Posts by s25003

Quote from ersenos

Guys please help me out, i have a U9-H with 8.2.2.4 overclock, everything works perfect but still no DTS-HD MA Passthrough?

its a 55OLEDB7V

if i plug a usb with the DTS test file it works and i get infomation that DTS is on,

but kodi i just get no sound whatsoever, the only way i can get it to work is to turn off DTS/DTS HD-MA passthrough?

any ideas why, its really bugging me its the only thing thats failing on this whole setup

-----------

Have tried:

Different HDMI cables - nope

PCM / HDMI mode - nope

flicked every swtich in the system/audio section - nothing

Display More

Hi

You can not passthrough DTS HD-MA to your 55OLEDB7V because TV can not read this type of lossless audio stream. HDMI handchake information from your TV to the U9-H i saying " no I can not do this " and therefore no sound.

When you use the USB test drive. The TV is decoding the core DTS file inside the container and you got DTS sound. But this is not lossless DTS-HD MA. It is corse DTS. This is for backwards compatibility.

Quote from wrxtasy

There is simply no need to run the Kodi GUI at 2160p anything, all it does it heat up the Chipset necessarily. Plus your 4K TV will have better quality user interface 1080p > 4K picture upscaling vs pretty much any media player. Then to also really annoy you it causes black screen and HDMI issues.

Set the Kodi GUI to 1080p60Hz or 50Hz and also set:

in Kodi settings > Player > Video > Adjust display refresh rate > Start/stop

Sync Playback to Display > Off

If you play 2160p material AML LE Kodi will auto refresh AND 1080p <<<--->>> 2160p auto Resolution switch.

Set and forget.

All 4K AML LE or OSMC Kodi Krypton media players operate the same.

Display More

is it correct to say that all 1080p video will never be upscaled to 2160p using a 4k tv. It will be passtrough to the TV to upscale.

The setting in Kodi: " .Enable HQ scalers for scaling above 20% " will be overrided.''

Quote from wrxtasy

If you use:

echo "echo '422,10bit' > /sys/class/amhdmitx/amhdmitx0/attr" >> /storage/.config/autostart.sh

You will get green screen video output with kszaq's LE 8.2.x S9xx AML builds because that uses the old AML Linux Kernel that has a bug in it.

Those sort of terminal commands are only needed if you are watching 4K HDR 10bit video anyway.

With the old kszaq Kernel you actually use this command for proper 4K HDR Chroma and 10bit output:

echo "echo '444,10bit' > /sys/class/amhdmitx/amhdmitx0/attr" >> /storage/.config/autostart.sh

A high speed or premium certified HDMI 2.0a cable is then needed because you will be transmitting a lot more 4K HDR display data over HDMI.

Some people (like hdmkv) have 4K HDR projectors that only support 422,10 or 12bit input - so this was the reason I plugged in the newer AML Linux Kernel in the first place - to fix the 422,10bit green screen issue.

Display More

Thank you wrxtasy for this information.

Is the command line in autostart.sh going to be there permanently even after I have turned off the

U9-h ?

Quote from wrxtasy

Noise reduction is usually only enabled when hardware deinterlacing. ie when viewing OTA deinterlaced TV or deinterlaced DVD's.

Turning it off permanently improves ghosting and smeariness when viewing that type of content, usually TV's do this type of picture post processing better.

Chroma and bit depth usually has to be enabled via issuing a Terminal command after you have logged into LibreELEC.

The new Kernel by default outputs 4:2:2 Chroma at 8 bit depth.

I've added some options in Kodi Settings > System > Down the bottom > Community Features

Based on GDPR-2 's Kodi Leia additions

Simply enable 422,10bit if you are viewing 4K HDR 10bit content and want greater color depth to possibly reduce color banding.

You can leave this enabled for regular SDR content as well, the kernel handles auto switching between REC.709 and BT.2020 for SDR and HDR.

LibreELEC-S912.arm-8.2-Chroma-422.10bit.tar

Notes:

- there may be some Audio issues with this release after using audio passthrough. Straight 2.0 PCM audio is fine.

- the previously jerky video playback when watching H264 OTA TV seems to have disappeared as well.

- for those with a decent 2.1 only audio system and playing 5.1/7.1 audio downmixed to 2.0 PCM.

Set the experimental "Include LFE in stereo downmix" audio option to 100% for extra audio punchiness from the subwoofer.

Display More

Thank you for the information.

I use kszaq 8.2.2.3 build which is working perfect with HD audio passthrough to my Marantz reciever. Can I with this build improve the picture

quality by enable 422.10bit manually ? I am asking because I do not want to have any audio issues now when the passthrough is working so well

with this build.

If so.

Using the command below via terminal SSH

echo "echo '422,10bit' > /sys/class/amhdmitx/amhdmitx0/attr" >> /storage/.config/autostart.sh

Will this be permanently added to autostart.sh ? I can reboot the Minix and autostart.sh is not changed back to default ?

Sorry I am completely new to Linux but I am learning.

Quote from wrxtasy

Reverted all the new Kernel's IR patches to compile this version, it's untested with IR remotes:

LibreELEC-S912.arm-8.2-New.Kernel.tar

Notes:

- deinterlacing - noise reduction is permanently disabled in this version

- 4K 50/60fps video cannot be played back with a Chroma and bit depth of 444,10bit (out of HDMI 2.0 specifications)

- also included is this OSMC AML patch for mixing in the LFE channel when using 2.0 PCM audio.

4K 24p 25/30fps HDR should be using this Chroma settings and bit depth:

echo "echo '422,10bit' > /sys/class/amhdmitx/amhdmitx0/attr" >> /storage/.config/autostart.sh

Display More

HI wrxtasy

I am running 8.2.2.3 on my U9-h. I am using it only for playing 24p 4k HDR movies via NAS. Is noice reduction on by default in 8.2.2.3 even

playing only 24p material ?

