I've instantiated a HDMI RX interface. it only can receive standard 1080P and 4K format. for a special 2K format(resolution 2560*1080), it cannot be parsed. Any different settings for this special resolution or it's just the feature?

Hi,

I checked this 2560x1080p resolution. It's ultra wide screen format 21:9 but is supported by HDMI

• https://en.wikipedia.org/wiki/21:9_aspect_ratio

Typically blank screen/no output on monitor is due to insufficient HDMI bandwidth

• HDMI 2.0 support max BW of 14.4Gb/s
• You can use below BW calculator to estimate the required HDMI BW to ensure it's less than 14.4Gb/s
• https://k.kramerav.com/support/bwcalculator.asp
• Key in Total horizontal pixel = 3000, Total vertical pixel = 1100
• Then you can play around with the colour depth setting and refresh rate setting. Keep it low
• Try out the actual experiment in hardware to see if it helps by reducing bit per colour (disable/turn off deep colour setting) and reduce refresh rate on your GPU graphic card

The other thing is may I know how you convert the monitor EDID file into the Quartus hex file ?

• Do you still have the original EDID hex file dump from monitor so that I can verify using below EDID reader ?
• http://www.edidreader.com/

Lastly I don't have ultra wide screen monitor to help you validate this special video resolution.

• Unless you can share with me your full Quartus design and explain your system setup to me then only I can explore whether I have the similar setup to help you test it

Thanks.

Regards,

dlim