hdmi to component CRT Help..runcommand

MrCoffee

@mitu I will post an update on how i got it working, I'm just not near my pi right now to read off the commands,, should I just edit my post with the new info,, or just make a comment here?..

mitu

@MrCoffee Don't worry, when you have the time to test things just add a new reply to the topic with your findings.

MrCoffee

@MrCoffee

@MrCoffee said in hdmi to component CRT Help..runcommand:

Hi first post,, I've been looking up and down the forums and found some info, that kinda helped but right now I'm a bit stuck.

So im using a HDMI to Component Converter/Transcoder..into my NTSC crt tv. It works off the bat from boot, and into es games look good,, but I want to use the runcommand to get a wider resolution ,, like 1280x240 but i can not get it to switch.. ..
Im using a Rasp-pi 3, retropie 4.4. last updated about 3 weeks ago.

from boot this is what i added to the config ..
...
overscan_scale=1
hdmi_cvt=360 240 60 1 1 0 0
#hdmi_cvt=336 249 60 1 0 0 0
#hdmi_cvt=1280 240 60 1 1 0 0
#hdmi_cvt=2048 240 60 1 1 0 0

hdmi_group=2
hdmi_mode=87
hdmi_force_hotplug=1
config_hdmi_boost=7
hdmi_ignore_edid=0xa5000080
hdmi_pixel_encoding=1
...
the #hdmi_cvt=**** work too.

so this is my runcommand-onstart.sh
..
vcgencmd hdmi_cvt=1280 240 60 1 1 0 0
tvservice -e "DMT 87"
fbset -depth 32 && fbset -depth 32 -xres 1280 -yres 240
..
and runcommand-onend.sh
..
vcgencmd hdmi_cvt=360 240 60 1 1 0 0
tvservice -e "DMT 87"
fbset -depth 32 && fbset -depth 32 -xres 320 -yres 240
..
This is what im using...

https://www.ebay.com/itm/New-HDMI-to-5RCA-RGB-Component-YPbPr-Video-R-L-Audio-Adapter-Converter-HD-TV/253156028580?epid=2248106783&hash=item3af14670a4:g:veMAAOSwEfBZui6~

So to recap, 240p works from the boot config, but i can not get it to switch to a different resolution using the runcommand . I would like to set it too.

hdmi_cvt=1280 240 60 1 1 0 0

and it does work but only if i set it in the boot config.

So this is an update, got it working, but its not 100% but good..

This is what im using...

https://www.ebay.com/itm/New-HDMI-to-5RCA-RGB-Component-YPbPr-Video-R-L-Audio-Adapter-Converter-HD-TV/253156028580?epid=2248106783&hash=item3af14670a4:g:veMAAOSwEfBZui6~

what i added to my boot config.


#what worked on my CRT yours may differ. if needed at all
overscan_left=-16
overscan_right=-16
overscan_top=-32
overscan_bottom=-32

overscan_scale=1


#hdmi_cvt=360 248 60 1 1 0 0
#hdmi_cvt=1280 240 60 1 1 0 0
#hdmi_cvt=1920 240 60 1 1 0 0
hdmi_cvt=1600 240 60 1 1 0 0

hdmi_group=1 
hdmi_mode=6 
avoid_safe_mode=1
hdmi_force_hotplug=1
config_hdmi_boost=7
hdmi_ignore_edid=0xa5000080
hdmi_pixel_encoding=2

so I need to just start in 480i
CEA mode 6

and use DMT mode 87 to pick my 1600x240 for retroarch using the runcommand, the biggest problem i was having was switching back to 480i for ES, then i got it working but only 80% of the time so i had to add a sleep command to help with the timing of the switch ..

so this is my runcommand-onstart.sh

tvservice -e "DMT 87" ; sleep 3 ; fbset -depth 8 ; fbset -depth 32; tvservice -s

and this is runcommand-onend.sh

tvservice -e "CEA 6" ; sleep 3 ; fbset -depth 8 ; fbset -depth 32; tvservice -s

..

sleep 3 was needed for it all to work right..

this is a google drive video of it working...

