Biskit Posted August 3, 2017 Share Posted August 3, 2017 Hi Guys,I'll try to be brief with this.. We have a projector (Panasonic D5000 XGA) which we use with rear projection screen. We have a dedicated, installed, CAT5 link from our control position to the projector, and have been using a VGA-over-CAT5 sender-receiver set (unbranded, but of the active type). We have started getting issues with people coming with laptops with HDMI only, and although we have HDMI-VGA adapters in stock, we often get fuzzy/jittering/dim picture when used via the CAT5 link, and on occasions it has refused to work at all, so the dreaded "very long VGA lead" has had to be hastily run in... far from ideal (but gets us through the show). I'm after a unit which takes both HDMI and VGA (possibly other video formats too?) which can send over my existing CAT5 cable to give a VGA input to the projector. The projector doesn't have HDMI input, although it does have DVI-D which may be an alternative? Google brings up many units with a vast price range so I'm after any real-life recommendations please... it's for a professional venue so quality and reliability is essential, though only the most basic functionality is required (in fact, the simpler the better - needs to be just plug and play). Any suggestions?Many thanks E2A - with HDMI we'd also need a means of extracting the audio at the control position ideally. Link to comment Share on other sites More sharing options...
ninjadingle Posted August 4, 2017 Share Posted August 4, 2017 I think your best bet would probably be a scaling unit with built in output. Extron make the IN1608 which has 2 x VGA, 4 HDMI and 2 DTP inputs (their version of HDBaseT). The VGA can also be configured for composite inputs. This then outputs to an RJ45 which can be either DTP or HDBaseT. It also has 2 HDMI outputs, useful for booth monitors. This model also has audio outputs, which would take care of your audio de-embedding. At the other end you'll need a receiver - again Extron make the appropriate box - simple DVI-D link to your projector, and you won't need a PSU at the projector end. Other manufacturers will have their versions - we're an Extron house so only commenting on what I know. Link to comment Share on other sites More sharing options...
Biskit Posted August 9, 2017 Author Share Posted August 9, 2017 Many thanks that's really useful - I'll look into it and other equivalent options. Link to comment Share on other sites More sharing options...
Biskit Posted August 11, 2017 Author Share Posted August 11, 2017 Just been doing a bit of looking into this and have come across some products (notably those taking HDMI and outputting VGA) which stipulate 'only for non-HDCP compliant content'. What does this mean? I understand HDCP relates to copy protection of some digital video content, but what in practice does this mean in terms of venue AV? I don't want to end up in a situation where everything seems to be working but the screen suddenly goes black when the presenter hits play on a video! Cheers E2A this kind of thing... (looking at options staying with VGA in to projector) http://cpc.farnell.com/pro-signal/psg08108/converter-hdmi-to-rgb-vga/dp/AV17444?MER=sy-me-pd-mi-alte Link to comment Share on other sites More sharing options...
Shez Posted August 11, 2017 Share Posted August 11, 2017 If an HDCP source device can't see compliant devices throughout the rest of the signal chain, it won't output anything. I believe some macs often won't output at all, regardless of the provenance of the content being displayed, without a compliant signal chain. Link to comment Share on other sites More sharing options...
Biskit Posted August 11, 2017 Author Share Posted August 11, 2017 If an HDCP source device can't see compliant devices throughout the rest of the signal chain, it won't output anything. I believe some macs often won't output at all, regardless of the provenance of the content being displayed, without a compliant signal chain.Ok thanks for the info. Are there (probably more expensive) versions of the type of product I linked to which are HDCP compliant? Or is it the conversion to VGA (and hence, I suppose, providing a route to piracy of the content) the problem in itself, in which case however I go about it, I'm likely to have an issue putting content from some HDMI sources on a VGA projector input? If this is the case, will I have better luck trying to utilise my projector's DVI-D input? Link to comment Share on other sites More sharing options...
Stuart91 Posted August 11, 2017 Share Posted August 11, 2017 I believe some macs often won't output at all, regardless of the provenance of the content being displayed, without a compliant signal chain. One other "gotcha" that I discovered (the hard way, as usual) is that Macs won't play HDCP content out of a VGA output. Notably movies bought on iTunes etc. Link to comment Share on other sites More sharing options...
timsabre Posted August 12, 2017 Share Posted August 12, 2017 If a device is hdcp compliant it is not allowed to output protected content to any form of analog video, including vga. Link to comment Share on other sites More sharing options...
Joe Fernand Posted August 13, 2017 Share Posted August 13, 2017 HDFury 2 is the most reliable/customisable HDMI to VGA/YUV Converter - you can set it to Output RGBHV or YUV, it also includes 3.5mm Stereo Out/Optical Out audio socket. We keep them as a stock item alongside the newer UHD 4K HDFury products. Joe Link to comment Share on other sites More sharing options...
Biskit Posted August 16, 2017 Author Share Posted August 16, 2017 Thanks for the comments, it seems it's even more of a minefield than I thought! Link to comment Share on other sites More sharing options...
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