GitHub - Kwiboo/LibreELEC.tv: Just enough OS for KODI here you go

So if you like, you can try this img. I complied this from Kwiboo latests updates.

https://drive.google.com/open?id=1zopvz9pmt6i6aacfjlaljbuk3dwdxdz3

Quote from PrinsWes

I just wanted to chip in on the 4K issue. I've taken a look at getting a fully working device tree for LibreElec before, and I can confirm that the I2C communication on HDMI is broken when I checked last september. I wanted to get CEC working, but it seems that with FriendlyElec's default settings the wrong clocks are set. This prevents the T4/M4 reading the screens EDID and therefore only showing 'safe' frequencies and resolutions.

Now that the 5.x device tree files are in mainline Linux, maybe I can see what they changed in this regard and backport it to the current LibreElec builds.

Hello, so i have a question around this point. Is there no way to somehow "disable" the safe mode feature, or better force it to use 33840 x 2160?

Hello i have the same 4K issue on my NanoPi M4. are you able to update the files needed and point to the location and i can compile myself?

Much appreciated.

Quote from Mario.D

How do you update the existing LibreELEC to the new version without losing everything already installed? I'm still new and want to update but don't want to install everything again.

Thank you.

Copy the TAR file not the IMG.GZ file to the updates folder..

to access the folder, open up the share - \\xxx.xxx.xxx.xxx\ you should see the "Update" folder there.. just drop the new TAR file in there and reboot the device..

ok so, how do i check this sorry? i am using the DTB file that JerryPenguin suggested.

Quote from ukmark62

Do you have any 4k entries in your kodi 'whitelist'??

Go to settings, display and see if you have any whitelist entries. If not, click on whitelist and activate the 3840 entries and try again. I thought that you did not need these entries to play 4k, but it's worth a go. Just activate all resolutions that you need (usually the 1920x1080 and 3840x2160 ones)

No i do not have any 3840 entries in the whitelist.. this is my problem... i think Libreelec is not configured at an OS level to use 3840 res.

so i just tail the kodi logs and saw this..

019-03-22 14:00:14.988 T:4070645776 NOTICE: initialize done

2019-03-22 14:00:14.988 T:4070645776 NOTICE: Running the application...

2019-03-22 14:00:14.995 T:4070645776 NOTICE: starting zeroconf publishing

2019-03-22 14:00:14.996 T:4070645776 NOTICE: CWebServer[8080]: Started

2019-03-22 14:00:14.998 T:3743404912 NOTICE: ES: Starting UDP Event server on port 9777

2019-03-22 14:00:14.998 T:3743404912 NOTICE: UDP: Listening on port 9777 (ipv6 : true)

2019-03-22 14:00:16.230 T:3822801776 NOTICE: Register - new cec device registered on cec->Linux: CEC Adapter (0000:0000)

2019-03-22 14:00:17.419 T:3770676080 NOTICE: CZeroconfAvahi::groupCallback: Service name collision. Renamed to: Kodi (LibreELEC) #2

2019-03-22 14:01:48.612 T:4070645776 NOTICE: Previous line repeats 3 times.

2019-03-22 14:01:48.612 T:4070645776 NOTICE: NFS is idle. Closing the remaining connections.

LibreELEC:~ # tail /storage/.kodi/temp/kodi.log

2019-03-22 14:44:12.049 T:3913282416 NOTICE: Opening stream: 1 source: 256

2019-03-22 14:44:12.050 T:3913282416 NOTICE: Finding audio codec for: 86060

2019-03-22 14:44:12.050 T:3913282416 NOTICE: CDVDAudioCodecFFmpeg::Open() Successful opened audio decoder truehd

2019-03-22 14:44:12.050 T:3913282416 NOTICE: Creating audio thread

2019-03-22 14:44:12.050 T:3618632560 NOTICE: running thread: CVideoPlayerAudio::Process()

2019-03-22 14:44:12.051 T:3913282416 NOTICE: Opening stream: 2 source: 256

2019-03-22 14:44:12.061 T:3618632560 NOTICE: Creating audio stream (codec id: 86060, channels: 8, sample rate: 48000, no pass-through)

2019-03-22 14:44:12.135 T:4070645776 NOTICE: CVideoLayerBridgeRockchip::Configure - format=842088782 is10bit=true width=3840 height=2160 colorspace=0 color_primaries=9 color_trc=16 color_range=0 eotf=2 blob_id=95

2019-03-22 14:44:12.203 T:4070645776 NOTICE: Whitelist search for: width: 3840, height: 2160, fps: 23.976, 3D: false

2019-03-22 14:44:12.203 T:4070645776 NOTICE: Display resolution ADJUST : 1920x1080 @ 60.000000 Hz (18) (wight: 0.000)

Quote from JerryPenguin

Update 2019-03-22 to my tutorial

I don't know exactly why, but for WiFi I need more modules to start it automatically.

I now use the updated LE version of balbes150 at

https://yadi.sk/d/qgyvmkow5oqcha/20190320

Therefore I extended the file /storage/.config/modules-load.d/bcmdhd.conf:

Code

brcmfmac
brcmutil
bcmdhd

Now my WiFi starts again without any loss of time.

