Posts by darksky

darksky · Which kernel video driver is in use? darksky December 23, 2023 at 6:43 PM

I am running LibreELEC-Generic.x86_64-11.0-nightly-20231218-f33f513 on an Intel N100 mini PC. How can I determine which kernel driver is in use for video? I do not see the i915 module in lsmod's output for example.

Code

# lsmod
Module                  Size  Used by
8021q                  28672  0
bnep                   24576  2
ntfs3                 212992  1
wl                   6389760  0
snd_hda_codec_hdmi     65536  1
snd_hda_codec_realtek   139264  1
snd_hda_codec_generic    73728  1 snd_hda_codec_realtek
btusb                  61440  0
ledtrig_audio          16384  1 snd_hda_codec_generic
btmtk                  16384  1 btusb
btrtl                  28672  1 btusb
iwlwifi               364544  0
btbcm                  24576  1 btusb
btintel                36864  1 btusb
bluetooth             667648  13 btrtl,btmtk,btintel,btbcm,bnep,btusb
snd_hda_intel          45056  0
cfg80211              782336  2 wl,iwlwifi
x86_pkg_temp_thermal    20480  0
snd_intel_dspcfg       24576  1 snd_hda_intel
intel_rapl_msr         20480  0
intel_powerclamp       20480  0
snd_hda_codec         118784  4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
ecdh_generic           16384  1 bluetooth
intel_rapl_common      28672  1 intel_rapl_msr
ecc                    32768  1 ecdh_generic
snd_hda_core           77824  5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hwdep              16384  1 snd_hda_codec
idma64                 20480  0
rfkill                 28672  5 bluetooth,cfg80211
pkcs8_key_parser       16384  0
fuse                  122880  1
dmi_sysfs              20480  0

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/edit

Ah, I guess it's the i915:

Code

# dmesg|grep -i i915
[    0.381377] i915 0000:00:02.0: vgaarb: deactivate vga console
[    0.381455] i915 0000:00:02.0: [drm] Using Transparent Hugepages
[    0.381760] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
[    0.383448] i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/adlp_dmc_ver2_16.bin (v2.16)
[    0.391698] i915 0000:00:02.0: [drm] GuC firmware i915/tgl_guc_70.bin version 70.5.1
[    0.391702] i915 0000:00:02.0: [drm] HuC firmware i915/tgl_huc.bin version 7.9.3
[    0.396541] i915 0000:00:02.0: [drm] HuC authenticated
[    0.397035] i915 0000:00:02.0: [drm] GuC submission enabled
[    0.397036] i915 0000:00:02.0: [drm] GuC SLPC enabled
[    0.397348] i915 0000:00:02.0: [drm] GuC RC: enabled
[    0.423902] [drm] Initialized i915 1.6.0 20201103 for 0000:00:02.0 on minor 0
[    0.456739] fbcon: i915drmfb (fb0) is primary device
[    0.518713] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device

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darksky · RPi4 LE 10.0.0 cannot play rtsp stream darksky October 5, 2021 at 2:22 PM

I didn't realize that was an unsupported resolution. Thanks for pointing that out.

darksky · RPi4 LE 10.0.0 cannot play rtsp stream darksky October 5, 2021 at 1:26 PM

I created /storage/videos/driveway.strm which simply contains the path to a security camera's rtsp stream. This file plays under VLC or under Kodi on x86_64 but it does not play on LE 10.0.0 on RPi4. Is there a setting that needs to be enabled? Something unique about the stream not playing.

Debug log.

darksky · Where is the built image? darksky September 13, 2020 at 1:27 AM

I followed the wiki step to build from git, but I am unclear where the build image is under the dirtree. What is the expected file name? Also, is there an update image as well as a clean install image?

EDIT: I see now, they reside in the target directory.

darksky

I took the file from here and replaced it but I still have the same limitation of 1920x1280.

