[mythtv-users] The Olympics has destroyed my video

[Jay Harbeston]

> On Feb 10, 2022, at 11:22 AM, Allen Edwards <allen.p.edwards at gmail.com> wrote:
> 
> My system dates back to my install of Mythbuntu 16 in 2018. With the help of many in this group, I got it working well. It is an AMD 2.8GHz 5400 with 6GB memory and a GeForce GTX750 Ti video card. I am driving one of two 1080 display which share a single output using a HDMI splitter.
> 
> I was using VDPAU with 2 CPU set and Deblocking filter checked.Primary deinterlacer is Advanced (2X,HW) and backup is 1X, HW.
> 
> When there is fast motion, like a speed skater or ice skater, the picture breaks up particularly around the athlete. This lasts for about 3 seconds and basically makes it unwatchable. I have had to switch to SLIM and with that I get artifacts I think are called tearing which annoy me but the wife is happy so that is where it is.
> 
> The artifacts are not in the source material and not due to the long cable to the projector as I can see it on the TV and the projector.
> 
> The Olympics are broadcast in 1080i. I had a lot of trouble setting this system up but it worked fine for 3+ years although most of our viewing is from 720p source (ABC).
> 
> I have tried most of the options and others either give worse tearing or still have the breakup.
> 
> I could use a bit of help. I hesitate to try the thing I have in mind which is to just switch to 720p for the displays. Seems a shame to take 1080i, convert it to 720p, then let the projector convert it to 4K but I don't know what else to do. It would be great to fix this before the Super Bowl.

Also, check to make sure your desktop environment is not using compositing. I had this problem when I forgot to turn off the compositor for the desktop. Also, if you are running a vnc server on the myth frontend box, it can also cause problems.

Another choice might also be bad video compression coming from the local station.

Regards