https://drive.google.com/file/d/1QQS8rxP3dBaIJIldj6YoqBMOedK14d03/view?usp=sharing

some pics

https://drive.google.com/file/d/1-3o18evIVNlvwd2CfktyViauQuzJybda/view?usp=sharing

https://drive.google.com/file/d/1-4vFl6dJREXw_WGzrwmjYyPqqMuwY9Pu/view?usp=sharing

https://drive.google.com/file/d/1-8lXRrckHlpDGfTS_BobunVnNasr9OSH/view?usp=sharing

something else I'am working on

https://drive.google.com/file/d/1eCDH_gzMVdlCq-HV_xnIqOCWCa5gWF47/view?usp=sharing

MrCoffee

@mitu got home,, update with a reply,, added a google drive video of it working .. thanks for the help .

mitu

Thanks for providing the solution.
I've reformatted a bit your last reply so the config and commands are more readable.

MrCoffee

@mitu thanks I'm new here, don't know how to do that yet.

mitu

@MrCoffee The posts are formatted with Markdown - https://commonmark.org/help/. I just basically added some ``` and leading spaces to create code blocks.
There used to be a help link shown when you typed a reply/created a new topic which pointed to that help page, but I see now that is gone. Probably removed by a forum software update.

MrCoffee

@mitu Bookmarked thank you .. :)

edmaul69

@MrCoffee if 3 backticks on the line above and the line below your code isnt possible to do on a device your on, you can leave the line above and below your code blank and indent your code lines 4 spaces.

Efriim

@edmaul69
Is there a way to define the syntax highlighting like that? eg. bash, c, xml

MrCoffee

@Efriim lol thats looks cool ,, kinda like fortune cookies in my linux terminal.

Efriim

@MrCoffee
mr! eat your vitamins.
http://ascii.co.uk/art/vitamins

mitu

@Efriim said in hdmi to component CRT Help..runcommand:

Is there a way to define the syntax highlighting like that? eg. bash, c, xml

Yes, you just add the name of the highlighter after the code block start
```xml.

MrCoffee

@Efriim lol nice. I'am saving that one.

mukelarvin

@MrCoffee

Cool video. You’ve got all the solutions I’ve been looking at. Which would you say you prefer? Vga666 to component? Retrotink component? Aliexpress HDMI to component?

MrCoffee

@mukelarvin Well what i use in the video is the cheapest, but as of late I've been using a VGA to Component transcoder, theres a 15khz distro of retropie that someone made that works like a dream. they use some kinda data base for the customs timings, but I do like the RetroTink, its less of a mess when it comes to wires, but its about 90 bucks and needs some time to set up.

So the HDMI to Component is kinda the poor mans way but it does work , it has its small problems , overall its a good starting point .. 12 bucks + 5 or so for the cables.

for the vga666 i think i got mine on ebay for like 12 bucks and the transcoder is like 50 ish now..But its a mess of cables however with the right distro it's what works best for me, most of the arcade games run at the right rez. Retropie CRT Edition.

keep an eye on this guy.He sales vga or scart to component transcoder's ..

https://www.ebay.com/usr/linuxbot3000?_trksid=p2047675.l2559

As far as the Retrotink goes its just the cleanest after setup, less cables and less of a mess. I've trying to get that RGB-pi working with it .

PUME04

I am trying to get an HDMI to Component converter (no scaling, 480i compatible) working with a 27" Sony Trinitron 27FS13 (480i/240p) on a pi4. It looks something similar was done here. I can start a new thread if that makes more sense, but this seemed to be the most recent thread on this topic. Is anyone up and running on a CRT over component on a pi4 using the method here? @MrCoffee, should your method here still work? Is there a more up to date guide for accomplishing this with current hardware/build? Thanks for any feedback.

myzar

@PUME04 no it doesn't work , you can't switch res with tv service , it's broken , the fmks video driver on the rpi4 was made by people who hates crt monitors and cabs ;)

mitu

@myzar said in hdmi to component CRT Help..runcommand:

the fmks video driver on the rpi4 was made by people who hates crt monitors and cabs ;)

The same 'people' added support for video resolution switching to tvservice in the first place and also added support for 240p for analog video, so I think your comment is out of place.

myzar

@mitu i was simply joking , but framebuffer support is such a basic stuff that is amazing that is still broken , and without anyhope to be fixed since the new kms in 5.4 is broken in the same way.

It's not a priority and no one cares, that's a fact :)

P..s the vc4 driver is not made by the same people who coded dispamax