brightpipe wrote: Fri Aug 11, 2023 22:56
I have the same issue so I'll throw in some info that hopefully will help troubleshoot.
For me the first time I saw it was at an event at the end of November last year.
I actually had 2 deployments at that show.
Both PCs were Intel NUC 12 Extreme with i7-12700, 64GB RAM, with W10 Pro. But different video cards.
One had a Quadro RTX4000 - this was driving a 9216x1728 wall via 3 DP outs/slices into a Novastar H5.
The other had an RTX 3070 driving 2 walls - 1 2688x576 and 1 768x960 via a single MCTRL4K (don't remember if I used HDMI or DP, but it was a direct connection.
Systems were identical except the video cards (running latest Resolume and appropriate video card driver at that time) We started having the flickering random flickering on the system with the 3070 after about a day of running. Would be fine for hours, then randomly start flickering for a few minutes, then stop again for hours.
Swapped input cables, ports on the computer, eventually the whole computer. We suspected it may be dirty power or something. Or a short in a cable. But trying to move cables around, stomp on under-carpet power lines, etc, and nothing we did could get it to happen.
Not sure that it I can narrow it down to the 3070 being the issue though.
I used the same PC with the 3070 at 3 other events after that and didn't see any flickering, different setups but all used multiple outputs into 1 or more Novastar processor. H5, MCRTL R5, VX600
About 3 months ago I did another large wall - 8832x960. Same computer with the 3070 into the H5 via 2 DP cables. Started having the same flickering again. Tried a bunch of stuff to fix it. Swapped DP cables, and data cables feeding the wall. Went to a backup computer. Changed the split between the 2 outputs from 50/50 to 70/30. Reoriented the slices to use a single 4416x1920 output instead of 2 8832x960 outs.
Still didn't fix the issue.
So I ended up cutting the video in half and positioning one half over the other and encoding it that way. Then redid the mapping in Novastar to move them back - left and right instead of top/bottom. Played it in MPC-HC and didn't have any more flickering issues.
I always run everything at 60Hz, but don't genlock or use any other synchronization. But I don't think that should be needed as I'm always driving everything from 1 source PC into 1 processor. I've had the issue both with videos encoded at 60fps and with ones encoded at 29.97fps.
I do leave Resolume's composition frame rate set to Auto. Should I manually set that to 60?
My panels are Unilumin UPAD III and IV. I've also used it with DesignProLED LED spheres using Novastar and Mooncell processors - but in those cases I never saw issues. I did have UPAD III on different slice/output on the same PC.
I've used the UPADS 3 and 4's a lot this year along with the H series, so I know the panels and processing is good.
I've also haven't had any flickering issues with Resolume while using that hardware.
We had a 4 day studio shoot with this setup and All the gear was left on for 4 days without issues.
The only thing that comes to mind was reading 'NUC' and wondering if it's power related? PSU underpowered? System(BIOS)/Windows power settings? How are your thermals?
I have 1060, 2070, 2080, 2080ti, 3070, 3080, 3080ti, 4080, A5000 machines, All of which have been up to date on drivers when they are first released and I've yet to see this happen. We've had 1 festival this year use those Upad/H series setups and had about 4 guests a day on that stage (I was House VJ as well) and no one was having issues either, This would have been around the time of 7.13 I believe.
I'm curious, would you be able to use some monitoring software like HWinfo or CPU/GPU-z and see what your voltage and thermals are when using Resolume and all of these outputs, vs using something like MPC-HC or VLC. I don't think your issue is LED related, and I don't think it's Resolume related as thousands of users aren't screaming bloody murder. I've used your setup (Minus your PC) and everything is stable. So I feel it's coming back to power? Very strange indeed!
On a side note, On the H series, under the HDMI settings you can force full RGB range. I'm not sure if that's available for DP as I haven't tried it on DP before, but I know if you set your nvidia settings to Full RGB And have the H series force it, you will extend your range past 0 and 255 and the panels don't like that and will start to give off that green (or in some panels case red) confetti/sparkles. It doesn't cause the entire wall to
flicker but your panels wont be happy lol. Just something else to keep in mind when using the H series and info to pass along to your guests if they tie in.
Do you like outlines? Easy Outliner on Juicebar 
).
