Is HDMI->SDI converter compatible with computer displays?
by Jason J Rodriguez
on
Jul 22, 2008 at 2:06:47 pm
Hello,
I was curious, has the HDMI to SDI converter been tested with normal computer displays, such as DVI outputs from NVidia or ATI or Intel embedded GPU's?
Also does the converter have a build-in frame-buffer for re-clocking, or does the input over the HDMI port have to be a SMPTE timing, or extremely close to SMPTE timing (i.e., computer monitors even at 60Hz use the more flexible VESA timing standards, which means many PLL's can't lock onto the signal from a normal DVI monitor if all they are looking for is a SMPTE signal)?
Re: Is HDMI->SDI converter compatible with computer displays? by Callum McLay on Jul 25, 2008 at 1:37:55 pm
Hi Jason
While i would not say there is any official compatibility with DVI outputs from graphics cards, we have been playing around with this here at the UK office, and it does work.
If you connect via DVI - HDMI adapter to your second DVI out, and to the HDMI to SDI mini convertor (you may need to restart to connect the HDMI devices), if you go to your display settings, you are able to see the mini convertor as a second display.
If you go into the advanced settings>>adapter, and select "Display all modes", the Mini Convertor will present your card with a full list of the supported SMTP resolutions. So I would imagine the EDID is forcing the VESA standards into something compatible with the mini convertor.
As far as I've seen the output this way has been pretty good at HD resolutions. (SD desktops never look as good because obviously they are smaller than your normal desktop!)
Callum McLay
Technical Support Consultant
Blackmagic Design EMEA
