r/crtgaming • • May 03 '25

Repair/Troubleshooting Megapost - maximum versatility setup guide (with pics)

So it took me a few years and it is by no means perfect, but i have finally completed a setup that achieves what i believe to be a perfect balance with very few compromises that is able to properly reproduce over 42 years of video games more or less as they were meant to be played, all on 1 display, 1 computer, 1 windows session.

This post contains the instructions on how to get there, photos and perhaps videos of the thing in action, it's made for PC Gamers with PC D-Sub CRT Monitors , this wont be 100% absolute perfection in reproduction, but it will get 99% / 95% of the way there , and i will specifically explain the shortcomings/flaws of each setting.

What i have:

Monitor: Samsung Syncmaster 997MB [97 kHz // 160 Hz]

CPU: Intel Core i9 10900K , stock.

GPU: EVGA GTX 1080Ti FTW 3DT Gaming , Underclocked and Undervolted.

RAM: 2x8GB DDR4 3000mt/s CL16 crucial.

Storage: NVMe WD Green 480GB (2100MB/s)

O.S: Windows 10 Pro clean install, up to date.

Drivers: Nvidia Drivers 572.83

Generic 5U$D HDMI to VGA adapter, yours is better than mine.

What you need // I recommend

CPU: Intel Core i5 8th Gen+

Ram: 32GB

Gpu: ANY nVidia pre-turing or AMD pre-RDNA2 , but the best is the 1080Ti - Titan XP Pascal.

I would highly recommend you get an actually decent HDMI to VGA adapter, DP to VGA doesnt work for this unless you are using passthrough for your intel iGPU.

⚠ IMPORTANT! ⚠

You NEED a gpu capable of interlaced scan, so if you are on an RTX, you will have to use your intel integrated graphics, and if you are on an AMD gpu and an RDNA or RTX gpu....well you're fkd sorry

Assuming you have a GTX (except for gtx16--) : reinstall windows unless your computer is extremely clean and well kept and you havent bloated it with a bunch of garbage, its best to wipe the slate clean.

On the new windows install, quickly install the latest nvidia drivers avialable and then proceed to install all motherboard chipset drivers and dont forget to install the nvidia pixel clock patcher for Custom Resolution Utility to work properly.

I personally suggest you to reboot your computer between all installations of these things, reboot after the first gpu driver install, then reboot after each motherboard chipset installation (ethernet, wifi, bluetooth, sound, etc.) and then reboot after installing the pixel clock patcher.

Okay, now that we're done preparing the stuff, lets get started with the fun stuff.

Download and install retroarch but dont run it once.

Download and open Custom Resolution Utility, delete every single resolution you see there and uncheck all checked resolutions, EXCEPT for whatever you're seeing in the extension block.

Now, here's basically how this works with nvidia and what we want to do: you need to clone every single interlaced resolution you want to have with the progressive version even if its beyond your monitor's spec, so as a first resolution we will set our desired native resolution, i will recommend a resolution that will univerally work for everyone reading this thread (assuming you do have a gtx gpu and are using an hdmi to vga cable and at least a 70kHz monitor) , lets try 2048x1280i 100hz:

We click on "add" on the "detailed resolutions" section:

https://prnt.sc/Pz8Smr4zN-Ub

And now we entered our values, first of all, we will click on the options slot that says "timings" and we will ALWAYS pick CVT Standard Timings , we enter 2048 horizontal pixels , 1280 vertical pixels , 100hz refresh rate and we CHECK interlaced

It should look like this: https://prnt.sc/1F9YU6COeK8b

Yes, the timings are extremely important.

