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EDID with a refresh rate of 1Hz
08-29-2022, 11:37 PM
Post: #1
EDID with a refresh rate of 1Hz
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.
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08-30-2022, 04:02 AM
Post: #2
RE: EDID with a refresh rate of 1Hz
You can define lower refresh rates with detailed resolutions, but Windows does not allow refresh rates below 5 Hz.
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08-30-2022, 05:17 AM
Post: #3
RE: EDID with a refresh rate of 1Hz
(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
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08-31-2022, 03:00 AM
Post: #4
RE: EDID with a refresh rate of 1Hz
I think the issue is actually with how I've programmed the I2C response code since about half the time it detects the EDID.
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