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Author Topic: AP20 remote controll - VNC black screen Michal Matys Film Handler Posts: 70 From: Prague, Czech Republic Registered: Nov 2014 posted 04-05-2016 01:23 PM                    Hi guys, I have a question. I need to connect remotely via VNC to our AP20, but for some reason, when I use real VNC on my win 8 it connects but shows black screen only. I had to download tightVNC and through that its working fine. When I tried that today from my MAC, with the only VNC app i found availible, the black screen issue is still the same. Anyone have idea what to change in preferences, what could cause this issue? Thanks for all answers. Michal  |  IP: Logged Jay Wyatt Film Handler Posts: 33 From: Los Angeles, CA Registered: Mar 2015 posted 04-05-2016 01:32 PM                    Perhaps the unit is in the display 'sleep' mode. I'm not sure if VNC client also shows a black screen when the unit sleeps but that could be it. Hit some arrow keys or manually touch the touch screen to make sure its active.  |  IP: Logged Carsten Kurz Film God Posts: 4340 From: Cologne, NRW, Germany Registered: Aug 2009 posted 04-05-2016 01:50 PM                     VNC has loads of different options for screen content transmission, aimed at line load/compression. The only option on the AP20 side is 'Hex Tile encoding' in 'Access Control'. If that doesn't make it work, you have to try different VNC clients and client settings. I always found one that works. Also, keep your AP20 on current software. - Carsten  |  IP: Logged Leo Enticknap Film God Posts: 7474 From: Loma Linda, CA Registered: Jul 2000 posted 04-05-2016 06:20 PM                        As Carsten says, the AP20's built-in VNC server won't work with some VNC clients. I tried two or three before finding one that worked OK, namely Tight VNC.  |  IP: Logged Mattias Mattsson Film Handler Posts: 90 From: Göteborg, Sweden Registered: May 2007 posted 04-06-2016 04:10 PM                     I think the problem is that the AP20 does not handle the part of the VNC protocol that lower the image quality if the connection is slow. For example, if using RealVNC you have to configure it with "Picture Quality" set to high.  |  IP: Logged Leo Enticknap Film God Posts: 7474 From: Loma Linda, CA Registered: Jul 2000 posted 04-06-2016 04:33 PM                        That makes sense. Whenever our network connection goes slow (usually if the DCP server is pulling a DCP from our NAS box) while I have an AP20 VNC window open on the operating laptop, the display will freeze for a few seconds, and then Tight VNC will say "Connection lost - go f*** yourself" (not a verbatim quote, but you get the idea).  |  IP: Logged Marcel Birgelen Film God Posts: 3357 From: Maastricht, Limburg, Netherlands Registered: Feb 2012 posted 04-06-2016 04:39 PM                     It works for me with RealVNC Viewer and if I disable the Adapt to Network Speed option and the Encryption set to "Prefer off". Maybe Datasat could spend some time on fixing their VNC server in a future release as it is indeed quite a buggy thing. I guess they disabled some of the features as not to impact the CPU beyond breaking point during playback. So if it isn't possible because of this, at least give us a sheet with supported clients and configuration options.  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 04-06-2016 05:01 PM                     I use UltraVNC and it's always worked for me but the AP20 won't like two connections simultaneously - the viewers will keep disconnecting if two computers are connecting at the same time.  |  IP: Logged Alan Gilbertson Expert Film Handler Posts: 148 From: Carpentersville Il 60110 Registered: Nov 1999 posted 04-12-2016 07:03 PM                        Ive had the same problem and the problem is the version of VNC. I believe i found the color setting in VNC and it needs to be set to full i cant remember what the default is but once i went to full all was ok. Or see if you can find version 4.5.1  |  IP: Logged

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