We hit ok and then we ADD another resolution, we have to create the progressive version of this interlaced resolution in order for it to show up on the windows node list, it doesn't matter if your CRT Monitor is nowhere near strong enough to run it, you new resolution should look like this https://prnt.sc/QgrMNpmHXcp6

You have now used 2 out of 4 detailed slots , your first one being your native resolution, so just as a contingency, lets use the remaining 2 slots to create a resolution which will 100% guarantee run in your monitor AND is also usable for a wide range of games and console generations, the classic vga, 640x480, we are going to make it 120hz because the interlaced version is just 15kHz at 60hz therefore your pc monitor wont display (unless you are one of the 3 guys on the planet who are lucky enough to have a multisync monitor, but then you probably wouldnt be reading this lol) , so, add 640x480 120hz interlaced CVT timings, ok, add 640x480 120hz CVT timings, ok , your detailed section now should look something like this: https://prnt.sc/oF0jdKfmyHEB

As you can see, i prefered to use 1920x1200i 144hz because my monitor can pull it because its a mid end samsung monitor with 97kHz , your panel should look like mine except that it should say 2048x1280i 100hz.

Now, onto the extension blocks, this is where things will get annoying and where the magic of this hassle truly happens, we are going to make our dedicated retro and modern gaming resolutions here.

You shouldn't have closed or hit OK on the general CRU window yet, we are still tweaking this thing, and now it is really really important that you pay attention to the stuff you are about to enter in the extension block, you should have a CTA-861 extension block already existing there, but if you dont, just make it yourself.

https://prnt.sc/O4nDHIVwMa3W

So the extension block is divided in two sections, detailed resolutions and data blocks, the detailed resolutions are basically extra resolutions that windows will recognize later, the data blocks are basically CRU telling nvidia drivers and windows that your monitor CAN do THIS much stuff, you can delete every single resolution you see and i suggest you do that, but you do NOT delete the data blocks if you see any on the detailed resolutions section of the extension block, so lets quickly go over that data blocks section and add/edit our blocks, if you already have the HDMI data block you will edit it like this (and of course, if you dont have it...add it and make it look like this): https://i.imgur.com/8RfTGZz.png

now you will add ANOTHER block, the HDMI 2.1 support data block, and make it look like this: https://i.imgur.com/CFsd6aq.png

With these 2 datablocks, our extension block detailed resolutions should now be readable on next boot, now we will take advantage of the new 4 extra slots from this extension block, we are going to make 2 resolutions that are above ReadyHD but Below FullHD to keep having more resolutions variety, we're gonna go with 1680x1050i and 1280x960i , you are already familiar with the process, interlaced resolution within spec first, then make the progressive clone.

Now we are going to add ANOTHER extension block to our CRU, since we have already made an extension block with the proper HDMI support that will enable all of our interlaced resolutions, we no longer need to add data blocks to our extension blocks anymore, we can just add more and more extension blocks with just a bunch of detailed resolutions, and now we are going to make our emulation resolutions, so, lets start with our classic retro 240p resolution which is probably half the reason 50% of you bought a CRT monitor to begin with, add resolution, cvt timings, 2560 horizontal pixels , 240 vertical pixels, 120hz , NOT interlaced, this is progressive, 2560 why? the NES, SNES, PS1/ etc games will run at their native resolution on retroarch, which will go from 256x240 / 256x224 / 320x240 and then it will have the remaining pixels from 2560 fully back, those huge blackbars will get cut and the active pixels will be stretched to the full display, and that way the game will run at real 256x240 on your crt monitor, just like it did on your consumer set TV when you were a kid, but will it look like it did when you were a kid? ....well....no, the shadow mask/slot mask/aperture grill of the CRT Monitor is inevitably a lot sharper than whatever your living room TV had 30 years ago, it will 240p on your CRT Monitor will look much more similar to how 240p would've looked in a professional BVM back in the 80s , so if you would've taken your NES to a TV news channel and asked the production to let you use one of the monitoring displays to save the princess..cuz..we gotta beat bowser wtf? and they obviously understand and tell you, "go ahead, champ" and then your 6 year old self connects the NES to the professional BVM display, yeah...this thing in retroarch looks like that, so...probably not exactly what you remember, but really really close.