I reimaged the card entirely using LibreELEC-RPi4.arm-9.2.5 and I have 4k available now. Then I updated to LibreELEC-RPi4.arm-9.80-nightly-20200904-89c7562 but only get a black screen. This was a known problem with older milhouse builds. I will search and see if I can find a solution or start a new thread.

EDIT: [BUG] · Issue #4523 · LibreELEC/LibreELEC.tv · GitHub

darksky

I am using LibreELEC-RPi4.arm-9.80-nightly-20200904-89c7562 on an RPi4 with a 4k monitor but seem to be stuck @ 1920x1080 from Display>Resolution. My /boot/config.txt does not limit it there so I am wondering where else a limit could be introduced.

Code

# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2009-2014 Stephan Raue (stephan@openelec.tv)
# Copyright (C) 2016-present Team LibreELEC (https://libreelec.tv)
################################################################################
# Bootloader configuration - config.txt
################################################################################


################################################################################
# Memory (System/GPU configuration )
################################################################################


# Default GPU memory split
gpu_mem=76


################################################################################
# For overclocking and various other settings, see:
# https://www.raspberrypi.org/documentation/configuration/config-txt.md
################################################################################
# Set 'force_turbo=1' to disable dynamic overclocking and enable overclocking always.
force_turbo=0


# Force HDMI even if unplugged or powered off
# hdmi_force_hotplug=1


# Doesn't sent initial active source message.
# Avoids bringing CEC (enabled TV) out of standby and channel switch when
# rebooting.
hdmi_ignore_cec_init=1


################################################################################
# End of default configuration
################################################################################


################################################################################
# Include distribution specific config file if it exists.
################################################################################
[all]
include distroconfig.txt
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2009-2014 Stephan Raue (stephan@openelec.tv)
# Copyright (C) 2016-present Team LibreELEC (https://libreelec.tv)
################################################################################
# Bootloader configuration - config.txt
################################################################################


################################################################################
# Memory (System/GPU configuration )
################################################################################


# Default GPU memory split - at least 288M is needed for some 4k HEVC files
#gpu_mem=320


################################################################################
# For overclocking and various other settings, see:
# https://www.raspberrypi.org/documentation/configuration/config-txt.md
################################################################################
# Set 'force_turbo=1' to disable dynamic overclocking and enable overclocking always.
force_turbo=0


# Force HDMI even if unplugged or powered off
hdmi_force_hotplug=1


# Doesn't sent initial active source message.
# Avoids bringing CEC (enabled TV) out of standby and channel switch when
# rebooting.
hdmi_ignore_cec_init=1


################################################################################
# End of default configuration
################################################################################


################################################################################
# Include distribution specific config file if it exists.
################################################################################
[all]
include distroconfig.txt

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darksky

Great idea, thank you.

darksky

To transplant the Raspbian kernel to another distro like Arch ARM, I found I could copy from Raspbian, /boot/kernel7.img and the modules directory modules/4.14.90-v7+ to the Arch ARM image and it would boot and run fine. I wanted to do the same with the LE kernel so from LE's /boot, I copied kernel.img to Arch ARM's /boot and renamed it to kernel7.img and also copied the modules over, but found that it wouldn't boot.

The error displayed was:

Code

*** Error in mount_flash: mount_part: Unknown filesystem ***
### Starting debugging shell for boot step: mount_flash... type exit to quit###

Is there any way I can take the LE kernel and modules and just boot to it on Arch ARM?

darksky

Thank you! Try as I might, I cannot get a modified version of your service to work on my box. It seems to coredump.

