This must be… what… the fifth beer that I owe you now? 
1 Like
You owe me at least a fifth, maybe two at this point 
(… only the good stuff. Not that $5/gallon stuff)
3 Likes
I’m fairly certain - 4k HDR10 → 1080p and my CPU is only just touching 10%…
I’m always happy to be corrected if I’m wrong though!
1 Like
I’ll contribute to that quest!
I just started following this issue now (just got my Alder Lake i9).
So on Ubuntu 22.04.1 I just need to wait for Plex 1.29.1 and the problem will be resolved? Or do I need to update the kernel (I’m still on the default 5.15) and/or ICR?
My recommendation is to wait
I’ve already said too much but it bothers me to see everyone trying to make something work, spending so much time, when I know what’s coming.
All I can say is:
- On a CometLake NUC (NUC10i5-FNK)
[chuck@NUC10i5FNK ~.186]$ uname -a
Linux NUC10i5FNK 5.15.0-43-generic #46~20.04.1-Ubuntu SMP Thu Jul 14 15:20:17 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
[chuck@NUC10i5FNK ~.187]$
- Ubuntu 20.04 (baseline OS)
[chuck@NUC10i5FNK ~.198]$ cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04.4 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.4 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal
[chuck@NUC10i5FNK ~.199]$
-
Loaded the new PMS.
-
Selected the 5 minute sample of my BluRay rip
-
Hit play
That’s it. I can’t tell you any more than I know.
2 Likes
Is that DV? Nice. Thank you
It’s a Profile 7 DV+HDR (the fallback layer) video. That’s why it shows both DoVi & HDR10 in the tag.
DoVi profile 5 (streaming only) videos cannot be transcoded & color mapped because profile 5 contains no fallback layer for the tone mapping back into H.264 output .
Please be careful what you guess at. I can’t answer any more than what I’ve shown.
Got you!
Oh wow. That actually explains a lot. I never knew this. This should be put in the FAQ in the hardware transcoding knowledge base article.
Doesn’t look like these changes are in the 1.29.1 beta, is 1.29.1 still the target?
Folks.
PMS 1.29.1 is here.
Now I can tell you:
- HDR tone mapping is built into PMS
- Intel Compute Runtime packages are NO LONGER NEEDED – You are free to remove them . I have removed all CPU detection and ICR management from the package itself.
This has been tested and confirmed on all CPUs up through and including RocketLake.
I gave the package to an AlderLake user who’s not gotten back to me but AlderLake support should now be fully functional.
Regarding the release notes, I am checking now.
To safeguard your installations, I’m retesting on a NUC10
5 Likes
Does the kernel need to be updated for that, or should it work with 5.15 as well?
No. This has been tested with the 5-15 kernel and works fine
[chuck@NUC10i5FNK ~.232]$ uname -a
Linux NUC10i5FNK 5.15.0-48-generic #54~20.04.1-Ubuntu SMP Thu Sep 1 16:17:26 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
[chuck@NUC10i5FNK ~.233]$
How this all works:
- PMS 1.29.1 itself has a database change – be patient with it at start
- Built-in hardware tone mapping drivers –
– On first invocation,
– The ICR libraries will be downloaded into a newDriversdirectory underPlex Media Server. This delays initial start, just like codecs do. From this point forward, you will be set. - User-installed ICR libraries are no longer required.
- The package releases the
apt-markhold on them .
2 Likes
Thank you @ChuckPa and the whole team for your hard work. 
Looking forward to hearing everyone’s success confirmations
Um… I am now getting something that I never had before - Dolby Vision content now gives me this:
It outright refuses to play back - Before 1.29.1 this worked.
Is that a Dolby Profile 5 ?
I think it is, yes. Streaming… but it worked before.
