Posts by andrius

  • 1280x800 resolution on Intel BayTrail minipc

    Hello,

    I'm trying to set native resolution when viewing on my BenQ MW516 projector.

    Initially it starts with 1920x1080 resolution and does not have 1280x800 in its settings.

    After trying this:

    Code
    xrandr --newmode "1280x800_75.00"  106.50  1280 1360 1488 1696  800 803 809 838 -hsync +vsync
xrandr --addmode eDP1 "1280x800_75.00"

    I can set this resolution, but the projector says the resolution it gets from pc is 1280x1024, and the optimal is 1280x800.

    This trick previously worked on my other PCs, with intel or nvidia GPUs. How to make it work on this minipc?

    (pp_365007.html?wid=1527929)

    Libreelec version is:

    LibreELEC (official): 8.2.5 (Generic.x86_64)

    Code
    minipc:~ # lspci 
00:00.0 Host bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register (rev 0f)
00:02.0 VGA compatible controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display (rev 0f)
00:14.0 USB controller: Intel Corporation Atom Processor Z36xxx/Z37xxx, Celeron N2000 Series USB xHCI (rev 0f)
00:1a.0 Encryption controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine (rev 0f)
00:1f.0 ISA bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Power Control Unit (rev 0f)
    Code
    minipc:~ # dmesg | paste
http://ix.io/1wbV

    I do not know, why it says eDP1, because the projector is connected to its VGA output.

    Andrius

  • No audio on intel baytrail minipc

    I also tried the Asus-T100 firmware you referenced previously - the result the same as with default firmware included in hiassoft build - after alsaucm cofinguration I get a working speaker-test, but distorted sound and unstable Kodi.

    Out of curiosity, I also tried to reboot with an empty firmware file:

    Code
    minipc:~ # rm .config/firmware/intel/fw_sst_0f28.bin 
minipc:~ # touch .config/firmware/intel/fw_sst_0f28.bin

    As a result I got dmesg with some firmware loading errors (as expected). Also, video playing was smoth - without any jumps or gui appearances.

    But after stopping the movie, it froze at some moment. Maybe some kernel/OS issue?

    My ideas/questions for now are these:

    1) is it possible to get Kodi talk to audio port just like speaker-test does - using 16 bits?

    2) maybe it will be easier to buy an USB audio adapter and make Kodi talk to it instead of baytrail audio? Is it easy to direct Kodi sound to usb? Is there a known list of (cheap) working usb sound cards?

    Kind regards

    Andrius

  • No audio on intel baytrail minipc

    Second try - with file from windows driver package: I5qudong/DriverPackage/Installer/PlatformInstaller/Drivers/audio/realtek_fw_sst.bin

    speaker-test does not play anything at all - no clicks. Also, there are some errors in dmesg output. The pc probably did not like the firmware...

  • No audio on intel baytrail minipc

    First try - with local fw_sst_0f28_ssp0.bin:

    Code
    minipc:~ # cp /lib/firmware/intel/fw_sst_0f28_ssp0.bin .config/firmware/intel/fw_sst_0f28.bin
minipc:~ # ls -la .config/firmware/intel
total 696
drwxr-xr-x    2 root     root          4096 Dec 27 12:41 .
drwxr-xr-x    4 root     root          4096 Dec 22 18:19 ..
-rw-r--r--    1 root     root        701622 Dec 27 12:41 fw_sst_0f28.bin
minipc:~ # reboot
    Code
    minipc:~ # cat /storage/.config/autostart.sh 
alsaucm -n -b - <<EOM
open bytcr-rt5640
reset
set _verb HiFi
set _enadev Headphones
EOM
minipc:~ # aplay pcm\ stereo\ 24\ bit\ 48kHz.wav 
Playing WAVE 'pcm stereo 24 bit 48kHz.wav' : Signed 24 bit Little Endian in 3bytes, Rate 48000 Hz, Stereo

    Does not play any music, I can only hear two little "clicks": when starting to play and also when finishing to play.

    Same result - no music, just small "clicks".