Code

[Unit]
Description=Kodi Media Center
After=network-online.target graphical.target
Requires=graphical.target
Wants=network-online.target


[Service]
User=kodi
Group=kodi
Environment=__GL_YIELD=USLEEP
Environment=DISPLAY=:0.0
Environment=WAYLAND_DISPLAY=wayland-0
Environment=SDL_MOUSE_RELATIVE=0
Environment=KODI_HOME=/var/lib/kodi/
#EnvironmentFile=-/run/libreelec/kodi.conf
#EnvironmentFile=-/run/libreelec/debug/kodi.conf
#ExecStartPre=-/usr/lib/kodi/kodi-config
#ExecStart=/usr/lib/kodi/kodi.sh --standalone -fs $KODI_ARGS $KODI_DEBUG
ExecStart=/usr/bin/kodi-standalone
ExecStop=/bin/kill -TERM $MAINPID
#ExecStopPost=-/usr/lib/kodi/kodi-safe-mode
#TimeoutStopSec=5
#Restart=always
#RestartSec=2
#StartLimitInterval=0
#LimitNOFILE=16384


[Install]
WantedBy=graphical.target

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When I try to start it:

Code

● kodi2.service - Kodi Media Center
Loaded: loaded (/usr/lib/systemd/system/kodi2.service; disabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Mon 2019-01-07 17:17:00 EST; 1min 30s ago
Process: 982 ExecStop=/bin/kill -TERM $MAINPID (code=exited, status=1/FAILURE)
Process: 874 ExecStart=/usr/bin/kodi-standalone (code=exited, status=0/SUCCESS)
Main PID: 874 (code=exited, status=0/SUCCESS)


Jan 07 17:16:59 orion kodi-standalone[874]: ERROR: Unable to create application. Exiting
Jan 07 17:16:59 orion kodi-standalone[874]: /usr/bin/kodi: line 219:   919 Segmentation fault      (core dumped) ${KODI_BINARY} $SAVED_ARGS
Jan 07 17:16:59 orion kodi-standalone[874]: Crash report available at /var/lib/kodi/kodi_crashlog-20190107_171659.log
Jan 07 17:16:59 orion kodi-standalone[874]: ERROR: Unable to create application. Exiting
Jan 07 17:17:00 orion kodi-standalone[874]: /usr/bin/kodi: line 219:   954 Segmentation fault      (core dumped) ${KODI_BINARY} $SAVED_ARGS
Jan 07 17:17:00 orion kodi-standalone[874]: Crash report available at /var/lib/kodi/kodi_crashlog-20190107_171700.log
Jan 07 17:17:00 orion systemd[1]: kodi2.service: Control process exited, code=exited status=1
Jan 07 17:17:00 orion kodi-standalone[874]: /usr/bin/kodi --standalone  has exited in an unclean state 3 times in the last 2 seconds.
Jan 07 17:17:00 orion kodi-standalone[874]: Something is probably wrong
Jan 07 17:17:00 orion systemd[1]: kodi2.service: Failed with result 'exit-code'.

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The kodi log:

Code

...
17:16:59.248 T:140122534957952 NOTICE: Default Video Player: VideoPlayer
17:16:59.248 T:140122534957952 NOTICE: Default Audio Player: paplayer
17:16:59.248 T:140122534957952 NOTICE: Disabled debug logging due to GUI setting. Level 0.
17:16:59.248 T:140122534957952 NOTICE: Log level changed to "LOG_LEVEL_NORMAL"
17:16:59.250 T:140122534957952 NOTICE: Running database version Addons27
17:16:59.250 T:140122534957952 ERROR: ADDONS: manifest missing
17:16:59.250 T:140122534957952 ERROR: ADDONS: Failed to read manifest
17:16:59.250 T:140122534957952 FATAL: CServiceManager::InitStageTwo: Unable to start CAddonMgr

darksky

I am using kodi-standalone-service on Arch Linux to start Kodi. How does LE start Kodi on x86_64 Linux? I want to see if there is a more efficient/different/more flexible systemd service I can use.

darksky

Quote from HiassofT

These innovations / optimizations aren't from us, they come from popcornmix and other people from RPi.

If you want to build kodi and ffmpeg with all the optimizations it's probably easiest to just use his newclock5 branch (that's the current development tree). In LibreELEC we're doing the same, only difference is that we split out the ffmpeg patches to a separate package (but the changes are the same as in the newclock5 branch).

