Posts by lobbie1978

Little update on this issue:"

Next to the HDR playback issue, I also experienced dropping signal to the projector. I didn't linked those two together, but I managed to identify the cause of the dropping signal (something to do with the HDMI A/B output) and when that was fixed, I have no issues anymore with HDR. It works now.

In detail:

During playback on my projector, the signal dropped many times. Sometimes >10 times during a movie.

I found out that when I set my receiver to output to the projector only (HDMI Out B instead of both A/B) that issue is solved (don't know why, I never had any issues with this, but whatever).

Since I started to set the HDMI output to the projector only, the HDR playback works as expected. No more issues there. Weird.

Now I need to find out why the HDMI Out A/B causes this. I never had this issue before, but I think it has something to do with the Sony TV that is connected to HDMI A. Maybe a setting is causing this, not sure. Any suggestions are very much appreciated.

So anyway, the HDR issue seemed to be caused by the receiver/tv and not by the Rpi/LE.

So you are suggesting to connect the Pi directly to the Projector, then play HDR content and capture the EDID?

I did a clean install of LE11 this afternoon hoping that it would solve things, but it didn't. I did find that pulling the powercord from the AVR when the projector and LE were running and then reconnecting the AVR again made HDR playback work again.

So somehow it seems to me that the AVR is the culprit here. Very strange, because it fully supports HDR 10 passthrough and it has worked flawlessly in the past... It even supports 4k/60p which I'm not using.

Oof, that looks like some advanced stuff. Don't know if I can manage that. I do read all about resolutions, but the issue is not resolution, that's all fine. It's HDR that doesn't work.

So yesterday I hardcoded EDID by SSH'ing into the Pi while a HDR movie was playing on my projector (TV was off) and programming EDID with getedid create

It did not work

When I restarted the projector, the AVR and LE, the HDR availability was gone again. I am so confused now.

Interestingly enough, this issue never came up with LE10. I had to update to LE11 nightly, because KODI on my PC automatically updated to the latest version, which altered my database which is running on my NAS.

Any ideas?

Quote from chewitt

The behaviour is all about EDID data and the properties exposed to Kodi. Kodi only reads this data once at startup, so if the projector is not on when Kodi starts, the AVR does not show this to Kodi and thus HDR10 is not availble. The normal way of dealing with that is to hardcode the EDID data with "getedid create" so the Pi board always believes the AVR/TV to be connected. The spanner in that plan is you have two HDMI outputs and they aren't equal. Perhaps hardcode the Projector EDID and avoid playing HDR media on the TV (which you probably don't do).

Thanks chewitt! What would happen if I play HDR media on the TV? Wouldn't the TV just ignore the HDR signal and just play the content in UHD without HDR?

Hi guys,

An issue popped up yesterday and I wonder if it can be solved.

I'm running the latest Nightly build of LE11 on my Rpi4.

My Rpi4 with LE11 nightly is connected to my Sony AVR which has two HDMI outputs; one is connected to my Sony (non-HDR) UHD TV, the other is connected to my Optoma UHD HDR10 projector.

When I turn on my Projector AFTER turning on my AVR, sometimes the projector is not receiving HDR for some reason played by LE. HDR is greyed-out. If I turn the devices on the other way around, it works normally.

I wonder if this has something to do with EDID?

Any idea's?

Cheers!

Rob

Hi guys, hi chewitt,

It turned out the issue was due to my AVR. It had to do with the HDMI AMP setting which controls if the HDMI input routs audio to only the AMP or AMP + TV. The latter made LE cause the issue and was set for some reason. Don't know why.

After setting it back to AMP, playback worked again.

Hi LE crew,

Since updating to LE11 nightly, most of my HDR10 files aren't playing anymore on my HDR Projector. When I start the movie, the cogwheel keeps spinning and nothing happens. The Kodi remote says it's playing though. Weird...

Strangely, when I turn off the projector and play the file on my (older) non-HDR Sony TV, the files play without issues. So it must be something with HDR then.