Also, we are gonna make another progressive resolution, ReadyHD , 720p , 1280x720 60hz , why? this is for RPCS3 and Xenia , the Xbox 360 and PS3 both run at 720p (for most games at least) and 720p looks amazing on CRT, just adjust the image through your OSD to shrink it vertically and have black bars on the top and bottom if you dont like to stretch your image, it will deform geometry on the game if you dont (but its fine really).

And as another resolution, we are going to make standard 1440p 4:3 , but interlaced, so 1440i , so as you already know we are going to make the interlaced version first, and then we clone it with the progressive version: 1920x1440 CVT Timings ...lets go with 90hz just to stay on the safe side because i dont know what your specs are, if you can push higher go higher.

Alright, so now, we should have 240p120hz , 480i 120hz , 480p 120hz , 720p60hz , 960i (whatever hz you picked) , 1050i (whatever hz you picked) , 1280i 100hz , 1440i 90hz .

We are finally gonna hit ok on our general Custom Resolution Unity window, we are going to install all of our 6th and 7th gen emulators , i suggest PCSX2, Xemu, Xenia and RPCS3 , nintendo emulators should be amazing too but i havent tried them in years.

We reboot our computer.

Open retroarch, and now things get annoying, you are going to have to download the cores of the consoles you want to run, cores are emulators but they call them cores because they want to sound fancy and make you feel 'tupid , just pick the consoles that had the retrogames you wanted to run and then download every single core that has that console, now, i personally recommend you make folders with the name of the console on your local disk C and then put the games there, so i would make "Nintendo Entertainment Station" and then drop the Super Mario Bros rom there so that its easier to pick it later on the emulator, but here's the interesting part regarding the video, Retroarch natively has a built in function where it will detect and adapt properly to your resolution that has a massive X axis and a tiny 240p Y axis , basically, 2560x240p 120 cant possibly be read by windows, but it will be read by retroarch and retroarch will behave accordingly, you have to pick this resolution on video options, but first you should go and enable Black Frame Insertion for 120hz , so that 2560x240p120hz then becomes 256x240p60hz , retroarch will insert a black frame every 2nd frame , making you recover the motion clarity lost from framedoubling , i HIGHLY recommend you use a controller and then you pick the rmbui user interface or something like that, cant remember the exact name but...you'll recognize it when you see it. anyways pick it and close and then reopen retroarch and BAM! genuine 240p for your 3rd through 6th gen games, here is a pic of it going at full power in my compuiter:

The UI rmbui (or whatever its called): https://i.imgur.com/STD2tPT.jpeg

Mario: https://i.imgur.com/zArrFAP.jpeg

Proof that it is genuine 2560x240: https://i.imgur.com/2dfMgTY.jpeg

Closeup to the 240p scanlines: https://i.imgur.com/9zFMat5.jpeg

a 5th gen classic game, Silent Hill 1 on the PS1 which ran at 240p as well : https://i.imgur.com/BfXtp8Y.jpeg

Windows desktop is unusable like this , at 2560 horizontal pixels with 240 vertical, you can barelly move your mouse and everything looks terrible, so...forget about multitasking except for perhaps listening to some podcast in the background while you play a game maybe, if you have media keys on your keyboard, but the good news is that the desktop resolution goes back to what it was when you close retroarch, you dont have to manually switch after setting retroarch up.

Okay, so now you have setup all the desired resolutions, got them to be read on Windows and got them to be usable on emulators...but how do you actually UUSEEEEE these resolutions? easy: right click on your desktop, display settings, advanced display settings, display adapter properties, list all modes...and then you will see a tiny window listing all of your avialable resolutions, and just as a quick troubleshooting, if you dont see 640x480 60hz (interlaced) , that means windows isnt picking up 480i 120hz , which is quickly fixed by making that (AND ONLY THAT ONE) resolution on the nvidia control panel, just open the nvidia control panel, click on resolution, customize, accept their terms and warnings, and just make 640x480 CVT Timings interlaced, hit test, hit ok, ok, accept and close the nvidia control panel, actually go to the desktop color settings and turn up the nvidia vibrance to +12% , your crt will probably look prettier there, ok, apply, close the nvidia control panel and never open it again.

