[unoffical] LE-9.2/9.80-Images for RK3229/RK3228

Quote from GRegNfo

Hi guys,

I tried to plug my V88-4K (rk3229) box to a monitor (supports touch but whatever) that is capable of:

640 x 480 at 60Hz

800 x 600 at 60Hz

1024 x 768 at 60Hz

1280 x 800 at 60, 60RB Hz

1280 x 960 at 60Hz

1280 x 1024 at 60Hz

1360 x 768 at 60Hz

1366 x 768 at 60, 60RB Hz

I couldn't manage to make it sync so, no image at all... it tries to auto sync to the box with no result.

Do I need to change anything in the SYSTEM image, add some file to my SD card root or folders?

Thanks!!!

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Hi,

try to open file on sdcard first partition extlinux/extlinux.conf and remove/adjust the resolution inside kernel parameter 'video'

Quote from ilmich

Hi,

try to open file on sdcard first partition extlinux/extlinux.conf and remove/adjust the resolution inside kernel parameter 'video'

[EDIT]: I used a VGA to HDMI adapter to plug the monitor to the box!

Output: 1 x VGA DB15 fem. VESA up to WUXGA, 1920 x 1080 at 60 Hz + 3.5 mm stereo jack

link:

HDMI to VGA and audio adapter, single port, black (A-HDMI-VGA-02)

C'è qualcuno con un buon cuore che mi spiegherebbe come estrarre il dtb dalla mia scatola Android, e poi spiegarmi come inserirlo passo dopo passo nel mio libreelec? Quindi spero di risolvere il problema di poter spegnere il mio mxq rk3229 dal telecomando.
Grazie mille.

I installed on nand and it only recognize 28mb, what to do?

Many thanks for this! Any tips to make the playback smoother?

I'm experiencing random crashes on Kodi, the following error code shows up on a black screen:

grep: /proc/net/pnp: No such file or directory
LibreELEC (knaerzche): devel-202004272131119-b7186bc

Hi all,

I've discovered that changing the gpu governor from 'simple_ondemand' (that seems to be hardcoded at startup into lima driver) to 'performance', set the gpu clock stable to maximum rate, improving overall gui experience.

echo -n performance > /sys/devices/platform/20000000.gpu/devfreq/20000000.gpu/governor

I've also experimented that

- the gpu is overclockable at 700Mhz (higher clock rate cause hard reset)

- CPU can be overclockable at 1,500Ghz

However, the above clocks settings don't seem to make miracles (at least with kodi).

Quote from ilmich

Hi all,

I've discovered that changing the gpu governor from 'simple_ondemand' (that seems to be hardcoded at startup into lima driver) to 'performance', set the gpu clock stable to maximum rate, improving overall gui experience.

Code

echo -n performance > /sys/devices/platform/20000000.gpu/devfreq/20000000.gpu/governor

I've also experimented that

- the gpu is overclockable at 700Mhz (higher clock rate cause hard reset)

- CPU can be overclockable at 1,500Ghz

However, the above clocks settings don't seem to make miracles (at least with kodi).

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Something I noticed that too. Actually the driver should take care to do ondemand scaling, but the GPU is not reporting the load very well so it always stays at lowest frequency.

Overclocking does not worth it, the GPU and memory subsystems (2 core GPU + 64 bit memory bus) are simply not tough enough on the rk322x.

Anyway to make it permanent:

echo 'echo performance > /sys/class/devfreq/http://20001000.gpu/governor' >> ~/.config/autostart.sh

Quote from jock2

Overclocking does not worth it, the GPU and memory subsystems (2 core GPU + 64 bit memory bus) are simply not tough enough on the rk322x.

You are right... this kind of box is not suitable for cpu/gpu intensive tasks, but, in my opinion, it's powerful enough for libreelec usage.

Looking into kodi source I've discovered that for software decoded streams, gpu is used for upscaling and color conversions (opengles vertex/fragment shaders).

With a mpeg4 stream (that in mainline libreelec is not hardware decoded) playing with scaler(nearest vs bilinear) and resolutions (fullhd vs hd), make video looks worse/better.

So after some experiments with shaders I've finally found this trick.

