To Mike Lindsey,
I have a setup that uses the same video sources. My only sources are Directv and Oppo 93, using HDMI to a M50v-3d inputs, and I use M50v HDMI-1 output to Runco DHD4 and HDMI up to the V11d projector. I just added an HDMI2 output to RF extender to a Sony monitor. Source switching to Oppo always has a little noisy on sync (video and audio glitches), and sometimes fails to sync but a power cycle would clear. This lack of sync was either no video or video colors are screwed but at least a power cycle would finally clear and sync correctly.
My rack cables are 1meter (Ultraviolet $100 wireworld) in length and then a 9meter wireworld (HDMI starlight $500), "http://www.wireworldcable.com/categories/hdmi_series6.html
" Anthem software upgrades did not solve the problem.
I did try using Runco DHD4 to do the HDMI switching and ran runco HDMI out to M50v for audio which worked better at switching than the M50v. This hookup never failed to sync. But I wanted the video overlay so I cabled my rack back to M50v for switching and the problems showed up again. Then I upgraded to the latest HDMI 1.4 - 3d board hoping this would help but it did not. The intermittent fail with Oppo got worse. The source switching from Sat to Oppo that would sometimes cause a sync fail whre a power cycle of the M50v now would not clear that fail. A switch back to the Sat (DVR) would also fail until I would power off the Oppo and then I could get Sat to sync some of the time.
A switch to Sat/DVR always synced faster and cleaner than a switch to Oppo (whose data volume was set higher). Directv is 1080i and Oppo is set to Source Direct. M50v out configs are at 1080p. Anthem suggested using M50v setting for the sources a Studio RGB vs YCBCR 4.2.2, and only using 8bit for color space (YCbCr 4.2.2.) with Deep Color OFF, setting in Oppo. Fails would get worse where more data is transmitted from Oppo.
The current workaround from Anthem was to switch to the source settings to use THROUGH. This was a little more stable but of course one does not get the nice video screen overlay for status, mode, menu etc. So I switched back and do not use THROUGH, to trying to get M50v to switch and get the video processing. I also did yet another software upgrade to version 3.09 which showed no improvement in sync but it did solve an intermittent case where volume would be too low on power up.
The wireworld cables are very stiff and this could results in a torque on them that could result in less than optimum contact resistance. I decided to try contact cleaner after about 2 years of the above problems. About 1 week ago I used DeoxIT and DeoxIT Gold and focused on all connections in the rack but did not get up in the huxhbox and do the 1 Runco connection. No complete fails in the last week. Switching still has some noise bursts (video and audio) that I have learned to live with. Switching times are about 6-7 seconds which is down from slower times at day 1 when I got the M50v and was using max data volumes.
So set your devices to output the least amount of data volume that your willing to live with especially Oppo output setting. Second, make sure the cables are very good, short, and are making good connection. Third, I also added a small fan to blow across the top of the M50v since the area seemed pretty warm one time when it locked up and would not sync even with a power cycle. I only have 1" of space above the M50v for air flow.
I am the queue for another software upgrade that I hope helps HDMI sync. Maybe someday a Anthem RS232 based HDMI trace function to help debug what and when there is an Anthem HDMI problem.