ubuntu News - Page 85 of 180 - CNX Software

July 17, 2019July 17, 2019 by Jean-Luc Aufranc (CNXSoft) - 39 Comments

Checking Out Machine Check Exception (MCE) Errors in Linux

I recently reviewed ODROID-H2 with Ubuntu 19.04, and noticed some errors messages in the kernel log of the Intel Celeron J4105 single board computer while running SBC-Bench benchmark:

[180422.405294] mce: [Hardware Error]: Machine check events logged
[180425.656449] mce: [Hardware Error]: Machine check events logged
[180483.582825] mce_notify_irq: 17 callbacks suppressed
[180483.582827] mce: [Hardware Error]: Machine check events logged
[180484.991484] mce: [Hardware Error]: Machine check events logged
[180594.700684] mce_notify_irq: 13 callbacks suppressed
[180594.700686] mce: [Hardware Error]: Machine check events logged
[180858.202115] mce: [Hardware Error]: Machine check events logged
[181178.047031] mce: [Hardware Error]: Machine check events logged

[180422.405294] mce: [Hardware Error]: Machine check events logged

[180425.656449] mce: [Hardware Error]: Machine check events logged

[180483.582825] mce_notify_irq: 17 callbacks suppressed

[180483.582827] mce: [Hardware Error]: Machine check events logged

[180484.991484] mce: [Hardware Error]: Machine check events logged

[180594.700684] mce_notify_irq: 13 callbacks suppressed

[180594.700686] mce: [Hardware Error]: Machine check events logged

[180858.202115] mce: [Hardware Error]: Machine check events logged

[181178.047031] mce: [Hardware Error]: Machine check events logged

I did not know what do make of those errors, but I was told I would get more details with mcelog which can be installed as follows:

sudo apt install mcelog

1	sudo apt install mcelog

There’s just one little problem: it’s not in Ubuntu 19.04 repository, and a bug report mentions mcelog is not deprecated, and remove from Ubuntu 18.04 Bionic onwards. Instead, we’re being told the mcelog package functionality has been replaced by rasdaemon. But before looking into the utilities, let’s find out what Machine Check Exception (MCE) is all about from ArchLinux Wiki: A machine check exception (MCE) is an error generated by the CPU when the CPU detects that a hardware error or failure has occurred. Machine check exceptions (MCEs) can occur for a variety […]

July 14, 2019August 4, 2019 by Jean-Luc Aufranc (CNXSoft) - 19 Comments

ODROID-H2 Review – Part 2: Ubuntu 19.04

After many months of delays due to Intel not mass-producing Gemini Lake processors, Hardkernel started selling ODROID-H2 again, more exactly ODROID-H2 Rev. B, and the end of last month, and the company sent me a full kit for evaluation. You can check out ODROID-H Rev. B with Type 3 case and the assembly instructions in the first part of the review. I’ve now had time to play with the board using the pre-installed Ubuntu 19.04 operating systems so I’ll report my experience in this second part. Note that ODROID-H2 does not rely on a custom version of Ubuntu, and instead you can download and flash Ubuntu 18.04 or 19.04 ISO directly from Ubuntu website. First Boot and System Information I had already connected two SATA drives inside the enclosure, one SSD and one HDD, but before booting the device I connected an HDMI cable, one Ethernet cable, USB keyboard & […]

July 12, 2019July 12, 2019 by Ian W MORRISON (Linuxium) - 12 Comments

Beelink L55 Review – An Intel Core i3-5005U Mini PC Tested with Windows 10 & Ubuntu 18.04

With the shortage of Gemini Lake processors, some manufacturers have taken to releasing new mini PCs using older CPUs. The Beelink L55 is one such example and uses Intel’s Broadwell I3-5005U CPU which is a dual-core 4-thread 2.00 GHz processor with Intel’s HD Graphics 5500. The L55 is a ‘NUC’ style mini PC and physically consists of a 128 x 126 x 46 mm (5.04 x 4.96 x 1.81 inches) box case with a front panel that includes the power button, a headphone jack and a couple of 3.0 USB ports and then on the rear, two more 3.0 USBs, two 2.1 USBs, HDMI (1.4), DP and two gigabit Ethernet ports. Note that there is no SD or micro SD card slot. The full specifications include: The L55 comes with either a 256GB or 512GB (as tested in this review) M.2 SSD with pre-installed Windows 10 Home version 1809 together […]