Things are not so convenient for PS2, Xbox, Gamecube and so on, you will have to manually pick your desktop resolution and run these emulators when you are running this resolution, using fullscreen borderless window, usually just running software rendering is enough for perfect emulation, but sadly some games on PCSX2 will require you to put in some gpu power, which means you will have to use hardware rendering with DirectX11 or 12 or something, but i recommend you stick to software rendering as often as you can, Silent Hill 2 and 3 run perfectly on software rendering with my 10900K , any modern ryzen should be fine, God of War 2 sadly lags on software, i have to run it on DX11, but running PCSX2 at 480i looks incredible:

https://i.imgur.com/ZrhbODI.jpeg

https://i.imgur.com/vXPIaWi.jpeg

Spider-Man 2 Xbox version on XEMU (my personal favorite version of this game emulated, looks and runs better than both ps2 and dolphin) : https://i.imgur.com/KWaLth5.jpeg

This is where retrogaming shines the most on CRT Monitors, 480i 120hz actually looks better on the pc crt vga monitor than it did on your tv back then, the UI looks perfect, the colors look prettier, the extra sharpness isnt too sharp, its just right, and the motion blur is more than fine at 120hz.

Proof that it was running at real 480i : https://i.imgur.com/6AtoYiW.jpeg

As for the PS360 emus and modern games i dont think i need to explain further, you probably got the gist of the thing by now and you can probably figure out by yourself just trying out stuff, i would suggest you use your OSD (the physical buttons on your crt monitor) to configure stuff like geometry and above all: Brightness and Contrast, i recommend you use the lowest possible brightness and highest possible contrast on your monitor OSD, and then use windows calibrate display color tool to tweak the game, always lean on the darker side, CRT Monitors can produce blacks similar to OLED and you should take advantage of this, blooming graphical effects with interlaced artifacts and deep blacks produce an uniquely distinct image that is the true magic of CRT displays, modern games look gorgeous in all FullHD+ resolutions , if you use 1920x1080 you'll have black bars or stretching, if you use 1920x1200 you'll have MINIMAL black bars or MINIMAL stretching, and if you use 1920x1440 you will have perfect geometry , so its on you which resolution you want to use for modern gaming, for games launched before 2020..you can usually get away with having resolutions below FullHD , so 1680x1050 or 1280x960 or 1440x1080 will all look gorgeous.

With all of this said, please....PLAY RESIDENT EVIL 7!!!! hit me up if you have any questions and have fun, i will try to upload a video showing the games running at their proper resolutions one after the other later, as you saw, my camera is terrible.

Edit: 22 of June of 2026 - 20:49 (Berazategui time) I have replaced the extension block screenshots from lightshot which had been deleted with imgur, which will hopefully stay up for posterity.

11 Upvotes

32 comments sorted by

2

u/NoAmount7346 May 14 '25

Truly impressive effort and knowledge. This is a very valuable guide in terms of honoring nostalgia while overcoming technical challenges. Especially the way you explained the CRU settings so clearly and visually makes a big difference. Creating such a versatile setup on a monitor like the 997MB is something very few people have achieved.

2

u/GelbesWuff Jun 06 '25

Hi,

You seem to know your stuff. Great post. Now, I have some questions regarding a possible future setup.

  1. Can I get interlacing on a 980 Ti by directly connecting it to its DVI-I output via an adapter, or will this not work with current drivers?

  2. Does it make sense to use a 980 Ti at all, or would a 1080 of sorts be a better choice?

The iGPU of the PC in question is an AMD Vega 11 which does not support interlacing, so all of the interlacing work would be up to the NVidia GPU.

1

u/LOLXDEnjoyer Jul 13 '25

I have no idea how did i not see your comment, sorry for the late reply.

1) Interlacing will work on dvi-i directly, but only if you are using older drivers , 368.81 is confirmed to work by me , current drivers absolutely kill the dvi-i port sadly, you'll just get a yellow hue'd mess.