I'd recommend sticking to the tags in the repo (unless you want to track bleeding edge stuff, like in milhouse builds), in LE 8.90.005, which is based on Kodi Leia beta2, we built from this tag: newclock5_18.0b2-leia

This is great info to have. I will give that a try, thank you.

darksky

Quote from Iridium

Would it not be easier to just use the latest 8.90.005 RPi build which includes most usable patches.

My goal is to build kodi on a different distro using the innovations the LibreElec team have created, for example, the HEVC support on RPi3.

darksky

FYI - One can get gcc to share specific flags for hardware like this:

Code

gcc -c -Q -march=native --help=target

For more conveniently, put them into a line line:

Code

gcc '-###' -E - -march=native 2>&1 | sed -r '/cc1/!d;s/(")|(^.* - )//g'

darksky

LibreELEC-RPi2.arm-9.0-Milhouse-20180923210325-#0923-g442e2de on an RPi3 can play a 2.8kb/s HEVC video file flawlessly. When I compare it to my own build of Kodi 18.0b2 on the same hardware, the video playback is unwatchable/choppy. Is it solely the ffmpeg version used in LibreELEC, and if so, is this an ffmpeg fork I can download when I build Kodi on Arch ARM?

FYI - I build like this so I would think inserting the ffmpeg version would be trivial:

Code

cmake -DCMAKE_INSTALL_PREFIX=/usr \
-DCMAKE_INSTALL_LIBDIR=/usr/lib \
-DCMAKE_PREFIX_PATH=/opt/vc \
-DCORE_PLATFORM_NAME=rbpi \
...
-DFFMPEG_URL="/ffmpeg-4.0.2-Leia-Alpha3.tar.gz" \
-DENABLE_INTERNAL_FFMPEG=ON \
...

EDIT: is it as simple as pulling the single patch linked in this thread and building? Further, are all 4 patches shown here recommended or will the third one be sufficient?

darksky

Thank you, exactly what I was looking for.

darksky

Is there a text file somewhere that will detail the cmake step (all the options) that are used for the ODROID-C2 version of LibreElec? I'd like to compare them to how the kodi package for ODROID-C2 is built on Arch ARM. Thanks!

For example, currently, this is the cmake step (just wondering if there are some hardware-specific optimizations that could be enabled, etc):

Code

cmake -DCMAKE_INSTALL_PREFIX=/usr \
-DCMAKE_INSTALL_LIBDIR=/usr/lib \
-DENABLE_EVENTCLIENTS=ON \
-DLIRC_DEVICE=/run/lirc/lircd \
-DENABLE_AML=ON \
-DENABLE_OPENGL=OFF \
-DENABLE_OPENGLES=ON \
-DENABLE_PULSEAUDIO=OFF \
-DENABLE_VAAPI=OFF \
-DENABLE_VDPAU=OFF \
-DENABLE_X11=OFF \
../"xbmc-$_commit"/project/cmake

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Posts by darksky

Which kernel video driver is in use?

RPi4 LE 10.0.0 cannot play rtsp stream

RPi4 LE 10.0.0 cannot play rtsp stream

Where is the built image?

RPi4 stuck in 1920x1080p on a 4k monitor

RPi4 stuck in 1920x1080p on a 4k monitor

How can I copy the LibreELEC kernel to boot on another distro for RPi4

How can I copy the LibreELEC kernel to boot on another distro for RPi4

Learn from LE for a non-LE system ... how to start kodi with systemd on x86_64 linux

Learn from LE for a non-LE system ... how to start kodi with systemd on x86_64 linux

HEVC/x265 support in Libreelec on RPi3 is amazing ... where can I d/l ffmpeg patches

HEVC/x265 support in Libreelec on RPi3 is amazing ... where can I d/l ffmpeg patches

-march or TARGET_CPU - where to set it.

HEVC/x265 support in Libreelec on RPi3 is amazing ... where can I d/l ffmpeg patches

Where can I find out how kodi is configured for LibreElec for ODROID-C2

Where can I find out how kodi is configured for LibreElec for ODROID-C2