Kubuntu installation on Minix Z83-4 (PC box based on Intel X5-Z8300 cpu and intel graphic)

I’m trying to install Linux in a Minix Neo Z83-4. It’s a small PC box based on Intel Atom x5-Z8300 Cherry Trail with 4Gb of memory and only 32Gb of eMMC as a hard drive. The box is released with windows 10, but performs too bad with that OS and I need to move to Linux.

I like a steady and responsive OS and don’t care graphic and the look, so I wish to go for any LTS of kubuntu/xubuntu/lubuntu.

Did tons of tentatives to install linux in this box. I also used a script by Linuxium called isorespin.sh to adapt the official releases to Atom or Apollo CPUs and inject some additional hardware support. But none of the releases original or respinned did work. Tried all k-, x-, l- LTS distro. The pc boot any iso until the boot menu, but once I select the ‘install kubuntu’ the screen blanks and everything stops. Run kubuntu does the same.

There is only a release of the standard Ubuntu distributed by Minix that can boot and install the os in this box.

Unfortunately my skills with linux are limited, and after two months of experiments, now I’m short of ideas on how to procede. I wonder if it is possible to take out parts of the working standard ubuntu ISO release and use them in a kubuntu ISO to create a working kubuntu distribution or if someone is able to suggest me a working solution.

Thanks for any help or suggestion you may give me.

Intel UHD 620 not stable after Ubuntu 18.04.2 HWE update

I’m experiencing various different problems after updating to 18.04.2 with HWE: flickering, fail to suspend, freezes, crashes, CPU failure…

I ran 18.10 on this Dell Latitude 7490 laptop for the last 6 months without any problems, but the latest update/-s seem to cause some issues.

inxi -G  Graphics:  Card: Intel UHD Graphics 620 bus-ID: 00:02.0            Display Server: x11 (X.Org 1.20.4 ) driver: i915            Resolution: 1920x1080@60.01hz            OpenGL: renderer: Mesa DRI Intel UHD Graphics 620 (Kabylake GT2)            version: 4.5 Mesa 19.0.2 Direct Render: Yes 

Since the new HWE update comes with updates for Xserver, Wayland, Mesa and other updated graphics drivers, I have a hard time narrowing down what is causing the issues, except that it is related to the recent updates.

Changelog: http://changelogs.ubuntu.com/changelogs/pool/main/l/linux-hwe/linux-hwe_4.18.0-25.26~18.04.1/changelog

I tried a fresh install of 18.04 but displays the same problems, and gets worse if running the latest updates after install.

dmesg logs doesn’t provide much with dmesg -level=err and dmesg -b-1 between suspend/hibernation failures, expect FIFO UNDERRUN errors which shouldn’t cause this many problems.

[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun

Currently reverted back to to a stable system on 16.04 with xserver-xorg-video-intel-hwe-16.04.

Graphics:  Card: Intel UHD Graphics 620            Display Server: X.Org 1.19.6 drivers: (unloaded: fbdev,vesa) Resolution: 1920x1080@60.01hz            GLX Renderer: Mesa DRI Intel UHD Graphics 620 (Kabylake GT2) GLX Version: 3.0 Mesa 18.0.5 

Anyone know of any standing issues for the Intel UDH 620 that may cause these issues, or any ideas how to run a stable system on 18.04 (quite enjoyed 18.10 and being back on gnome) with this setup?

Thanks.

Problemas com vetorização usando o compilador de C++ da intel no Visual Studio

O código abaixo é fruto de um trabalho que estou desenvolvendo, basicamente é a multiplicação de uma matriz quadrada, porém, os resultados que eu tive paralelizando a aplicação com a API OpenMP foram superiores aos resultados que obtive usando SIMD da mesma API. O que estou fazendo de errado? é a sintaxe? Algumas informações que podem ser pertinente em identificar o problema: Estou usando o compilador da intel atravéz da IDE do visual studio, o OpenMP do visual studio é versão 2.0 (que não suporta SIMD) mas acho que é o 4.0 que vem com o compilador que está sendo usado. Enfim, pra mim é uma atividade nova (processamento paralelo) então se puderem esclarecer as coisas agradeceria de coração. Segue o código:

#include "stdafx.h" 

include

include

include

using namespace std;

int lin = 800, col = 800; // Valores de linha e coluna

int main() {

// -------------------------------------- // Cria a matriz 1 int** m1 = new int*[lin]; for (int i = 0; i < lin; ++i)     m1[i] = new int[col]; // --------------------------------------   // -------------------------------------- // Cria a matriz 2 int** m2 = new int*[lin]; for (int i = 0; i < lin; ++i)     m2[i] = new int[col]; // --------------------------------------   // -------------------------------------- // Cria a matriz resposta int** res = new int*[lin]; for (int i = 0; i < lin; ++i)     res[i] = new int[col]; // --------------------------------------  cout << "criou matrizes" << endl; 