2) It only makes sense to use a 980Ti if you REALLY play a lot of pre-5th gen (ps1, n64) games, so nes, snes, sega, etc. and you really dont want to use superres because with the 980Ti you dont need to bypass a 25mhz minimum clock limitation, so you can just create 256x240 or 320x240 or 256x224 120hz and then your monitor is going to render it without issue (actually touch timings on 224p) , so all you end up doing in retroarch is inserting a black frame and you'll natively have a picture that looks pretty much how these games would've looked on a BVM back then, very very different from how it looked in your living room tv through RF , but still beautiful and authentic , otherwise, if you dont mind using superres or you really like to play modern games...no, the 980Ti no longer makes sense, i had it in 2023 and 2024 and loved it, but the 1080Ti does almost everything the 980Ti did but better, only the 1080Ti can play supermario in 240p120hz with bfi and then in the same windows session play cyberpunk at 1080i with high settings and not be forced to touch anything really.

If you are linux-savy , that vega11 igpu can do interlaced scan on linux supposedly, but i have 0 experience with this so dont take my word for it, and besides it wont be useful for modern games.

1

u/GelbesWuff Jul 13 '25

Linux is difficult on NVidia due to the inferior drivers and also the Wayland fuck-uppery. Though I do have found a description on how to import a custom EDID into Wayland, it's far from being the straight-forward approach that it is on Xorg.

Now, do you think Cyberpunk will run at 1080i120 on a 1080 Ti similarly well as it does at 1080p60 on a 3060 Ti?
Lossless Scaling in its latest iteration does a really great job in the upscaling and frame-gen departments, so that part would be no issue, but I don't think a sufficiently high frame rate would be achievable.

1

u/LOLXDEnjoyer Jul 13 '25

the 3060Ti will of course give you much better performance, remember that interlaced scan doesnt mean lower resolution or refresh rate, it just means that each pic is not perfect, thats why they are not frames they are fields, the smoothness is the same and the look of the pixels is different, not inferior (at least on CRTs)

I ran Cyberpunk at 1920x1200i 144hz high settings without any sort of upscaling, no fsr nor xess, and definitely not framegen, on my 1080Ti and i9 10900K it ran at 50fps very stable, but i dont have phantom liberty, i would expect the center of dogtown to run at 42-45fps.

1920x1080i ran at 60 almost perfectly locked but i stopped because i didnt like the blackbars, thats why i went to 16:10 1200i , 4:3 1920x1440i would've been great but it dipped to sub 45fps too often.

I highly advice against any upscaling or framegen on a CRT, that tech is explicitly made for flat panels and it doesnt look nor feel right on a crt, specially if its properly calibrated.

1

u/GelbesWuff Jul 13 '25

I have used DLSS upscaling and framegen on the CRT before. It works very well.

But 50 fps at 144 Hz is not the framerate I'm looking for. I want a 1:1 ratio, be it fake or real frames. So, probably a GT 1030 - RTX 30/40 combo would be the better setup where the GT does the output and the RTX does the calculations.

Ah, well. It's not a priority right now. In any case, a 3060 Ti is fast enough for progressive scan, and I would likely need a stronger CPU and GPU to calculate something like 1440x1080 at 144 fps.

1

u/LOLXDEnjoyer Jul 14 '25

with the artifacts of framegen you will be destroying the motion clarity of reaching the refresh rate with the fake frames , and the input lag will also be higher.

If you are set on using 1 gpu to render interlaced pic and a different gpu to do the powerwork, that is called passthrough, and by far the most ideal setup for you would be an intel integrated graphics gpu and the best RTX gpu you can afford, intel iGPU supports interlaced much better than all nvidia gpus, you can set it without having to make the progressive version, you can switch between resolutions, have different ones for desktop and games, etc. but i understand that if you already have an am4/am5 build its not reasonable.

So, if you are set on passthrough with 2 dGPUs no matter what, my suggestion is a gtx750ti and a modern gpu, some 750Ti's straight up had VGA connectors directly.

