Grigory

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About Grigory

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  1. Hello Folks, Seems like problem was due to bad power supply... But it is really strange because with official "OranagePi Prime Ubuntu Desktop V2.1" build anything is working fine... Maybe some slightly more gentle power settings? Anyway, right now with 2.5 Amps power supply all previous tested builds are working fine. Thanks a lot for your support! Thanks, Grigory.
  2. Hello Folks, Seems like it is very strange behaviour with last Armbian at the OrangePi Prime board. It is continuiusly rebooting after power is on. Green led near the HDMI output is on, then after few seconds board is rebooting (led is off), and again. Board: OrangePi Prime SD Cards (the same results on both): SanDisk Extreme Pro microSDXC Class 10 UHS Class 3 V30 A1 64GB Kingston microSDHC Class 10 8GB Compilation environment: VMware Workstation 14.1.3 with Ubuntu Bionic installed Linux ubuntu-bionic 4.15.0-44-generic #47-Ubuntu SMP Mon Jan 14 11:26:59 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic All steps are applied: https://docs.armbian.com/Developer-Guide_Build-Preparation/ For SD formatting tool is used: SD Card Formatter 5.0.1 For build image flashing tools are used (the same results on both): Win32 DiskImager 1.0 balenaEtcher 1.4.9 Tested builds of the Armbian where problem is observed: Official server release for OrangePi Prime (yesterday was "Armbian_5.69_Orangepiprime_Debian_stretch_next_4.19.13.img"): https://www.armbian.com/orange-pi-prime/ https://dl.armbian.com/orangepiprime/Debian_stretch_next.7z Manually compiled builds using compilation env described before (all builds are compiled with default build options): Armbian_5.73_Orangepiprime_Ubuntu_bionic_next_4.19.17.img Armbian_5.73_Orangepiprime_Ubuntu_xenial_next_4.19.17.img Armbian_5.74_Orangepiprime_Debian_stretch_next_4.19.17.img Armbian_5.74_Orangepiprime_Ubuntu_bionic_next_4.19.17.img Armbian_5.74_Orangepiprime_Ubuntu_xenial_next_4.19.17.img This build was able to start successfully: "Armbian_5.72_Orangepiprime_Ubuntu_bionic_next_4.19.13.img" But when I've started cpu load test it is freeze immedialetely. Script on python that was used for cpu load testing: # Produces load on all available CPU cores from multiprocessing import Pool from multiprocessing import cpu_count def f(x): while True: x*x if __name__ == '__main__': processes = cpu_count() print 'utilizing %d cores\n' % processes pool = Pool(processes) pool.map(f, range(processes)) Board is fully functional and working. Was tested with official "OranagePi Prime Ubuntu Desktop V2.1" build: http://www.orangepi.org/downloadresources/orangepiprime/orangepiprime_90a173615c3d08cc1efb22.html ubuntu_desktop_xfce_prime_V0_1.img With this build board is successfully start and running cpu loading script without any problems. Can you please lake a look into this problem? Thanks, Grigory.