To reduce gpu load I've substantially reverted this commit (by removing sections into shaders)

[GLES] VideoPlayer: rewrite yuv - rgb conversion · xbmc/xbmc@0aadf5d · GitHub

that introduces other colorspace conversions.

I know it's not a clean solution, considering I'm not a color space expert, but now the box is almost perfect

Searching on kodi official github I've found

- Kodi PR#15286 improved rendering performance: · wrxtasy/CoreELEC@8f98ed7 · GitHub CoreELEC patch that is basically what I've done with my box

- [GLES] memcpy instead multi glTexSubImage2D for planes with pitch by peak3d · Pull Request #15286 · xbmc/xbmc · GitHub discussion of what is the problem

- Kodi 18.0 stutters when playing DVD files (VIDEO_TS) on Fire TV · Issue #15405 · xbmc/xbmc · GitHub discussion (now closed) that let me thinking kodi devs will never accept this kind of patch (that is, obviusly, more like a workaround than a solution)

At this point let me know knaerzche if you think reasonable to patch only this libreelec port.

Just for share my experience:

- I've switched back to stable (only because I don't need an external wifi usb adapter)

- patched kodi (no overclock.. no governor... only shaders)

and now, I'm able to play well also netflix/prime tv shows with the appropriate kodi addon (assuming sd quality that is the max available resolution with the DRM addon usable with libreelec).

Tested LibreELEC-RK322x.arm-9.2-devel-20200427220512-b7186bc-rk3229-ntn8.tar

on Dolamee D5 1Gb Ram 8Gb Rom, wifi rtl8189es;

everything works perfectly: lan, wifi, etc ...

Thank you so much for the excellent work

Quote from ilmich

Searching on kodi official github I've found

- Kodi PR#15286 improved rendering performance: · wrxtasy/CoreELEC@8f98ed7 · GitHub CoreELEC patch that is basically what I've done with my box

- [GLES] memcpy instead multi glTexSubImage2D for planes with pitch by peak3d · Pull Request #15286 · xbmc/xbmc · GitHub discussion of what is the problem

- Kodi 18.0 stutters when playing DVD files (VIDEO_TS) on Fire TV · Issue #15405 · xbmc/xbmc · GitHub discussion (now closed) that let me thinking kodi devs will never accept this kind of patch (that is, obviusly, more like a workaround than a solution)

At this point let me know knaerzche if you think reasonable to patch only this libreelec port.

Just for share my experience:

- I've switched back to stable (only because I don't need an external wifi usb adapter)

- patched kodi (no overclock.. no governor... only shaders)

and now, I'm able to play well also netflix/prime tv shows with the appropriate kodi addon (assuming sd quality that is the max available resolution with the DRM addon usable with libreelec).

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Can you please elaborate how to apply this patch? I would like to be able to play hevc files without system reboot,

Thank you

Quote from jaum20

Can you please elaborate how to apply this patch? I would like to be able to play hevc files without system reboot,

Thank you

Assuming that you have a linux distribution:

- flash image as usual on a SD card

- mount first partition of sd card on your linux machine

# mount /dev/mmcblk0p1 /some_mountpoints

- explode libreelec filesystem with squashfs tools

# mkdir tmp_dir 
# cd tmp_dir
# unsquashfs /some_mountpoints/SYSTEM 

at this point under squashfs-root you can find the exploded filesystem of libreelec.

- replace file squashfs-root/usr/share/kodi/system/shaders/GLES/2.0/gles_yuv2rgb_basic.frag

/*
 *      Copyright (C) 2010-2013 Team XBMC
 *      http://xbmc.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with XBMC; see the file COPYING.  If not, see
 *  <http://www.gnu.org/licenses/>.
 *
 */

#version 100

precision mediump float;

uniform sampler2D m_sampY;
uniform sampler2D m_sampU;
uniform sampler2D m_sampV;
varying vec2 m_cordY;
varying vec2 m_cordU;
varying vec2 m_cordV;
uniform vec2 m_step;
uniform mat4 m_yuvmat;
uniform mat3 m_primMat;
uniform float m_gammaDstInv;
uniform float m_gammaSrc;
uniform float m_toneP1;
uniform vec3 m_coefsDst;
uniform float m_alpha;

void main()
{
  vec4 rgb;
  vec4 yuv;