  • No audio on intel baytrail minipc

    Quote from HiassofT

    An interesting test would be playing a 24bit 48kHz stereo WAV file with aplay. If there's a driver / firmware bug it should give the same (or similar) distortions as kodi.

    Yes, you're right. I downloaded a sample from here: audiotestfiles.zip

    I tried aplay audiotestfiles/sourceCode\sourceCode/WAV/PCM 24 bit/pcm stereo 24 bit 48kHz.wav and it sounded very quietly, way too fast and without any stereo effect.

    An additional problem with Kodi is if I do not stop it after booting libreelec, it makes the system freeze - the picture on the screen stays static as it was before the freeze, mouse pointer does not move, ssh on port 22 not responding. Can it happen because of audio fw/driver issues?

    I'll try with different firmware files and will post the results here.

    Andrius

  • No audio on intel baytrail minipc

    Hello,

    today I tried another one headphone and it seems, that speaker-test now works as expected (after putting alsaucm config into autostart.sh). The other headphones probably had some problems with correct contacts...

    But Kodi on this Hiassoft build spoils the sound - after systemctl start kodi the earphones start getting white noise. Also, kodi seems unstable - it struggles to play movies and music. It plays music too fast and very very quietly, it jumps a second here and there, it loops movies unexpectedly. Is there any way to use the kernel with firmware loading from the build like this, but take the kodi from a more stable branch?

    Andrius

  • No audio on intel baytrail minipc

    Before getting any sound I should do:

    Code
    alsaucm -n -b - <<EOM
open bytcr-rt5640
reset
set _verb HiFi
set _enadev Headphones
EOM
    Quote

    Out of curiosity: what do these "beeps" sound like? speaker-test -t sine should output a 440Hz sine alternating on left and right channels.

    By seeing 'sine' I thought it should make some varying pitch sound. Only after a while I remembered any sound is some kind of sine :)

    Those beeps are fixed-pitch sounds in both ears at the same time. If I set -c 1 then it plays same beeps in both ears, just quieter.

    I also tested with some mono wav from internet:

    http://www.mauvecloud.net/sounds/pcm1644m.wav

    This plays it loud: speaker-test -c 2 -r 44100 -t wav -w /storage/pcm1644m.wav

    This plays it quiet: speaker-test -c 1 -r 44100 -t wav -w /storage/pcm1644m.wav

    The sound is correct (laugh), just on both ears instead of one.

    Also, when I try to play something with kodi, the sound output gets some garbage - some high-pitched distortion of the original sound.

    I did not try any alternative firmware. Maybe I'll find some time later today.

    Andrius

  • No audio on intel baytrail minipc

    "Speaker" does not produce any sound on my headphones.

    "Headphones" always makes beeps in both ears at the same time, even though the speaker-test says "0 - Front Left" or "1 - Front Right".

    Movie playing in Kodi just makes some strange noise.

    But the beeps are definitely a big progress when comparing with the complete silence :)

    Any ideas - what can I try now?

    Vielen Dank Matthias!

    Andrius

  • No audio on intel baytrail minipc

    _enadev and _disdev give me some errors.

    I'll try to read some docs about them.

  • No audio on intel baytrail minipc

    Still no sound after speaker-test.

    How do I try different firmware?

    Andrius

    minipc:~ # dmesg | paste

    http://ix.io/1wka

    minipc:~ # cat /storage/.kodi/temp/kodi.log | paste

    http://ix.io/1wkb

  • No audio on intel baytrail minipc

    Still no sound output.

    dmesg: http://ix.io/1wdi

    kodi.log: kodilog20181217.zip

    Andrius

  • No audio on intel baytrail minipc

    I unzipped the windows driver package I got for this device. The directory /DriverPackage/Installer/PlatformInstaller/Drivers/audio/ contains the following files:

    isstrtc.cat

    isstrtc.inf

    isstrtc.sys

    realtek_fw_sst.bin

    rtii2sac.cat

    rtii2sac.inf

    RTII2SAC.sys

    Maybe this realtek_fw_sst.bin can useful?