cvt_modeline_calculator_12 VS cool-retro-term

OP's approach looks cool but a bit baroque. I'm also hacking around EDID issues and it turns out there's a nice GUI program to decode and (lightly) patch it: https://packages.debian.org/unstable/utils/wxedid

I have to do more involved full EDID reconstruction surgery tho since I need to add DTD entries rather than just change existing ones. So I'm looking at [edid-generator] together with [cvt12]. The latter can calculate xrandr modelines for VESA standard timings that all seem to work with my TV. It adds an option for NTSC timing over regular cvt which is already in Debian.

[cvt12]: https://github.com/kevinlekiller/cvt_modeline_calculator_12

4) On Xorg, a custom resolution is represented using a "Modeline", which can be manually calculated, or generated using a utility like cvt. There's also a modified version with more advanced options. Then the modeline can be temporarily added using xrandr, or permanently added using /etc/X11/xorg.conf. Though in my experience, the Nvidia driver is a bit picky about adding modelines sometimes, it seems to be more accepting if you add them in xorg.conf instead of xrandr, and also if you add settings documented here to xorg.conf to disable some forms of mode validation.

Instead of using cvt or gtf, I used cvt12 to get get my Modeline. With cvt12, I was able to get a refresh rate of 160. It is 10 frames lower than my monitor's max, but I'm still happy with this solution.

If you haven't jumped ship to Wayland yet, maybe try using the same custom modeline for both screens? IIRC, you generate the modeline with a cvt calculator that supports reduced blanking v2, and then use it with xrandr --newmode , xrandr --addmode , xrandr --output --mode . Those 3 commands will need to be autorun on login, or possibly you could put the modeline in an xorg.conf.d snippet.

Build this from source: https://github.com/kevinlekiller/cvt_modeline_calculator_12

As to how I got the "magic" numbers in the first command? It was done via this program: https://github.com/kevinlekiller/cvt_modeline_calculator_12. I ran it like this:

Then you use the cvt tool (https://github.com/kevinlekiller/cvt_modeline_calculator_12) to calculate a new modeline for your monitor (I'm assuming by "custom" refresh rate, you want to overclock your monitor)

https://github.com/Swordfish90/cool-retro-term

This is the best way to play short of hooking up your needle printer as a faux teletype terminal.

Very related: Cool-Retro-Term (CRT) - a terminal that makes it look retro ;)

https://github.com/Swordfish90/cool-retro-term

You're covered: https://github.com/Swordfish90/cool-retro-term

Seems like a good spot to mention https://github.com/Swordfish90/cool-retro-term

Cool Retro Terminal is a nice accessory for when doing recording or screenshots - cause it looks cool. Can't use it as my daily driver tho.

And enough settings in there you can make it look like your favourite old one.

I'd guess most things you can get now are just regular command prompt style windows with a "retro" look (colour scheme). Oooh, you can change the text to green and maybe add a scan line effect. I am looking for a full experience like the Secret Geometry programs! The only similar-ish one I have found is Cool Retro Term, but that is for Linux and Mac only it seems :/

not directly related, but I've been thinking about getting an old CRT monitor, launch https://github.com/Swordfish90/cool-retro-term and start working

This puts me in mind of Cool Retro Term. Lots of built in schemes.

https://github.com/Swordfish90/cool-retro-term

Usually packaged by your distro.

This together with cool-retro-term[1] is an absolute must on my machines for real hacker hours.

[1] https://github.com/Swordfish90/cool-retro-term

I've enjoyed using this. I don't run it for long but I do run it sometimes for the sake of nostalgia. When I do run it, I run it in full screen for the complete experience. However, to balance practicality with nostalgia, I run a tmux session with the cool-retro-term, so that once I get tired of it, I can quickly switch back to my regular terminal without losing my terminal session.

The effects are configurable. I disable the settings named Burin, Glow Line, and RGB Shift to get crisper and less distracting experience. The RGB Shift setting is disabled for most built-in profiles anyway but enabled for some profiles like Vintage and IBM Dos. The Vintage profile is quite amusing. Everything is cranked way up. The blurry text and the incessant flickering of the screen create an unsettling impression that the monitor might break down any moment.

By the way, if you didn't notice it the app is named cool-retro-term and it abbreviates to CRT. The app icon[1] is also a CRT followed by the cursor. Guess what else abbreviates to CRT? Yes, "cathode-ray tube" of the cathode-ray tube (CRT) computer monitors

[1]: https://github.com/Swordfish90/cool-retro-term/blob/f157648d...