Display More

hey JerryPenguin ,

Can i please ask you to test my problems listed above? what is your device connected to? Directly to 4k tv/display? Do you see 3840 x 2160 pixels in the display options or when playing a 4k file (system info when playing 4k file)?

Hello all,

I just wanted to check if there is a fix out for the NanoPi M4/T4? currently I'm running (nightly-20190321-9ab3d68 (RK3399.arm) The issue is that the Max resolution i can set on this build is 1920x1080p. It is connected directly to my Sony KD-65x8505C TV. I can please 4k files but the resolution is always staying @ 1920x1080p. I have described in more detail my issue here. Link.

Can anyone help?

Hey Mario.D so here is a link where you can download some test content (if needed) Link.

So i did some tests last night. when i play a 4K movie file, i hit the information widow and see that Kodi is stating that the resolution is 1920x1080p@60Hz. so this means that Kodi is actually downscaling 4K content to 1920x1080p.

When i go to Settings - Display i can set the GUI limit to "unlimited" and then is still only see the display resolution maxing out 2 1920x1080p.

So my real question here is where under the bonnet can i set the resolution to more than 1920x1080p?

Ok, thanks for this. So i have done some more research and it seems that the Kodi GUI is limited to 1920x1080p and this is the max resolution you can get out of Kodi GUI (which is not bad otherwise you might struggle to see what you doing). I need to check later whether or not the resultion automatically changes when you select to play a 4K movie. I was able to play 4K movie files but they were a little choppy.

Mario.D , can i ask you to test playing a standard 4K MKV/any local 4K file. Once its playing can you please follow these instructions? and take a photo of the outputs?

Link: Video playback - Official Kodi Wiki

6 Player Process Info

The Player Process Information OSD details the Audio and Video codecs in use, along with system memory and cpu usage.

The OSD can be activated using one of the following methods...

• Pressing o on a keyboard
• Pressing the equiveland key on your remote control. This is not a standard button press and will need to be mapped to your remote control. See: Keymap Editor
• Using one of the remote control Apps, special functions are available to activate and deactivate this OSD

See also: Codecinfo

7 Player Debug Info

The Player Debug Info screen displays dynamic data of the current audio/video stream.

The OSD can be activated using one of the following methods...

• Pressing ctrl+⇧ Shift+o on a keyboard
• Pressing the equiveland key on your remote control. This is not a standard button press and will need to be mapped to your remote control. See: Keymap Editor
• Using one of the remote control Apps, special functions are available to activate and deactivate this OSD

VSyncOffIndicates the offset between the vertical sync signal of the display and the timestamps of the video frames. This offset is used for a/v sync. If VSyncOff is greater than zero and constant, all good. If the value shows 0.0, the framerate (fps) of the video does not match the refresh rate (Hz) of the display.

See also: Codecinfo

8 Display Info

The Display Information screen displays the View Mode, Aspect Ratio and other display related data.

The OSD can be activated using one of the following methods...

• Pressing z on a keyboard
• Pressing the equiveland key on your remote control. This is not a standard button press and will need to be mapped to your remote control. See: Keymap Editor
• Using one of the remote control Apps, special functions are available to activate and deactivate this OSD

The following data is displayed

View ModeThe zoom/crop/stretch mode currently in use. For available options See: Video Settings above.SizingInformation about the output display of the video stream(Resolution of video)->(Output resolution. Shows upscaling if any) (If any zoom has been applied) AR:Aspect Ratio of video (Pixels: Pixel ratio in use) (VShift: Amount of Vertical Shift applied)See: Video Settings above.Screen resolutionReported resolution to Kodi. Usually the resolution set on the graphics card, and the TV may then further upscale. Also displays the type of Full Screen in use.

Ill do the same this evening and post my findings..

Appreciate the help.

Great work with this BTW..

So, i am currently running (nightly-20190315-0fa0712 (RK3399.arm) on my NanoPi M4-2GB version.

Issues found:

• Kodi GUI not supporting 4K resolution - Whitelist only shows following resolution options.
  • 1280x720p60,1920x1080p60, 1920x1080p50,1280x720p50, 720x576p50, 720x480p60
• Plays 4K mkv's (2160P UHD BluRay HDR10 REMUX HEVC DOLBY ATMOS TrueHD 7 1)
  • @1920x1080p resolution, and video playback is slightly jittery.
• Wi-Fi adapter not recognised
• CEC not working when using TV remote to control Kodi.

More to follow.

Quote from Mario.D

Not on a 4K yet cause I'm still configuring it, but I have played 4K video with no issues via YouTube. I have a 4K TV and eventually will connect to just play, but the true reason for this build is to connect to a projector for projecting onto a 90" screen.

Can i please ask you to test it connected to a 4K display? If go into settings -> Display, what options are whitelisted and what resolution options can you select?

Quote from Aciel

I can't comment on this as I don't have a 4k Display.

Can anyone comment? it seems the RockPro64 and Rock Pi4 have different GPU chips... could this be something to consider?

Nice work, what build are you using? Are you plugged in to a 4K display? once i get the native 4k @ 60Hz working, ill start testing Audio and Video findings.

Hello, not sure if i need to create a new thread, but i would like to know what is the best build so far for NanoPi M4?