//PREENCHE m1 e m2 // —————————————————————————-

// BLOCO PARALELO

pragma omp simd collapse (2)

    for (int i = 0; i < lin; ++i) {         for (int j = 0; j < lin; ++j) {             m1[i][j] = (i + 1);         }     } 

// FIM DO BLOCO PARALELO

// BLOCO PARALELO

pragma omp simd collapse (2)

    for (int i = 0; i < lin; ++i) {         for (int j = 0; j < lin; ++j) {             m2[i][j] = (i + 1);         }     } 

// FIM DO BLOCO PARALELO

cout << “preencheu” << endl;

// —————————————————————————-

//faz a magica rolar  clock_t timer = clock(); //valores de marcação de tempo   // ---------------------------------------------------------------------------- cout << "iniciou" << endl; 

pragma omp simd collapse (2)

for (int i = 0; i < lin; i++) {     for (int j = 0; j < lin; j++)     {         res[i][j] = 0;         for (int k = 0; k < lin; k++)             res[i][j] += m1[i][k] * m2[k][j];     } } cout << "finalizou" << endl; // ----------------------------------------------------------------------------  //marca tempo final e exibe timer = clock() - timer; cout << "Programa Finalizado em " << ((float)timer) / CLOCKS_PER_SEC << " Segundos" << endl;  system("Pause"); 

}

// This code is contributed // by Soumik Mondal

Bodhi/Lubuntu 18.04/19.04 – Error loading driver for Intel Centrino Advanced-N 6235 Wireless – Device not ready / Failed to load firmware chunk!

Trying to get something working on a SFF box for CNC control. Can’t get wireless to work under Bodhi 5.0.0 or Lubuntu 18.04, or Lubuntu 19.04. (Hardware is a LogicSupply AG150)

I’ve verified that I’m using the latest driver version for the hardware from https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi

The only other instance of the exact same problem I found is for completely different hardware/os. https://community.nxp.com/thread/336121

I’ve also tried the ‘well-known work-around’ from https://askubuntu.com/a/462410/970126 of

sudo rmmod iwlwifi sudo modprobe iwlwifi 11n_disable=1 

Here are the wireless-info logs from all 3 installs.

  • Bodhi 5.0.0 https://paste.ubuntu.com/p/NQ2WMpdhcc/
  • Lubuntu 18.04 https://paste.ubuntu.com/p/J4SJsZdM7g/
  • Lubuntu 19.04 https://paste.ubuntu.com/p/Z2wW26sfv2/

Where do I look or what do I try next to get this working?

I can’t enable Intel turbo boost

I used all the solutions from other threads and none worked. I tried

echo "0" | sudo tee /sys/devices/system/cpu/intel_pstate/no_turbo  

And it says operation not permitted. I have tried changing the ownership on every folder in the path and still nothing. I tried manually changing the 1 to a 0 I’m the text editor after giving myself permission bit still nothing.

Site accessed by Intel Mac OS X and iPhone OS at the same time

I have created my own logging in a PHP script on my website. While doing this, I record a timestamp, IP address and HTTP referrer. I notice that I often have two hits as follows where it looks like an iPhone and a Mac are accessing my site at roughly the same time from the same IP address. Can someone explain what is happening here?

[‘2019-06-23 02:47:26pm’, ‘172.117.xxx.xxx’, ‘Lakewood, California, United States’, ”, ‘Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/605.1.15 (KHTML, like Gecko)’]

[‘2019-06-23 02:47:28pm’, ‘172.117.xxx.xxx’, ‘Lakewood, California, United States’, ”, ‘Mozilla/5.0 (iPhone; CPU iPhone OS 12_1_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0 Mobile/15E148 Safari/604.1’]

[‘2019-06-23 03:09:04pm’, ‘95.44.xxx.xxx’, ‘Drogheda, Louth, Ireland’, ”, ‘Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/605.1.15 (KHTML, like Gecko)’]

[‘2019-06-23 03:09:07pm’, ‘95.44.xxx.xxx’, ‘Drogheda, Louth, Ireland’, ”, ‘Mozilla/5.0 (iPhone; CPU iPhone OS 12_1_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0 Mobile/15E148 Safari/604.1’]

change hotkey (shortcut) for Intel Graphic control panel 18.04

i need to change reserved hotkey in Intel graphic so i can use them in PyCharm . by default Ctrl+Alt+Right/Left used in Intel Graphic so i need to change them in Ubuntu 18.04 LTS.in windows simply can open Intel graphic control panel and change them but i can’t found any clear way in Ubuntu.as i’m a new in Linux please explain somehow to get to know.

thank you