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

Quote from luckylukz

If anyone has any suggestions:

LibreELEC:~ # lsmod

Module Size Used by

8021q 24576 0

bnep 24576 2

snd_hda_codec_hdmi 61440 1

intel_rapl_msr 20480 0

wl 6385664 0

iwlmvm 323584 0

snd_hda_codec_realtek 122880 1

snd_hda_codec_generic 73728 1 snd_hda_codec_realtek

intel_rapl_common 24576 1 intel_rapl_msr

ledtrig_audio 16384 1 snd_hda_codec_generic

intel_powerclamp 20480 0

mac80211 692224 1 iwlmvm

snd_hda_intel 45056 0

iwlwifi 307200 1 iwlmvm

snd_hda_codec 114688 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek

snd_hda_core 73728 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek

snd_intel_dspcfg 16384 1 snd_hda_intel

snd_hwdep 16384 1 snd_hda_codec

idma64 20480 0

cfg80211 700416 4 wl,iwlmvm,iwlwifi,mac80211

exfat 73728 0

hid_multitouch 32768 0

btusb 57344 0

btrtl 24576 1 btusb

btbcm 16384 1 btusb

btintel 28672 1 btusb

bluetooth 524288 49 btrtl,btintel,btbcm,bnep,btusb

ecdh_generic 16384 3 bluetooth

ecc 28672 1 ecdh_generic

rfkill 24576 5 bluetooth,cfg80211

fuse 114688 7

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I tried to blacklist snd_intel_dspcfg but it still loads

echo "blacklist snd_intel_dspcfg" >> /storage/.config/modprobe.d/blacklist.conf

Maybe snd_intel_dspcfg is directly built into the kernel image using the parameter =y? In this case blacklisting might not work.

Blacklist Kernel Module in LibreELEC

Quote from Deezle

Maybe snd_intel_dspcfg is directly built into the kernel image using the parameter =y? In this case blacklisting might not work.

Blacklist Kernel Module in LibreELEC

I have read the document, but there is nothing I myself can further try in terms of kernel and builds.

Quote from luckylukz

I have read the document, but there is nothing I myself can further try in terms of kernel and builds.

But you could ask a dev if he/she is kind enough to make a test build with a recompiled kernel without the module mentioned above for you. heitbaum is active in this thread. Maybe he/she is reading this.

I have tried some test files and only Dolby Digital / + work as well as DTS. I can play these audios and when I stop playing audio resumes throughout libreelec.

I cannot play AAC, LPCM or anything with TrueHD/Master Audio/DTS HD.

When I play these files the video plays with no audio. Stoping the video causes libreelec to loose all audio and I need to reboot the system to get audio back.

Quote from luckylukz

I have tried some test files and only Dolby Digital / + work as well as DTS. I can play these audios and when I stop playing audio resumes throughout libreelec.

I cannot play AAC, LPCM or anything with TrueHD/Master Audio/DTS HD.

When I play these files the video plays with no audio. Stoping the video causes libreelec to loose all audio and I need to reboot the system to get audio back.

Replicated the same issue on

LibreELEC-Generic.x86_64-9.80-nightly-20210223-f6986f3

Quote from luckylukz

I have tried some test files and only Dolby Digital / + work as well as DTS. I can play these audios and when I stop playing audio resumes throughout libreelec.

I cannot play AAC, LPCM or anything with TrueHD/Master Audio/DTS HD.

When I play these files the video plays with no audio. Stoping the video causes libreelec to loose all audio and I need to reboot the system to get audio back.

Disappointing to hear that still having audio issues

Quote from pletopia

Disappointing to hear that still having audio issues

I totally agree. That keeps me from buying a NUC11PAHi7 or a comparable NUC10. Although I really would like to buy one for Kodi.

Maybe the following thread will interest you:

Asus PN50 challenge

Quote from smp

It was compiled from yesterday's git master and is only a couple of minor commits behind.

Hi, have you commited your changes to the libreelec branch that is nightly ?

I don't understand what you mean by that. My builds are compiled from LE git master + HDR patches from lrusak's git repo + some minor changes to make it all compile and work.

I hope X11 would be dropped after LE 10 is branched out. I feel like it is holding back the development of Generic x86.

Does anyone here use a Gemini Lake box with a Samsung 4K TV (2019 or 2020 model)?

After experiencing some annoying HDMI issues with 4K modes (e.g. intermittent white dots after a mode change, with known good cables) I decided to poke around in Intel driver and found the problem. Apparently, my Samsung TV doesn't like Intel's implementation of HDMI Scrambling.

I disabled scrambling with a below patch and all issues are gone.

diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index 2fa9ba3..b258e1d 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2549,7 +2549,7 @@ int intel_hdmi_compute_config(struct intel_encoder *encoder,
             pipe_config->hdmi_scrambling = true;
 
         if (pipe_config->port_clock > 340000) {
-            pipe_config->hdmi_scrambling = true;
+            pipe_config->hdmi_scrambling = false;
             pipe_config->hdmi_high_tmds_clock_ratio = true;
         }
     }

smp - forgive me if this has been beaten down before - but it is pretty hard to find information about the subject online. Your build, would it work on a NUC6CAYB to enable HDR output ?

The NUC6CAYB has a Celeron J3455 with Intel HD Graphics 500 and :

• HDMI 2.0 (4K @ 60 Hz) with HDMI CEC via MegaChips MCDP2800-BCT DisplayPort 1.2a to HDMI 2.0 Level Shifter/Protocol Converter

If memory serves me well it has the same LS-PCON as the newer generation NUC's have - tho I'm uncertain if the SoC can even support HDR.

Quote from lejose

smp - forgive me if this has been beaten down before - but it is pretty hard to find information about the subject online. Your build, would it work on a NUC6CAYB to enable HDR output ?

The NUC6CAYB has a Celeron J3455 with Intel HD Graphics 500 and :

• HDMI 2.0 (4K @ 60 Hz) with HDMI CEC via MegaChips MCDP2800-BCT DisplayPort 1.2a to HDMI 2.0 Level Shifter/Protocol Converter

If memory serves me well it has the same LS-PCON as the newer generation NUC's have - tho I'm uncertain if the SoC can even support HDR.

Nope only Gemini Lake and newer supports it with these builds.

Quote from CvH

afaik at least di and scaling are not there

Both DI and scaling are fully functional with GBM + VAAPI (DRM PRIME disabled.) There is absolutely no reason to use X11 on Intel hardware

Quote from CvH

depends at not upstreamed patches for kodi and ffmpeg

Those are only DRM PRIME stuff. GBM VAAPI is fully functional (without HDR) in current LE master without those non-upstreamed patches.

Quote from lejose

Your build, would it work on a NUC6CAYB to enable HDR output ?

Try the build from post #426. It includes Linux HDR patches for MCA LSPCON. No idea if it will work or not.