Help with Super Resolution CRU - Sony CRT

[warcelo]

Hello, folks

I need help finding out what is wrong with my setup.
Description of the system:
Sony KV (BA-4) 20M40 with Component MOD
HDMI to component converter -> https://www.amazon.com/dp/B082HT11MH?re ... i+to+compo
PC with Intel UHD 620

The goal is to run Retroarch and get it on the CRT at 240p.

I used CRU to create a resolution of 2560x240 @60HZ and I can select it for the second display.

Problem is, it does not show a stable image, it is warped to the right with some artifacts. - The colors seem to be correct, I can see my desktop and it looks right but it is far from stable.

Pictures:
[url=https://flic.kr/p/2pUL9mT]
[url=https://flic.kr/p/2pUNhmF]
[url=https://flic.kr/p/2pUMScx]

[Josh128]

Looks like you are sending a non 15KHz signal to the TV. Make sure the horiz frequency is within ~ + or - 10% of 15KHz.

[warcelo]

Thanks, Josh

It is 15.5khz

Just changed it to 15.0kHz and the result is basically the same.

[Fudoh]

There's a pretty good chance that you don't get a 15khz output from your GPU *although* CRU is showing you that resolution. There's a good reason why external downscaling is a thing. Most GPUs and most definitely all IGP just aren't able to output 15khz.

[warcelo]

There's a pretty good chance that you don't get a 15khz output from your GPU *although* CRU is showing you that resolution. There's a good reason why external downscaling is a thing. Most GPUs and most definitely all IGP just aren't able to output 15khz.

That maybe the case but I've seen a lot of ppl using the Intel graphics command center to change the resolution manually and make it work with CRTs, I'm sure they are all using IGPs.
I will probably get my oscilloscope and take a look at the signal and make sure it's 15kHz.
Thanks for the help! Any other comments are welcome.

[orange808]

If there's no follow up, readers should assume the card does not output 240p, despite what CRU reports.

Reddit isn't a great place to get information about niche subjects. It's like trying to drink from a fire hose. There's too many threads to follow and too many users chiming in. People that could answer your question won't see your thread and there's a flood of misinformation sitting alongside the proper answer. You also can get a flood of downvotes from a crowd of people that are straight up wrong about game hardware and upscaling.

[warcelo]

Hello, Orange
The card does output 240 I just don’t know if at the correct frequency.
Im traveling so was not able to verify, when back home I will look with an oscilloscope and post the results.
Thanks!