#if defined(XBMC_YV12) || defined(XBMC_NV12)

  yuv = vec4(texture2D(m_sampY, m_cordY).r,
             texture2D(m_sampU, m_cordU).g,
             texture2D(m_sampV, m_cordV).a,
             1.0);

#elif defined(XBMC_NV12_RRG)

  yuv = vec4(texture2D(m_sampY, m_cordY).r,
             texture2D(m_sampU, m_cordU).r,
             texture2D(m_sampV, m_cordV).g,
             1.0);

#endif
/* START PATCH: DISABLE BT.709 colorspace conversion

  rgb = m_yuvmat * yuv;
  rgb.a = m_alpha;

#if defined(XBMC_COL_CONVERSION)
  rgb.rgb = pow(max(vec3(0), rgb.rgb), vec3(m_gammaSrc));
  rgb.rgb = max(vec3(0), m_primMat * rgb.rgb);
  rgb.rgb = pow(rgb.rgb, vec3(m_gammaDstInv));

#if defined(XBMC_TONE_MAPPING)
  float luma = dot(rgb.rgb, m_coefsDst);
  rgb.rgb *= tonemap(luma) / luma;
#endif

#endif
END PATCH: DISABLE BT.709 colorspace conversion */ 
  gl_FragColor = vec4(vec3(m_yuvmat * yuv),m_alpha);
}

- replace file squashfs-root/usr/share/kodi/system/shaders/GLES/2.0/gles_yuv2rgb_bob.frag

/*
 *      Copyright (C) 2010-2013 Team XBMC
 *      http://xbmc.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with XBMC; see the file COPYING.  If not, see
 *  <http://www.gnu.org/licenses/>.
 *
 */

#version 100

precision highp float;
uniform sampler2D m_sampY;
uniform sampler2D m_sampU;
uniform sampler2D m_sampV;
varying vec2 m_cordY;
varying vec2 m_cordU;
varying vec2 m_cordV;
uniform float m_alpha;
uniform mat4 m_yuvmat;
uniform float m_stepX;
uniform float m_stepY;
uniform int m_field;
uniform mat3 m_primMat;
uniform float m_gammaDstInv;
uniform float m_gammaSrc;
uniform float m_toneP1;
uniform vec3 m_coefsDst;

void main()
{
  vec4 rgb;

  vec2 offsetY;
  vec2 offsetU;
  vec2 offsetV;
  float temp1 = mod(m_cordY.y, 2.0 * m_stepY);

  offsetY  = m_cordY;
  offsetU  = m_cordU;
  offsetV  = m_cordV;

  offsetY.y -= (temp1 - m_stepY / 2.0 + float(m_field) * m_stepY);
  offsetU.y -= (temp1 - m_stepY / 2.0 + float(m_field) * m_stepY) / 2.0;
  offsetV.y -= (temp1 - m_stepY / 2.0 + float(m_field) * m_stepY) / 2.0;

  float bstep = step(m_stepY, temp1);

  // Blend missing line
  vec2 belowY, belowU, belowV;

  belowY.x = offsetY.x;
  belowY.y = offsetY.y + (2.0 * m_stepY * bstep);
  belowU.x = offsetU.x;
  belowU.y = offsetU.y + (m_stepY * bstep);
  belowV.x = offsetV.x;
  belowV.y = offsetV.y + (m_stepY * bstep);

  vec4 rgbAbove;
  vec4 rgbBelow;
  vec4 yuvAbove;
  vec4 yuvBelow;

  yuvAbove = vec4(texture2D(m_sampY, offsetY).r, texture2D(m_sampU, offsetU).g, texture2D(m_sampV, offsetV).a, 1.0);
  rgbAbove = m_yuvmat * yuvAbove;
  rgbAbove.a = m_alpha;

  yuvBelow = vec4(texture2D(m_sampY, belowY).r, texture2D(m_sampU, belowU).g, texture2D(m_sampV, belowV).a, 1.0);
  rgbBelow = m_yuvmat * yuvBelow;
  rgbBelow.a = m_alpha;

  rgb = mix(rgb, rgbBelow, 0.5);
/* START PATCH: DISABLE BT.709 COLOR CONVERSION

#if defined(XBMC_COL_CONVERSION)
  rgb.rgb = pow(max(vec3(0), rgb.rgb), vec3(m_gammaSrc));
  rgb.rgb = max(vec3(0), m_primMat * rgb.rgb);
  rgb.rgb = pow(rgb.rgb, vec3(m_gammaDstInv));

