Posts by cosmos

  • [Odroid C2]: Spurious sounds (clicks / mechanized) during movie playback

    Odroid C2 with fresh official LE 8.2.2 installation, connected over HDMI to 10+ year Samsung.

    On my C2 at times I'm encountering either clicks (similar noise to the one heard when adjusting volume on headphones with a physical volume knob) or even worse sounds that becomes mechanized, when playing video material. These clicks are overimposed on the sound for some seconds and then go away. After some time they are heard again and again.

    In the latter case there seems to be a periodicity of around 5-6 minutes, I don't recall the exact time period. Audio sounds as though as quality starts deteriorating rapidly (ie there is an increasing quality loss) and then it sounds perfect again. As I said, this behaviour is exhibited every 5'-6'.

    Has anyone encountered something like that?

    PS: It is amazing that even though my RPi2 on the same position felt much slower in GUI navigation etc, its playback was flawless! Not a single hitch in audio. With the C2 I've not managed to have this decent audio quality. Adding the inability to have perfect 24p playback is starting to push its lack; I'm starting to consider giving it for an RPi3...

    PS2: Why is word ph enomenon (had to split it) censored?

  • Libreelec with Raspberry Pi 3 - Yellow lighting bolt on upper right corner

    buky is your system a Pi2 or 3?

    I have been using a Pi2 for years and I have never encountered any over-temperature warnings when playing back HEVC material. I do have a 3-piece heatsink set installed (2 on top and a copper at the bottom). Additionally I am using the (official) case with the upper part permanently open.

    Pi3 has increased temperatures, if you do not have means of active cooling (fan) I believe it would be easy to observe this.

  • [SOLVED][Odroid C2]: Repeated errors in dmesg, bug or feature?

    I am receiving a lot of errors constantly repeating every second or so on my Odroid C2/official LE 8.2.2, when running dmesg:

    Is this normal behavior?

  • Libreelec with Raspberry Pi 3 - Yellow lighting bolt on upper right corner

    No, it does not have anything to do with HEVC requirements, it is an undervoltage warning, see Under-voltage warnings - Raspberry Pi Forums

    It used to be a rainbow square icon, but it has been replaced with a yellow lightning bolt icon in more recent versions. Bad USB connections with the power charger can also produce this.

    You cannot use just any power supply. For RPi2 (RPi3) you need a power brick that can provide constantly a 2Amp (2.5Amp respectively) supply current. Having a supply that simply states 5V/2A doesn't simply cut it; I've seen a lot of power supplies (even brand ones) not being able to cope with the power needs of an RPi...

  • [Odroid C2]: MCE Remote does not work

    Hello,

    I've got an older MCE-type remote hanging around (Pinnacle PCTV). I know it worked just fine some time ago with my PC-based Openelec (at the time) Kodi. I've lost the IR sensor, but got an Odroid C2 device for which I made a fresh LE 8.2 install. C2 seems insensitive to me leisure watching needs (read: does not work). Is this a bug or a feature, ie should I perhaps switch/configure something first in order for this to work?

  • Odroid C2, auto rate switching and 24p-defying TV

    Additional info:

    * Under system -> display settings I am only given options to switch to either 50 or 60 Hz. No 24/30 options at all.

    * Googling around found some commands from ODROID • View topic - AMLOGIC & HDMI , I'm adding here outputs in case it might help here:

    Display Spoiler

    # cat /sys/class/amhdmitx/amhdmitx0/edid

    Rx Brand Name: SAM

    Rx Product Name: SAMSUNG

    Manufacture Week: 45

    Manufacture Year: 2006

    EDID Verison: 1.3

    EDID block number: 0x1

    blk0 chksum: 0x2f

    Source Physical Address[a.b.c.d]: 3.0.0.0

    native Mode 71, VIC (native 16):

    ColorDeepSupport b8, MaxTMDSClock 45

    16 31 4 19 5 20 3 18 22

    Audio {format, channel, freq, cce}

    {1, 1, 7, 7}

    Speaker Allocation: 1

    Vendor: 0xc03

    Vendor2: 0x0

    ColorMetry: 0x3

    SCDC: 0

    RR_Cap: 0

    LTE_340M_Scramble: 0

    Rx 3D Format Support List:

    {VIC FramePacking TopBottom SidebySide}

    { 16 0 0 0 }

    { 31 0 0 0 }

    { 4 0 0 0 }

    { 19 0 0 0 }

    { 5 0 0 0 }

    { 20 0 0 0 }

    { 3 0 0 0 }

    { 18 0 0 0 }

    { 22 0 0 0 }

    checkvalue: 0x2f9d0000

    # cat /sys/class/amhdmitx/amhdmitx0/rawedid

    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


  • Odroid C2, auto rate switching and 24p-defying TV

    I implemented the changes, as per your suggestions. There was no /storage/.kodi/userdata/disp_cap before I started. Running cat /sys/class/amhdmitx/amhdmitx0/disp_cap produced the following modes:

    I created the disp_cap file by using cat /sys/class/amhdmitx/amhdmitx0/disp_cap > /storage/.kodi/userdata

    /disp_cap and then edited the latter file to include 1080p24 and 1080p30 modes. disp_cap contained the following then:

    Note that I did not use any specific order in this file, should I?

    I restarted kodi with systemctl and tried to play some material. Trying both 30Hz and 23.97Hz material did not switch to the relevant mode. Instead Sammy stayed at 60Hz (as depicted when I press the samsung "info" button).

    What could/should I look for?

  • Odroid C2, auto rate switching and 24p-defying TV

    This is my first C2 install, after having some good 3 years on RPi2. I've got a Sammy TV which could support perfect 24p playback. On RPi2 unfortunately, the 24p mode was not detected. So I made a custom EDID file (there's a faq somewhere) and included the relevant option in LE's config.txt file to boot using this speficic EDID info. Doing so, my RPi2 happily switched between 60Hz, 50 Hz and 24Hz!

    After switching to C2 I am encountering the exact same situation: System happily boots up on 1080p60, however TV does not switch to 24p when 24p material is played. It sticks with 60Hz.

    Can I pull a similar trick on C2, like I used on RPi2? That is, trick C2 into thinking that TV can also support 1080p24? FYI, I have enabled the relevant option in the Kodi UI to auto-change rate.