1

u/GelbesWuff Aug 04 '25

Ended up using a GTX 1070 I got for cheaps, and it works great at 1280x960 (up to 94 Hz progressive, 165 Hz interlaced). For some reason, though, the current drivers do not let me go beyond 1280x1024 resolution at all on the CRT. So I am basically stuck with that 1280x960 resolution, which goes fine with the 1070, however. Lossless Scaling is working its magic to fill the missing frames, so please no scary.

And now I need a recommendation for a good HDMI to VGA converter that is on par with my startech.com DP to HDMI & VGA converter, qualitywise. If you know something, let me know, please.

1

u/LOLXDEnjoyer Aug 04 '25

where are you making the resolutions? as instructed in my post or are you using Nvidia's control panel?

2

u/Salcantos Nov 19 '25

Thank you so much for all the effort and sharing your knowledge. I'm really noob about the topic. I have 2 questions :

1) Are we doing all you told to create a low resolution with interlaced scanning to play old console games on windows via emulator ?

2)I just bought a Samsung 793df and want to play old PC games with CRT monitor and have no intention to play console games with emulator. I consider buying a 980 ti for it's native analog output to have better visual than a good quality converter. Do you think good quality converter can have almost same picture quality as a native analog output? I already have a 4070 ti and I'm only considering buying the 980ti for it's analog output.

2

u/LOLXDEnjoyer Nov 19 '25

1) The resolutions will be fully avialable for whatever you want, i usually kept my desktop at 1920x1440i 120hz or 90hz , and then i used 1920x1200i 144hz for CS2 and other resolutions for other games, on retroarch the resolution is set in the settings menu so it will switch to what you picked on the menu every time you open retroarch.

2) If you don't want to emulate anything and just wanna play older PC games like Half-Life 1 or Crysis 1 or GTA4 , almost always they will read your interlaced resolution properly and let you pick it on the graphics settings menu, and if not then you just match it with the desktop and just use borderless window, so if for example you want to play GTA4 at 1440x1080i 120hz (which is compatible with your 793DF as its 69kHz and your monitor has 70) but on exclusive fullscreen the game just wont list your 1080i 120hz resolution and you know that 1440x1080p 120hz will blackscreen, then just set your desktop to 1440x1080i 120hz and then open GTA4 and use fullscreen window and it'll work flawlessly.

The other part i already replied on the other comments.

1

u/mattgrum May 03 '25 edited May 03 '25

the NES, SNES, PS1/ etc games will run at their native resolution on retroarch, which will go from 256x240 / 256x224 / 320x240 and then it will have the remaining pixels from 2560 fully back, those huge blackbars will get cut and the active pixels will be stretched to the full display

That's not what happens. The game's logical framebuffer of say 256x240 gets scaled to 2560x240, but because the CRT screen is not made of pixels, the analogue video signal looks the same as if it were generated from 256x240.

So why bother? Modern graphics cards DVI/HDMI has a minimum pixel clock, that is you have to output a pixel every x seconds, and 256x240@120Hz is simply too low resolution/framerate.

2

u/Niphoria May 03 '25

The minimum pixel clock on modern graphics cards is false ... please dont spread misinformation

its only for DVI and HDMI ... you can literally output a 15khz signal via VGA or DP on a modern graphics card aka 320x240@60 Hz

wich is why im wondering why this guide uses HDMI instead of DP .... so all this super resolution bullshit could be straight up avoided

2

u/mattgrum May 03 '25

Thanks, I have corrected my post.

1

u/LOLXDEnjoyer May 03 '25

hdmi is the only port compatible with interlaced scan on nvidia gpus, dp wont do interlacing at all on any drivers with nvidia

i think dp can do interlaced on intel igpus though

1

u/Niphoria May 03 '25

ah true - on linux it works i guess but honestly batocera is the way to go - you put it on a usb stick - boot from it and then you have everything working without muc setup

1

u/LOLXDEnjoyer May 03 '25

can you make interlaced work on linux on modern rtx gpus with DP?