#if defined(XBMC_TONE_MAPPING)
  float luma = dot(rgb.rgb, m_coefsDst);
  rgb.rgb *= tonemap(luma) / luma;
#endif

#endif
END PATCH: DISABLE BT.709 COLOR CONVERSION */
  gl_FragColor = rgb;
}

- repackage squash filesystem, copy to sd card and umount

 # mksquashfs squashfs-root/ SYSTEM -comp gzip
 # cp SYSTEM /some_mountpoints/SYSTEM
 # umount /dev/mmcblk0p1

that's all.

NB: this patch disable BT.709 color conversion that is slow on my mali 400 because it's use the pow math function.

hey guys. i was hoping someone would help. i have an mk4vb v02 device and has the same hardware combo as v88 mars. the v88 mars image boots among all the images but kodi crashes to black screen after a few seconds. it successfully boots to kodi but crashes just a few seconds in. attached is my log.

Quote from ilmich

Assuming that you have a linux distribution:

- flash image as usual on a SD card

- mount first partition of sd card on your linux machine

Code

# mount /dev/mmcblk0p1 /some_mountpoints

- explode libreelec filesystem with squashfs tools

Code

# mkdir tmp_dir 
# cd tmp_dir
# unsquashfs /some_mountpoints/SYSTEM 

at this point under squashfs-root you can find the exploded filesystem of libreelec.

- replace file squashfs-root/usr/share/kodi/system/shaders/GLES/2.0/gles_yuv2rgb_basic.frag

Code

/*
 *      Copyright (C) 2010-2013 Team XBMC
 *      http://xbmc.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with XBMC; see the file COPYING.  If not, see
 *  <http://www.gnu.org/licenses/>.
 *
 */

#version 100

precision mediump float;

uniform sampler2D m_sampY;
uniform sampler2D m_sampU;
uniform sampler2D m_sampV;
varying vec2 m_cordY;
varying vec2 m_cordU;
varying vec2 m_cordV;
uniform vec2 m_step;
uniform mat4 m_yuvmat;
uniform mat3 m_primMat;
uniform float m_gammaDstInv;
uniform float m_gammaSrc;
uniform float m_toneP1;
uniform vec3 m_coefsDst;
uniform float m_alpha;

void main()
{
  vec4 rgb;
  vec4 yuv;

#if defined(XBMC_YV12) || defined(XBMC_NV12)

  yuv = vec4(texture2D(m_sampY, m_cordY).r,
             texture2D(m_sampU, m_cordU).g,
             texture2D(m_sampV, m_cordV).a,
             1.0);

#elif defined(XBMC_NV12_RRG)

  yuv = vec4(texture2D(m_sampY, m_cordY).r,
             texture2D(m_sampU, m_cordU).r,
             texture2D(m_sampV, m_cordV).g,
             1.0);

#endif
/* START PATCH: DISABLE BT.709 colorspace conversion

  rgb = m_yuvmat * yuv;
  rgb.a = m_alpha;

#if defined(XBMC_COL_CONVERSION)
  rgb.rgb = pow(max(vec3(0), rgb.rgb), vec3(m_gammaSrc));
  rgb.rgb = max(vec3(0), m_primMat * rgb.rgb);
  rgb.rgb = pow(rgb.rgb, vec3(m_gammaDstInv));

#if defined(XBMC_TONE_MAPPING)
  float luma = dot(rgb.rgb, m_coefsDst);
  rgb.rgb *= tonemap(luma) / luma;
#endif

