Status of HDR support x86/Intel NUC

vbs · December 19, 2021 at 11:34 PM

Hi,

for some years I was following the status of HDR support in Kodi for Intel NUC devices here:

Thread

Intel true 10bits/HEVC/HDR support... ?

Hi everyone.

Intel HD500, HD600 series…. seem able to decode HEVC and generate 4k images.

But I have serious doubts about how many of those are truly able to deliver 10bits HDRs through their display interfaces.

Intel only seems to guarantee HEVC/10bits/4k/HDR in their HD620 model and correctly implemented in Display Port 1.3 / HDMI 2.0b so, probably, not all nucs, motherboards, etc.. support that full features in their firmware specs, ...

Is there any list of "confirmed platforms" able to deliver…

Gedeon30

November 23, 2018 at 7:33 PM

The latest test image from that thread worked nicely on my 7th gen NUC. Sadly that thread was closed and I could not find any further information regarding that topic since then.

So may I ask what the current status of this feature is or is there another thread where this topic is discussed? What is currently missing (roughly)? Is anything missing from Kodi? Is kernel development needed? Integration into LibreELEC?

Sorry for all the question, thanks for some answers.

HomerJau · December 20, 2021 at 2:42 AM

There seems to be ongoing HDR work for LibreElec’s RPi build at the moment so I guess we’ll see generic x86 HDR in official test builds soon (I hope).

In the mean time, smp did a recent HDR build of his generic LE version which you can find here on this thread:

Post

Intel NUC 8th Gen: SMP’s HDR build: Atmos Skip fix?

I have been using the smp HDR LibreElec HDR build on my Intel NUC8i3BEK for quite a while with excellent results. Thanks smp .

Kodi Git has just added a fix for a long-standing issue that causes skipping in high bitrate Atmos streams. Skipping can be so bad some titles are unplayable (examples: The Beatles Abbey Road album and Free Guy movie) . This fix resolves the issue with changes to Kodi’s audio syncing.

Here is the Matrix branch fix, there’s one for V20 master too:

…

HomerJau

October 22, 2021 at 8:13 PM

I’m using this on two Intel NUC8i3BEK NUCs successfully.

Jezza1222 · March 26, 2022 at 2:13 PM

DOES anyone have a copy of the best HDR versions as all SMP Dropbox links are dead..Thanks heaps

**Da Flex** · March 26, 2022 at 6:31 PM

Quote from Jezza1222

DOES anyone have a copy of the best HDR versions as all SMP Dropbox links are dead..Thanks heaps

This link works for me: Click!

Jezza1222 · March 27, 2022 at 2:19 PM

Thanks .can confirm works HDR and HD audio passthrough on an Apollo lake NUC6cay

I would love it use this as a daily driver but I have no access to the Kodi and librelec repository.is there and librelec 10 versions floating around or will I have to wait until Kodi 11 progresses

**Da Flex** · March 27, 2022 at 6:00 PM

Quote from Jezza1222

I would love it use this as a daily driver but I have no access to the Kodi and librelec repository.is there and librelec 10 versions floating around or will I have to wait until Kodi 11 progresses

If you need official repos, try LE nightly: Click! To my knowledge, latest nightly builds also have HDR.

You can update by copying the img.gz file (use wget <YOUR_NIGHTLY_IMAGE_URL> on ssh) into /storage/.update, and reboot.

Jezza1222 · March 28, 2022 at 1:57 PM

Thanks

Just an update..My Hisense TV with the nuc outputs 8 bit RGB. After a reboot the blacks are washed out on startup..for some reason turning the tv off an on restores the blacks briefly but eventually it becomes washed out again..probably with a refresh rate change. On my amlogic device outputting yuv at 20 bit..picture flawless blacks deep etc..I would prefer to use the nuc as it is more stable but the picture is so much better on a s905x3 device and coreelec..any tips to get consistent good blacks would be great.

**smp** · March 28, 2022 at 3:06 PM

That seems like a buggy firmware of your TV. Probably incorrectly detects RGB Full/Limited. Look if there is a setting that controls HDMI black level.

Jezza1222 · April 3, 2022 at 1:55 PM

Thanks there is a black level which is greyed out..it does look better when I don't limit the colour range..enable full range but I thought that was just for computer monitors?

Jezza1222 · April 4, 2022 at 8:06 AM

hi guys

just wanted to let you know that this issue was my TV, somehow the blacklevel setting became changeable and I changed it from auto to normal.

the problem was it was set to auto, and some of the auto modes washed out the picture, oddly enhanced black level washed it out the most.

thanks for everyones advice and tips

Jezza1222 · April 6, 2022 at 7:30 AM

Quote from Da Flex

If you need official repos, try LE nightly: Click! To my knowledge, latest nightly builds also have HDR.
You can update by copying the img.gz file (use wget <YOUR_NIGHTLY_IMAGE_URL> on ssh) into /storage/.update, and reboot.

Hi, I tried the latest nightly, no HDR support for my nuc6cay, only the SMP build works, not sure if i just got a bad nightly,

**CvH** · April 6, 2022 at 11:19 AM

Quote from Jezza1222

not sure if i just got a bad nightly

there is no hdr support at the nightlies

**Da Flex** · April 6, 2022 at 2:08 PM

Quote from Jezza1222

Hi, I tried the latest nightly, no HDR support for my nuc6cay, only the SMP build works, not sure if i just got a bad nightly,

I wasn't sure, sorry. Maybe smp can tell you how to add official repos.

HomerJau · April 7, 2022 at 10:26 PM

Da Flex Your previous post that mentioned HDR in latest nightlies got me excited. I was intending giving it a try. Maybe the 6th Gen NUC isn’t supported?

This reminds me to thank smp again for his HDR builds. Thanks! I’ve been getting HDR for over 12 months now and it makes 4K really pop on my LG OLEDs. I couldn’t go back to SDR after seeing HDR.

Nekromantik · April 13, 2022 at 5:44 PM

I think only RPi is supported for HDR in nightlies.

Kodi 20 is when Linux HDR is meant to be added so maybe in RC1 it will be there maybe.

who knows

we know it works 70% of the time from the SMP builds so its coming along at least

**jernej** · April 13, 2022 at 9:24 PM

Quote from Nekromantik

I think only RPi is supported for HDR in nightlies.

HDR should be supported by RK too and AW technically support it, but only as 8-bit output.