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Custom EDID needed?
06-10-2014, 03:44 AM (Last edited: 06-10-2014, 04:36 AM by Mangix)
Post: #1
Custom EDID needed?
I have a 2560x1600 monitor which has an EDID that specifies 1080p and 1920x1200 as the max resolutions when connected through HDMI.

DisplayPort has the proper 2560x1600. The issue that I am having is that I want both the 1600p resolution and HDMI audio. I tried using the basic hdmi extension block but that is only limited to 2 channels and no bitstreaming.

Using the normal extension block limits me to 1920x1080/1200. Can someone modify my extension block so that it specifies 2560x1600?


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06-10-2014, 10:00 PM
Post: #2
RE: Custom EDID needed?
The attached EDID doesn't have the extension block information. Did you use GetEDID?

http://devgurus.amd.com/servlet/JiveServ...ID-1.2.zip
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06-11-2014, 04:16 AM
Post: #3
RE: Custom EDID needed?
I used CRU's export function. Oddly enough, include extension block was checked with no asterisk next to it.

I tried again and have two files this time. The original file was from my receiver being connected to my monitor(monitor connected directly makes no difference) but this time I connected it directly and use CRU's export function again. I also used moninfo to dump the real-time EDID which is 256 bytes.


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06-11-2014, 08:11 AM
Post: #4
RE: Custom EDID needed?
CRU can't export the monitor's EDID because it's not stored in the registry. CRU can only export extension blocks that have been imported through CRU or installed with an INF.

The monitor's EDID defines a 225 MHz pixel clock limit for HDMI, and AMD's driver listens to the HDMI pixel clock limit, which is why 2560x1600 isn't working.

The monitor's EDID only has 5.1 192 kHz audio: https://www.monitortests.com/hdmi-audio-5.1-192.dat

If you want bitstreaming, I need the full EDID with the receiver connected.
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06-11-2014, 11:04 PM
Post: #5
RE: Custom EDID needed?
Here it is


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06-12-2014, 01:09 AM
Post: #6
RE: Custom EDID needed?
Try importing this in CRU: https://www.monitortests.com/hdmi-bitstream.dat
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06-12-2014, 02:05 PM
Post: #7
RE: Custom EDID needed?
Worked brilliantly. Thank You!
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