Author Topic: 240p attract/theme/frontend  (Read 6427 times)

jessiewonka

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240p attract/theme/frontend
« on: January 28, 2017, 04:52:13 PM »
Greetings! I've been working with dee2eR's jamma-to-pi3 setup for a little while (https://forums.arcade-museum.com/showthread.php?t=363338). While the games are playing great in beautiful 240p, the default Attract Mode setup appears to be in 480i -- jittery screen and barely legible text on my CRTs. A few people suggested Verticools theme but it also appears to be 480i.

Does anyone have experience with a 240p theme who can help?

jessiewonka

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Re: 240p attract/theme/frontend
« Reply #1 on: January 29, 2017, 05:22:13 PM »
I've since managed to get the menu to be 240p and the launch scripts set to ignore switching back to 480i. But unless anyone else is interested, I won't go into details here. Maybe I was the last to figure it out!

nitrogen_widget

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Re: 240p attract/theme/frontend
« Reply #2 on: January 30, 2017, 11:07:43 AM »
I'm planing to hook up a CRT TV through component (close to RGB) at 240p so yeah, would like to hear how you did it.

keilmillerjr

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Re: 240p attract/theme/frontend
« Reply #3 on: January 30, 2017, 11:45:31 AM »
I'm planing to hook up a CRT TV through component (close to RGB) at 240p so yeah, would like to hear how you did it.

I'd like this too. But unfortunately, rpi firmware will only allow interlaced out composite. ;(

https://github.com/raspberrypi/firmware/issues/683

jessiewonka

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Re: 240p attract/theme/frontend
« Reply #4 on: January 31, 2017, 12:52:10 AM »
As I'm still not entirely sure which files originated from what, I can only reference my current setup, which is the pi-to-jamma mentioned above. The key to forcing 240p for Attract Mode was to modify:

1) /boot/config.txt (this should've been more obvious to me, as the file itself points this out)
    hdmi_group=1
    hdmi_mode=8

2) then modify all /boot/launchers scripts and comment out the last lines, e.g.
    # resolution back to 720x480i
    # tvservice -e "CEA 6 HDMI"
    # fbset -depth 8
    # fbset -g 720 480 720 480 16

This has made Attract Mode render in 240p on my 15khz CRT, even after quitting a game.

nitrogen_widget

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Re: 240p attract/theme/frontend
« Reply #5 on: January 31, 2017, 08:50:57 AM »
I'm planing to hook up a CRT TV through component (close to RGB) at 240p so yeah, would like to hear how you did it.

I'd like this too. But unfortunately, rpi firmware will only allow interlaced out composite. ;(

https://github.com/raspberrypi/firmware/issues/683

I'll be using VGA out via GERT board once they come in.
I tried to assemble one but honestly the damn solder pads were too small and my soldering tip too big so i ordered them assembled from DX.com. :)

After that i have a vga to rgb converter boxes and various other things that should get me 240p on a TV.
I hope.
I honestly don't know which i'll need in which combination but I guess i'll find out. LOL!

keilmillerjr

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Re: 240p attract/theme/frontend
« Reply #6 on: January 31, 2017, 09:51:51 AM »
I'm planing to hook up a CRT TV through component (close to RGB) at 240p so yeah, would like to hear how you did it.

I'd like this too. But unfortunately, rpi firmware will only allow interlaced out composite. ;(

https://github.com/raspberrypi/firmware/issues/683

I'll be using VGA out via GERT board once they come in.
I tried to assemble one but honestly the damn solder pads were too small and my soldering tip too big so i ordered them assembled from DX.com. :)

After that i have a vga to rgb converter boxes and various other things that should get me 240p on a TV.
I hope.
I honestly don't know which i'll need in which combination but I guess i'll find out. LOL!
HDMI can pass 240p and then you could try using a RadioShack hdmi to composite and see if it holds? I just bought the adapter to hook up my Apple TV to my tv, but can't find the damn remote.

verion

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Re: 240p attract/theme/frontend
« Reply #7 on: January 31, 2017, 11:51:28 AM »
Quote
I just bought the adapter to hook up my Apple TV to my tv, but can't find the damn remote.

If you have iPhone you can download app that "emulates" apple remote.

keilmillerjr

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Re: 240p attract/theme/frontend
« Reply #8 on: January 31, 2017, 12:29:57 PM »
Quote
I just bought the adapter to hook up my Apple TV to my tv, but can't find the damn remote.

If you have iPhone you can download app that "emulates" apple remote.

I have to do a hard reset to connect to crt and reconfigure wifi network. The app needs to be on the same wifi network to work. SOL until I find one.

nitrogen_widget

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Re: 240p attract/theme/frontend
« Reply #9 on: February 07, 2017, 10:44:08 AM »
I'm planing to hook up a CRT TV through component (close to RGB) at 240p so yeah, would like to hear how you did it.

I'd like this too. But unfortunately, rpi firmware will only allow interlaced out composite. ;(

https://github.com/raspberrypi/firmware/issues/683

I'll be using VGA out via GERT board once they come in.
I tried to assemble one but honestly the damn solder pads were too small and my soldering tip too big so i ordered them assembled from DX.com. :)

After that i have a vga to rgb converter boxes and various other things that should get me 240p on a TV.
I hope.
I honestly don't know which i'll need in which combination but I guess i'll find out. LOL!
HDMI can pass 240p and then you could try using a RadioShack hdmi to composite and see if it holds? I just bought the adapter to hook up my Apple TV to my tv, but can't find the damn remote.

hdmi to composite adaptor has to have an SD mode.
Plus i don't think those will pass 240p.
Think they are locked to 480p

RottenToTheGore

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Re: 240p attract/theme/frontend
« Reply #10 on: May 30, 2017, 07:07:59 AM »
This may be a good solution for me, depending on if this can be tailored for VGA out. I'm currently using CRT_Emudriver going to a CRT.

Any idea how it could be done? Thanks!