EDID with a refresh rate of 1Hz

[FallenSnow]

Is it possible to set a timing profile with a refresh rate of 1Hz at 640x480?

Setting standard timings only allows a minimum of 60Hz.

[ToastyX]

You can define lower refresh rates with detailed resolutions, but Windows does not allow refresh rates below 5 Hz.

[FallenSnow]

(08-30-2022 04:02 AM)ToastyX Wrote:  You can define lower refresh rates with detailed resolutions, but Windows does not allow refresh rates below 5 Hz.

Interesting, I did not know that, I guess I'll have to make do with 5hz then. I've created a custom EDID in EEditGold 1.2.14 but it doesn't have an option for refresh rate, only pixel clock. Also linux's "drm_info" command doesn't seem to list the mode I created.
I've pasted the EDID I've created below. Do you know if it looks correct?

Code:

00,FF,FF,FF,FF,FF,FF,00,16,70,00,00,00,00,00,00,
00,20,01,04,00,00,00,00,02,00,00,00,00,00,00,00,
00,00,00,00,00,00,01,01,01,01,01,01,01,01,01,01,
01,01,01,01,01,01,21,00,80,14,20,E0,14,10,05,0A,
5A,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,07

[FallenSnow]

I think the issue is actually with how I've programmed the I2C response code since about half the time it detects the EDID.