If I install your build above. Do I get any picture quality improvements regarding sharpness then ? Noice reduction off ?

The chroma and bit depth setting above. Does not the system switch to this mode automatic playing 24p 4k HDR content even in 8.2.2.3 ?

Thank you for your help and fantastic work with the builds.

Quote from e2zippo

That solved it! I didn't think that ticking True-HD would disable sound completely! Thanks a lot!

You are not going to be able to passthrough DTS-HD MA and Dolby True-HD via optical .

Quote from AmigoHD

Yes, switching between resolutions and color spaces does work without manual actions.

Thank You !

Quote from boot2k3

Is it possible to fix resolution and framerate at startup?

If I start S912 box before TV and AVR than I receive 720p60hz after LE started. But I need 1080p50Hz.

I triedfw_setenv hdmimode 1080p50hz and fw_setenv outputmode 1080p50hz, but it doesn't work in that case

I am not sure but don’t you med to first start TV and AVR to be able to receive the correct HDMI handchake chain to the S912 box ?

The box can then output the correct output to the TV matchning the video resolution and color depth.

Hi all !

Can I now be sure my Minix U9-h will auto switch to correct resolution and color dept between HDR and SDR movies whithout having to add any manual commands during a movie evening with my friends ?

With the 8.2.2.3 build.

Panasonic OLED EZ950 TV.

Thank you in advance for your reply.

Quote from Wizzi07

I have the mecool m8s pro S912 3gb and can confirm it works perfectly with kzsaqs 8.2.2.2 installed to internal. 4k h265 mkv play perfectly, WiFi, Bluetooth, passthrough audio also all working

Quote from Elecer10

I ve been eyeing the Minix U9-H for some time now but its way more expensive than M8S Pro L. To be honest are there any real differences in these 2 boxes?

Yes. The spec looks similar but I guess the difference between most of this type of boxes is how well they are working out of the box

with basic functionality. They have difference in technical design. I have not read so much about how satisfied people are with the M85 Pro L but I know people are satisfied with the U9-H running LibreELEC.

I do not know how my box is working with Android. Have not tested it. After reading this forum I followed the tips to run LibreELEC on the device from start.

Works very nice and simple.

Quote from Elecer10

Sorry for bothering you with this but am breaking my head to find a sturdy libreelec box to replace my RPi 2 since its annoying that it doesnt do h265 and have to unplug and replug the power cable everytime.

Can I switch on and off(or maybe sleep and wake?) a box like Mecool M8S Pro L with an airmouse like the Minix A2 lite since the box doesnt have a hardware power button? Or do I need a box like the BB2 Pro? Do 905 boxes do this?

Thanks a lot.

Hi Elecer10

Buy the Minix U9-H

I have it myself. Plays H265 4K .mkv container movies perfect with LibreELEC 8.2.2.2.

No problem.

Quote from wpc

I think I got this, run this to see what your device is capable of

cat /sys/class/amhdmitx/amhdmitx0/dc_cap

then just cat what you want in.

echo 'rgb,8bit' > /sys/class/amhdmitx/amhdmitx0/attr

echo '444,8bit' > /sys/class/amhdmitx/amhdmitx0/attr

echo '444,10bit' > /sys/class/amhdmitx/amhdmitx0/attr

Display More

OK wpc

Thank You

Quote from Tim_Taylor

No.

I use automatic - good enough for me

OK Tim_Taylor

Quote from Tim_Taylor

OK You´re the man.

When I play 4k hevc hdr(BT20.20) on my S912 box connected to my TV supporting 4k hdr - everything is fine

Why don´t You use a supported TV ?

Sorry, I don´t understand why You are whining

Hi Tim_Taylor

Are you forcing the device to output 4:4:4 10bit to your TV or do you let the device do it automatic with support from the

handshake information between the device and TV ?

I am asking because I am wondering how good the chroma upscaling quality 4:2:0 to 4:4:4 is on the device. If it is bad it is maybe better

to force 4:2:0 10bit to the TV and let the TV do the 4:2:0 to 4:4:4 upscaling instead.

What do you think ?

Quote from Pelican

Check first:

cat /sys/class/amhdmitx/amhdmitx0/dc_cap

You will see what are your options.

And then you can change it.

For example:

echo '422,8bit' > /sys/class/amhdmitx/amhdmitx0/attr

Display More

OK Pelican

Thank You

Hi all

I wonder if it is any add-on I can use to change or monitor the video chroma subsampling output. 4:2:0 or 4:2:2 or is LibreELEC always sending

no subsampling at 4:4:4 ?

If so. Is LIbreELEC sending full RGB 4:4:4 0 - 256 or Y'CbCr 4:4:4. 16 - 235 ?

I have the MInix u9-h device with latest LibreELEC installed.

Hi all

I am new to this forum.

I bought myself a Minix u9-h for Christmas. I needed an additional Kodi device to complete my old HTPC which is not powerful enough to

play 4k movies. Instead of upgrading my HTPC for about $1000 to handle 4k HEVC/H.265 in a .mkv container properly I bought this device

for the job.

I am running the device with LibreELEC 8.2.2.1a. I am using my old HTPC as mediaserver through Kodi UPnP and it plays 4K UHD movies with

HD Audio passtrought to my reciever perfect with no audio sync problems. Subtitles is also working perfect through Opensubtitles.

I want to thank kszaq for all great work with the builds to make our devices work as they were built for. I also want to recommend the Minix u9-h device for people reading this forum planning to buy a Kodi device.