[SOLVED] CoreELEC-S912.arm-8.99.1.1-S912 / CoreELEC-S912.arm-8.95.7-S912 ---> Black Screen on TV

Help & Support Hardware
1

Hi,

My mother tongue is french so sorry for my crap english.

I have an OTT box BM8PRO (https://www.entertainmentbox.com/latest-bm8-pro-tv-box-firmware-download-android-marshmallow-6-0/) and a SAMSUNG Q7F TV (2017 version) .

The original firmware of my BM8PRO is Android and all works fine on my SAMSUNG Q7F TV. Playing 1080p or 2160p videos works fine.

I have made a dual boot on my BM8PRO with CoreElect too.
I have tried CoreELEC-S912.arm-8.99.1.1-S912 and CoreELEC-S912.arm-8.95.7-S912 versions. All works fine on my computer monitor. Playing 1080p and 2160p videos works well.

But when i plug my BM8PRO on my Samsung Q7F TV i can look 1080p videos but when i want playing a 2160p video i have a black screen on KODI.

I have tried many setting on KODI but nothing change. Always black screen with 2160p videos on my Samsung TV.

What does not work well according to you ?
Hardware problem between my TV and CoreELec ?

Someone would have an idea and could help me ?

Thanks in advance :wink:

2

try this version:

3

Ok i try it and i be back for saying if its better.

Thx.

5

@boot2k3
Same.
Black screen on 2160p and no GUI return.

6

Here is a script that will help show more information about what is happening.

dispinfo2.sh

Use the following to get it on the device and make it executable.

wget https://discourse.coreelec.org/uploads/default/original/1X/a22d7f0fb8a08caa15a63dc8a5dad51c8befbf43.sh -O /storage/dispinfo2.sh
chmod 755 /storage/dispinfo2.sh

then it’s just a a matter of the following to run the script

/storage/dispinfo2.sh

This will collect display info and post it to a pastebin site, providing you will a url you can post here.

If you run the script while trying to play a video that results in a black screen it well help to figure out why it is happening.

7

In addition to the above, make sure that HDMI 2.0 is enabled on the TV, and that the HDMI cable is High Speed Premium Certified.

8

@TheCoolest
All works if i boot with my BM8PRO on Android … so all is good with HDMI port and cable.

9

That’s not an indication. I doubt Android does any sort of color depth or color space switching.

10

@cdu13a
@TheCoolest

I m so crap…

With the new version of cdu13a (CoreELEC-S912.arm-9.0-devel-1549211042-S912.img) AND another new HDMI cable i have finally images on 2160p videos.

Thanks a lot guys for your valuable support and your help :wink:

PS : i have try the script too and i have can see all the informations of my TV.