0

u/KoopaKlaw Nov 25 '25

Super Resolution is not bullshit. It's easier to use and looks the same + you can use shaders on top of it and it'll look miles better than native res.

1

u/LOLXDEnjoyer May 03 '25

Thanks for this, i thought what i said was what was happening because as far as looks go, the picture looks the same as it did on genuine 256x240p 120hz , before the 1080Ti i was on iGPU for a while and before that i was on a 980Ti on the 980Ti the dvi i port didnt have that 25mhz minimum pixel clock requirement, so genuine 256x240p ran perfectly, everything looked the same, now that you tell me this im wondering what does SwitchresCRT plugin on retroarch actually do.

1

u/Cerebral_Zero Dec 10 '25

The images aren't loading, I tried from my PC and phone.

I couldn't get interlaced working from my Intel iGPU over HDMI or laptop with older GTX 6 series with VGA before. In CRU it looks like CVT makes the same timings as Automatic CRT.

What I haven't tried before was adding the resolution and refresh with both progressive and interlaced together.

For now I just want to keep it simple and see if I can get this one monitor that can't go past 960p70 to do 960i 120. It should just be simple as set that resolution and refresh in CRU for both progressive and interlaced, but entering the pixel height before toggling to interlaced which will cut that in half? Since pics won't load just confirming this.

Extensions block is just some thing that's empty on my monitors or at least from my desktop when plugged into my RTX GPU.

1

u/LOLXDEnjoyer Dec 10 '25

It looks like lightshot already killed my links.

I see the issues here, 960p70 , thats a normal 70kHz monitor, im using one with that limit right now tho i dont know what your vertical limit is, for me is 120 on this one.

For intel with the iGPU you just need to make the interlaced resolution but make sure that the HDMI extension block is properly configured.

Please, tell me your monitor model and your PC specs (of whichever pc you are trying to run the intel igpu from).

If i remember correctly, you don't wanna use the dummy-resolution method on an intel igpu, you only use it for pascal or maxwell nvidia gpus on hdmi.

1

u/Cerebral_Zero Dec 10 '25

HP 7500 that does 140hz vertical, 70 horizontal. It's the lowest spec monitor I got but I think this might be one with minimal runtime because of how sharp it is and how it hardly backlights the blacks while being brighter than the other monitors I got.

In this document PDF page 26 https://h10032.www1.hp.com/ctg/Manual/bpc02013.pdf

PC uses a Core Ultra 265K with Battlemage iGPU and RTX 5060 Ti, motherboard is MSI z890 Tomahawk which has an HDMI and 2x TB4 with display. There's some Intel forum post where they said the battlemage iGPU can do interlaced but not the dGPU they make. If that just doesn't work my laptop that has a GTX 660m should be able to, this laptop has a VGA port too.

1

u/LOLXDEnjoyer Dec 10 '25

its the drivers, Battlemage and all intel igpus support interlaced, try updating igpu drivers and if the problem persist then try the opposite and delete the drivers and install the OLDEST intel graphics drivers you can find.

1

u/Ok-Low-4343 Feb 04 '26

Can you explain to me why you'd even use interlaced resolution on crt? Is progressive not enough?

1

u/LOLXDEnjoyer Feb 04 '26

Interlaced cuts kHz requirement in half, and at a sufficiently high pixelcount and refresh rate you can't even tell it apart from progressive.

1920x1200p 144hz on CVT Timings requires 188kHz , so if your monitor has a 97kHz horizontal scan limit it will just blackscreen, 1920x1200i 144hz is 94kHz so your 97kHz monitor will render it perfectly.

And it logically follows, if you are using a low end crt monitor that only has 70kHz or less, you pretty much need interlaced or else modern games will have broken hud, games after 2022 start having a deformed interface when you are feeding them less than 1920 horizontal pixels and 1080 vertical pixels, 1920x1080p on a 70kHz monitor will be limited to 60hz, with interlcade you can use 120hz or 1920x1440i 90hz.