all interlaced modes.
This is so sad, because many many people love to play there old games on there old CRT TV set´s...

mitu

@lightpixel said in No 480i possible at emulationstation/Kodi PI4 400:

mode 1: 640x480 @ 60Hz 4:3, clock:25MHz progressive
mode 2: 720x480 @ 60Hz 4:3, clock:27MHz progressive
mode 3: 720x480 @ 60Hz 16:9, clock:27MHz progressive
mode 4: 1280x720 @ 60Hz 16:9, clock:74MHz progressive
mode 16: 1920x1080 @ 60Hz 16:9, clock:148MHz progressive

Seems the interlaced mode is not reported by the converter.
Add to the configuration file:

hdmi_ignore_edid=0xa5000080

and see if it makes a difference.

...seems raspi-config filters out all interlaced modes.
This is so sad, because many many people love to play there old games on there old CRT TV set´s...

raspi-config not showing that particular video mode is not an obstacle in making it work. Worse case - if config.txt setting don't work - you can set the video mode via tvservice.

lightpixel

@mitu
Yes it´s wired...
If I set manually tvservice -e "CEA 6" the adapter works...
I added hdmi_ignore_edid=0xa5000080 in the config.txt
now the resolution is correct set to 640x480, but progressive.
... I also added tvservice -e "CEA 6" in the config.txt, but it it´s not recognized....
I´ve done a test with a OSMC (KODI folk for raspberry) and there´s 480i working like charm... so it must be Pi4 relatetd issue in retropie

mitu

@lightpixel said in No 480i possible at emulationstation/Kodi PI4 400:

... I also added tvservice -e "CEA 6" in the config.txt, but it it´s not recognized....

That's a command, not a valid config.txt configuration option.
Can you post your current config.txt ? Add code blocks (```) before and after the contents.

lightpixel

@mitu

# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details

# uncomment if you get no picture on HDMI for a default "safe" mode
hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
disable_overscan=1

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16

# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=768	
#framebuffer_height=576

# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group:0=1
#hdmi_mode:0=6

tvservice -e "CEA 6"

hdmi_ignore_edid=0xa5000080

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2
#sdtv_aspect=3
#enable_tvout=1

#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800

# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on

# Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18

# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)
dtparam=audio=on

[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2

[all]
#dtoverlay=vc4-fkms-v3d
#overscan_scale=1

Oh success: I´ve put the

tvservice -e "CEA 6"

in the autostart.sh and now it works...

mitu

Your config.txt is wrong - you've commented out the hdmi_mode/hdmi_group options and set hdmi_safe , which will set a fixed resolution. Plus, the tvservice command doesn't go in config.txt.

I suggest you start with a stock config.txt and add at the end:

hdmi_force_hotplug=1
hdmi_group=1
hdmi_mode=6
hdmi_ignore_edid=0xa5000080

dankcushions

@lightpixel
and also
config_hdmi_boost=4
doesn't apply to pi4: https://www.raspberrypi.com/documentation/computers/configuration.html#troubleshooting-your-hdmi

lightpixel

@dankcushions
thanks to all but I give it up...
ES starts in 480i now correctly, but Kodi and all other emus switch to 480p when starting.
I´ve here a Pi2scart on my desk which I ´ve ordered some month ago...
Is there any chance to get I work at 480i?
I should only setup the corrcet hdmi timings for 480i... but how?

mitu

Is there any chance to get I work at 480i?
I should only setup the corrcet hdmi timings for 480i... but how?

Don't have a Pi2Scart set-up, so can't comment on that.

sirhenrythe5th

i dont know if this is still up-to-date, but after my dissapointing try to connect my Pi4 to a CRT i also wanted to buy a Pi2Scart.
At this point it was not possible to use it without issues, there were problems with the 3,5" headphone-jack, which is used by the Pi2Scart for audio-output.

lightpixel

@sirhenrythe5th
for me sound over the 3,5mm jack is working perfect. And at 240p everthing is working like a charm....

sirhenrythe5th

@lightpixel thanks a lot for info, then this issue seems to be resolved.
Do i understand it right that with this Pi2ScartDevice you also bypass this downclocking of the CPU that the Pi4/OS does when the AV-Out of the Pi4 is used?

lightpixel

@sirhenrythe5th can´t tell exactly, but I did nt notice any performance differences between Pi2scart and composite.