Any suggestions? I already tried fiddling with the whitelist, but to no success.

I can provide a log, but I never done that so I need to figure out how to generate it.

Cheers,

Rob

Quote from lobbie1978

Updated from 10 stable to 11 nightly on my Rpi4. Runs great. Had to delete all entries in the Whitelist though, as some 4k files played as 1080p. Had no issues after. GUI is set @1080p/60.

I spoke too soon. Since updating to LE11 nightly, most of my HDR10 files aren't playing anymore on my HDR Projector. When I start the movie, the cogwheel keeps spinning and nothing happens. The Kodi remote says it's playing though. Weird...

Strangely, when I turn off the projector and play the file on my (older) non-HDR Sony TV, the files play without issues. So it must be something with HDR then.

Any suggestions? I already tried fiddling with the whitelist, but to no success.

Updated from 10 stable to 11 nightly on my Rpi4. Runs great. Had to delete all entries in the Whitelist though, as some 4k files played as 1080p. Had no issues after. GUI is set @1080p/60.

Quote from mglae

You can work around general audio delays via advancedsettings.xml:

Code: /storage/.kodi/userdata/advancedsettings.xml

<advancedsettings>
  <video>
    <latency>
      <delay>+150</delay>
    </latency>
  </video>
</advancedsettings>

Restart kodi using command systemctl restart kodi

This worked. However, it doesn't answer the question as to why the delay is happening in the 1st place. Maybe I should do a clean install sometime soon.

Anyway, thanks for this.

I have (almost) the same issue. After updating to 10.0.2, a couple of 4K files simply won't play anymore whereas with 10.0.1 they played flawlessly. Don't know what changed, seems like a major bug to me.

Updated to 10.0.2. Audio delay still there.

Okay, so I updated to LE10.0.2 and played one movie. Which played fine except for the audio delay. Tried playing another one and the system just freezed up. Did a reboot. Same thing. Movies I could play before don't play. The output switches to 2160p and the cogwheel just keeps spinning into eternity... 😑

Quote from maxi

hi,

Clean install or update?

Will do an upgrade first. Downloading the new build now.

Tonight I will install the latest LE build 10.0.2 and test if the audio delay has been resolved on my RPi4.

Quote from martux69

One more question: In an older forum entry relating to LE7 I found the hint to disable "sync playback to display". May it help for LE10 also? Where can I find this option in the menu?

Isn't that option meant for syncing the refresh rate of the video to the display refresh rate? Will that affect audio as well?

Quote from chewitt

Settings > Playback > Sync Playback to Display (should be off by default, and we'd recommend it to be off so that Kodi uses the media clock)

Thanks! I'll give it a shot and report back.

Quote from mglae

You can work around general audio delays via advancedsettings.xml:

Code: /storage/.kodi/userdata/advancedsettings.xml

<advancedsettings>
  <video>
    <latency>
      <delay>+150</delay>
    </latency>
  </video>
</advancedsettings>

Restart kodi using command systemctl restart kodi

That's awesome, I'll try that. Thank you!

Quote from popcornmix

Does the delay still occur if you connect directly to TV bypassing the AVR?

That's not possible atm. I have no options to connect my 4k projector directly to my Rpi4 since the Rpi4 has mini HDMI. I don't have an adapter for this unfortunately.

Quote from holymouse

Ok I need to retract my last comment. It seems to be, that audio is delayed no matter which TV mode is used. I think every Dolby track (AC3 and E-AC3) is 150ms too late. With DTS I am not sure. Definitively not related if 50p or 24p.

Maybe someone could crosscheck this. Thank you.

Jep, 150ms seems about right.

I have my Rpi4 connected to my AVR and the AVR is connected to my 1080p TV and my 4k projector.

I have the Kodi resolution set @ 1080p/24 and whitelisted the resolutions my projector supports.

When viewing 4k content, the resolution is changed from 1080 to 4k when starting a movie.

The audio delay occurs with all my content.