u/rafety58

After spending to much time and following guides that where outdated or overly complicated, I wanted to make a simple to follow tutorial on how to make custom resolutions via EDID overrides.

To make this work you will use Custom resolution helper (built into Bazzite) to dump the EDID file and use Custom Resolution Utility to edit it via steam using the proton compatibility layer to run it.

Custom Resolution Utility download link. Download

Step 1: Open terminal and run Custom resolution helper by typing crh

https://preview.redd.it/supx92aro72h1.png?width=909&format=png&auto=webp&s=e00e623b50b30db3974a57c037e833ed79098329

Step 2: Select Dump-EDID

https://preview.redd.it/mrsaiqy1p72h1.png?width=1039&format=png&auto=webp&s=78d0765b638183548744d8b249fcbaebaf6d7c64

Step 3: Choose the correct display "If you do not know what input to select you can run kscreen-doctor --outputs to find out"

https://preview.redd.it/fjakfx6kp72h1.png?width=1039&format=png&auto=webp&s=b1fd9cca6767831d41f8122f1207408967854275

Step 4: Press enter to continue, the EDID file will be located at /tmp/crh/edid.bin

https://preview.redd.it/3p8lnymwp72h1.png?width=1039&format=png&auto=webp&s=ccca403394b1c3bac06679a0f847bd0009ca99c3

Step 5: Add CRU to steam as a non steam game and enable proton under compatibility

https://preview.redd.it/apldetzlq72h1.png?width=700&format=png&auto=webp&s=6d6543b24bceb014eae943c767806f47d3c3032b

https://preview.redd.it/xuqrvm1nq72h1.png?width=842&format=png&auto=webp&s=c392a82d40c614917c4409dc798d2224e97a2b64

Step 6: Run CRU and import the EDID file, after that add your new resolution under detailed resolutions tab. Once done choose export to save the new EDID. The one in the example picture is for my Toshiba HD CRT so I can run it at 480P 16:9

https://preview.redd.it/mpmr4jx5r72h1.png?width=890&format=png&auto=webp&s=cda5d2a61b4b22a902736ad20b0ab56849249e3b

Step 7: Open terminal and run Custom resolution helper by typing crh. This time we will be selecting Add-EDID

https://preview.redd.it/v2qdmhyur72h1.png?width=1039&format=png&auto=webp&s=79d5cde7e1478e24c924941b0daf8a0477f0e949

Step 8: Put the new EDID file into the directory that CRH has created at /tmp/crh/edited/

https://preview.redd.it/jmzz59ags72h1.png?width=1039&format=png&auto=webp&s=9052ea48eb9bf2d33ea3f18a5f190800dfd63f0e

Step 9" Confirm the correct monitor

https://preview.redd.it/26odn69ls72h1.png?width=1039&format=png&auto=webp&s=b1982960258b07d6765134e2b7b9785f3209b21a

Step 10" Let it run then reboot to test the new custom resolution

https://preview.redd.it/dfyeyxjss72h1.png?width=1039&format=png&auto=webp&s=57e8ec2ece8b8c689847f229cfcc6c489832384e

So I decided to give windows another try because I have a HD CRT tv that I was trying to get running at 540P.

I spent 3 days working on it in Bazzite just to have my settings in k-screen doctor or custom resolution helper be rounded on me so the tv wouldn't sync. I also spent an entire day learning about EDID over rides for that to not work as well.

So I do what anyone with sunk cost fallacy would do, I spend the next 2 days converting my BTRFS drives over to NTFS and install windows so I can use Custom resolution utility.

After getting the tv set up in windows I found out that my Toshiba hd CRT will only accept a 540p signal in a 1080i wrapper, so when you feed the tv a 540p signal I would get horrible strobing on the tv and of course amd drivers have no support for interlaced signals.

So in short I wasted the better part of a week and I am now converting my drives back to btrfs.

The good news is bazzite does support 720x480 and that looks sharp as hell scaled up to 540P by the tv. I find 720p mode useless since it scales it to 1080i and I can't handle the flicker.

Sorry if I'm rambling low on sleep and fueled by coffee right now.