#endif
END PATCH: DISABLE BT.709 colorspace conversion */ 
  gl_FragColor = vec4(vec3(m_yuvmat * yuv),m_alpha);
}

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- replace file squashfs-root/usr/share/kodi/system/shaders/GLES/2.0/gles_yuv2rgb_bob.frag

Code

/*
 *      Copyright (C) 2010-2013 Team XBMC
 *      http://xbmc.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with XBMC; see the file COPYING.  If not, see
 *  <http://www.gnu.org/licenses/>.
 *
 */

#version 100

precision highp float;
uniform sampler2D m_sampY;
uniform sampler2D m_sampU;
uniform sampler2D m_sampV;
varying vec2 m_cordY;
varying vec2 m_cordU;
varying vec2 m_cordV;
uniform float m_alpha;
uniform mat4 m_yuvmat;
uniform float m_stepX;
uniform float m_stepY;
uniform int m_field;
uniform mat3 m_primMat;
uniform float m_gammaDstInv;
uniform float m_gammaSrc;
uniform float m_toneP1;
uniform vec3 m_coefsDst;

void main()
{
  vec4 rgb;

  vec2 offsetY;
  vec2 offsetU;
  vec2 offsetV;
  float temp1 = mod(m_cordY.y, 2.0 * m_stepY);

  offsetY  = m_cordY;
  offsetU  = m_cordU;
  offsetV  = m_cordV;

  offsetY.y -= (temp1 - m_stepY / 2.0 + float(m_field) * m_stepY);
  offsetU.y -= (temp1 - m_stepY / 2.0 + float(m_field) * m_stepY) / 2.0;
  offsetV.y -= (temp1 - m_stepY / 2.0 + float(m_field) * m_stepY) / 2.0;

  float bstep = step(m_stepY, temp1);

  // Blend missing line
  vec2 below, below, below;

  belowY.x = offsetY.x;
  belowY.y = offsetY.y + (2.0 * m_stepY * bstep);
  belowU.x = offsetU.x;
  belowU.y = offsetU.y + (m_stepY * bstep);
  belowV.x = offsetV.x;
  belowV.y = offsetV.y + (m_stepY * bstep);

  vec4 rgbAbove;
  vec4 rgbBelow;
  vec4 yuvAbove;
  vec4 yuvBelow;

  yuvAbove = vec4(texture2D(m_sampY, offsetY).r, texture2D(m_sampU, offsetU).g, texture2D(m_sampV, offsetV).a, 1.0);
  rgbAbove = m_yuvmat * yuvAbove;
  rgbAbove.a = m_alpha;

  yuvBelow = vec4(texture2D(m_sampY, belowY).r, texture2D(m_sampU, belowU).g, texture2D(m_sampV, belowV).a, 1.0);
  rgbBelow = m_yuvmat * yuvBelow;
  rgbBelow.a = m_alpha;

  rgb = mix(rgb, rgbBelow, 0.5);
/* START PATCH: DISABLE BT.709 COLOR CONVERSION

#if defined(XBMC_COL_CONVERSION)
  rgb.rgb = pow(max(vec3(0), rgb.rgb), vec3(m_gammaSrc));
  rgb.rgb = max(vec3(0), m_primMat * rgb.rgb);
  rgb.rgb = pow(rgb.rgb, vec3(m_gammaDstInv));

#if defined(XBMC_TONE_MAPPING)
  float luma = dot(rgb.rgb, m_coefsDst);
  rgb.rgb *= tonemap(luma) / luma;
#endif

#endif
END PATCH: DISABLE BT.709 COLOR CONVERSION */
  gl_FragColor = rgb;
}

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- repackage squash filesystem, copy to sd card and umount

Code

 # mksquashfs squashfs-root/ SYSTEM -comp gzip
 # cp SYSTEM /some_mountpoints/SYSTEM
 # umount /dev/mmcblk0p1

that's all.

NB: This patch disables BT.709 color conversion that is slow on my mali 400 because it's using the pow math function.

Display More

Thank you. I followed these steps and everything looked to be ok, but when I tried to start the system I got an error message "failed to start login service". The system starts but a lot of services are no running (ssh, etc). I think I will have to back to the original image.