Custom Resolution Utility (CRU)

[Peppe90]

(10-03-2022 11:31 PM)ToastyX Wrote:  It would be better to load the modified EDID using the NVIDIA control panel because that's more direct. Too bad they only offer that for Quadro cards.

I agree, that should be a obvious feature on any GPU.
So you're saying that's better to edit the EDID file when it is not mounted, then when the edit is done I'll mount it with Nvidia CP. If something's not right, I'll unmount it, make other modifications and so on.
This way I'll also edit only the actual EDID txt, no modifications will be made on registry, right?

(10-03-2022 11:31 PM)ToastyX Wrote:  CRU should only have one active entry for each connected monitor. Inactive entries are leftovers in the registry from previous connections or different drivers. Keep in mind the registry only stores the first block, so CRU can't read extension blocks for inactive entries. If you see a "Default extension block" in the extension block list, the exported file won't have the extension block data. Each type of connection can have a different EDID. VGA will say it's analog. DVI will say it's digital. HDMI uses EDID 1.3 and has a CTA-861 extension block with an HDMI data block. DisplayPort normally uses EDID 1.4. The EDID for each port on the monitor normally does not change by itself, although some monitors might have certain settings that can change the EDID. Keep in mind any changes you make in CRU will appear in the exported file. If you didn't make any changes and the monitor is connected and recognized as active, then exporting a file will save the original unmodified EDID.

Thank you for the infos, things are much more clear now. I didn't done any modification with CRU yet. I only exported original EDIDS.

(10-03-2022 11:31 PM)ToastyX Wrote:  720x480i/576i is normally double-clocked, but there's no way to specify a double-clocked resolution in the EDID. 1440x480i/576i produces a similar signal that the TV can handle. The EDID stores the number of lines per field, so 240 for 480i and 288 for 576i.

I see. For now what matters is to feed the UMSA/CRT Tv with a resolution on which i can use Windows, then I'll do all other needed testings.

I'd like to play PC games sometimes on the CRT Tv, for that reason I wanted to use a SD resolution (the K2200 is equivalent to the 750Ti, I think it can max out even Cyberpunk 2077 with good performance at 720x480i ), 1440x480i is more demanding I think.

I could also try the default 720x576i resolution from the LCD Tv, perhaps it'll work.
I'll try using the LCD Tv EDID as a base. I'll edit the EDID txt with CRU adding your suggested resolution as native, then mount it with nvidia CP.