P4 panel build

HI guys,
im having some problems with my screen im trying to solve.
It 'feels' like a refresh rate/latency issue and im getting screen tearing when annimations move fast, slow static images are mostly fine.
I am useing 2 colourlight cards, and have the panels wired up 4 in a row, each row on a new port.

here are my settings: (note i have tried lower DCLK settings, and data group 32)
on the colourlight cards, i have Firmware: E320_PCB6.0_PWM_FPGA11.03_20240507_FDFP3.0 (from buts)
5fe257b2-1a5e-4895-962f-6591594cd979.jpg
748c5dda-75c2-46a8-b76d-ad699d5750e5.jpg


here is a video of the problem:


 
This looks exactly like the issue that @Indigogyre is having with v11 firmware. V13 will fix this, but is then not compatible with FPP. (I am currently working thru it)
 
warsome said:
HI guys,
im having some problems with my screen im trying to solve.
It 'feels' like a refresh rate/latency issue and im getting screen tearing when annimations move fast, slow static images are mostly fine.
I am useing 2 colourlight cards, and have the panels wired up 4 in a row, each row on a new port.

here are my settings: (note i have tried lower DCLK settings, and data group 32)
on the colourlight cards, i have Firmware: E320_PCB6.0_PWM_FPGA11.03_20240507_FDFP3.0 (from buts)
View attachment 27294
View attachment 27295


here is a video of the problem:


Click to expand...


So, how many panels is the matrix? 320 x 80 would seem to indicate 4 wide by 2 high but I do not think that is right. Normally a P4 panel is 80 pixels by 40 pixels and it looks like that matrix might be 4 panels wide by 3 panels high.

The first thing I noticed is that the module is listed as 80pixels wide by 20 pixels tall. Looking at the pdf from the manufacturer they do say the panel is 80x40. Did you reach out to the vendor to see if they can provide a configuration file for the P4 panels?
 
Indigogyre said:
The first thing I noticed is that the module is listed as 80pixels wide by 20 pixels tall.
Click to expand...
This is an interesting one, I have the same with my 48x48 panels, they appear as 48x24 in LEDVision. I think it's related to the internal structure inside the panel.
 
form memory i have a similar problem when using my laptop but not my desktop; also if you are using FPP as a remote, i found i needed to turn off sending DPP packets (I think that is the correct name ). If you like, i may be able to chat tonight on

you could also try adjusting the clock (DLCK ) frequency
 
i had tried the highest and lowerst setttigns that worked for the DLCK frequency, last night i went and tried every setting combination and think iv got it rather stable now with DCLK set to 20 and data group set to 32.

its not perfect but its significantly better than it was.,

the vendor recommended a colorlight A60 and then use HDMI. Seems excessive for what we use the screens for, i guess its just the complication of the higher rez and refresh rate of the P4 panels.
 
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