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.

[simon52min]

(09-30-2022 01:48 PM)ToastyX Wrote:  

(09-30-2022 05:52 AM)simon52min Wrote:  Could you guide me how to create a 2560* 1440@165Hz & 3440x1440@144Hz bin Files via CRU tool ? My video card is RTX3070ti.

What are you trying to do? You can add those resolutions in a DisplayID extension block and export a .bin file.

What i 'd like to do is connect a virtual display device through the hdmi interface of the 3070 graphics card, to create a virtual desktop of 2560 * 1440 @ 165Hz, or 3440 * 1441 @ 144Hz

[takla]

Can CRU edit the chromaticity coordinates?

I need it so I can clamp to sRGB within my AMD GPU driver settings (which reads this information). I want to replace the stored coordinates with my measured ones (because the default values are somewhat off)

[ToastyX]

(10-05-2022 11:45 PM)takla Wrote:  Can CRU edit the chromaticity coordinates?

No, but you can export a file and use an EDID editor to edit the values, and then import it back into CRU with "Import complete EDID" enabled. You can use any editor except Phoenix: https://www.monitortests.com/blog/list-of-edid-editors/

I do want to add editing the color coordinates to CRU 2.0.

[ToastyX]

(10-05-2022 09:08 AM)simon52min Wrote:  What i 'd like to do is connect a virtual display device through the hdmi interface of the 3070 graphics card, to create a virtual desktop of 2560 * 1440 @ 165Hz, or 3440 * 1441 @ 144Hz

You need HDMI 2.1 with FRL for those resolutions. All the emulators I know only do HDMI 2.0.

[ToastyX]

(10-04-2022 07:54 PM)Peppe90 Wrote:  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?

Yes, but NVIDIA stores its settings in the registry.

[Peppe90]

(10-06-2022 02:21 PM)ToastyX Wrote:  Yes, but NVIDIA stores its settings in the registry.

Ok, maybe tommorrow I'll get some time to try it.

One last thing. What about polarity? With automatic CRT I get:

720x576i/720x480i: horizontal - / Vertical +
1440x480i: - / -

I'm using the EDID extracted the from the HD CRT (Philips 32PW9551/12) as a base. It has PAL/NTSC res. with - / - (they're not interlaced btw) and 720p/1080i are + / +

The UMSA have a jumper for setting positive or negative sync. It's just one jumper though, I don't know if it's about horizontal or vertical sync.

[ToastyX]

(10-06-2022 07:18 PM)Peppe90 Wrote:  One last thing. What about polarity? With automatic CRT I get:

720x576i/720x480i: horizontal - / Vertical +
1440x480i: - / -

1440x480i/576i is normally -/-. You have to enter 1440 for interlaced resolutions. It doesn't do anything special for 720.

[takla]

(10-06-2022 02:21 PM)ToastyX Wrote:  

(10-05-2022 11:45 PM)takla Wrote:  Can CRU edit the chromaticity coordinates?

No, but you can export a file and use an EDID editor to edit the values, and then import it back into CRU with "Import complete EDID" enabled. You can use any editor except Phoenix: https://www.monitortests.com/blog/list-of-edid-editors/

I do want to add editing the color coordinates to CRU 2.0.

Thanks. I'll give it a try. I'm thrilled for CRU 2.0

[simon52min]

(10-06-2022 02:21 PM)ToastyX Wrote:  

(10-05-2022 09:08 AM)simon52min Wrote:  What i 'd like to do is connect a virtual display device through the hdmi interface of the 3070 graphics card, to create a virtual desktop of 2560 * 1440 @ 165Hz, or 3440 * 1441 @ 144Hz

You need HDMI 2.1 with FRL for those resolutions. All the emulators I know only do HDMI 2.0.

Can you tell me in detail what is the difference between the HDMI 2.1 and the HDMI2.0 emulator? I had added CTA-861 block via cru tool, and add data block hdmi2.1 support. Is there a parameter that is not set correctly?