July 11, 2019 by Tiwalade Joanna Okedara - 1 Comment

AAEON Launches BOXER-8150AI Compact Embedded Box PC Features 8 USB 3.0 Ports

The new compact embedded solutions’ addition to the BOXER-8100AI family is specially designed for artificial intelligence (AI) support. According to its makers, AAEON, it has a configuration of eight USB 3.0 ports made available through four USB controllers chips. This makes it perfect for a wide range of computer vision applications, some of which are visual inspection, quality control, and facial recognition. Now, each USB chip controls a pair of USB 3.0 ports. By dedicating one chip to one pair of ports, each chip handles less data traffic overall. This also improves bandwidth from connected devices and allows the BOXER-8150AI to maximize speeds and framerates of AI image processing. The product is currently in stock and available for purchase on AAEON online store for $1,142.00. Key Features of BOXER-8150AI Nvidia TX2 Module HMP Dual Denver 2 + Quad ARM A57 8GB LPDDR4 32GB eMMC 5.1 HDMI 2.0 8x USB […]

July 10, 2019July 10, 2019 by Jean-Luc Aufranc (CNXSoft) - No Comments

Gateworks Ventana GW5910 SBC Targets WiFi, BLE & Sub-1GHz IoT Gateways

Freescale/NXP i.MX6 based Gateworks Ventana single board computers have been around at least since 2013 and were initially targeting networking processing applications for the industry. They could be used into all sort of gateways with cellular or WiFi connectivity for instance, thanks to the presence of mini PCIe sockets. But the latest Gateworks Ventana GW5910 SBC does not exclusively relies on mini PCIe cards for wireless connectivity, as it includes an onboard Laird Sterling 802.11b/g/n WiFi & Bluetooth module, as well as optional TI CC1352P dual-band Wireless MCU supporting Sub-1GHz and 2.4GHz RF, and an optional on-board u-blox GPS module, which should lower the total cost compared to solutions with mini PCIe cards. Ventana GW5910 specifications: SoC – NXP i.MX6 Dual Core Arm Cortex-A9 SoC Processor @ 800MHz System Memory – 512MB DDR3-800 SDRAM Storage – 256MB Flash System Memory, microSD card slot, mSATA socket Connectivity Gigabit Ethernet Port Onboard […]

July 8, 2019July 7, 2019 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Testing Ubuntu 18.04 on XIDU PhilPad 2-in-1 Hybrid with Touchscreen

So I’ve recently completed the review of XIDU Philpad 2-in-1 hybrid with Windows 10. The laptop features a 13.3″ touchscreen and support stylus, and I was intrigued whether those would work in Ubuntu 18.04. So I flash the Ubuntu 18.04.2 Desktop ISO to a flash drive and installed Ubuntu to another USB flash drive to give it a try with persistent storage. Note that while it’s OK for testing, running Ubuntu 18.04 from a USB flash drive is very slow, so it’s not recommended. The good news is that you can enter the BIOS by pressing either Esc or Del at boot time, an option is available to select Linux in the BIOS. I could then select Partition 1 in my bootable flash drive, and install Ubuntu 18.04 on the other drive with some patience, and everything works smoothly, albeit slowly due to using a cheap USB flash drive during […]

July 4, 2019February 16, 2020 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

$30 FireAnt Development Board Features Efinix Trion T8 FPGA (Crowdfunding)

When I think FPGA, company names such as Xilinx, Altera (now Intel), or even Microsemi come to my mind. But there are also other companies such as Anlogic or Lattice Semi that offer FPGA chips. Today I’ve come across another FPGA silicon vendor, namely Efinix, with their Trion T8 FPGA found in XIPS Technology’s tiny FireAnt development board targeting makers and hardware designers. FireAnt specifications: FPGA – Efinix Trion T8 (T8F81C2) with 7384x LE counts, 8x embedded multipliers, 1x low-power oscillator, 1x PLL, 122.88 kbit internal RAM; Package – BGA-81 (5×5 mm) Storage – 8 Mbit serial NOR Flash Expansion – 2x 20-pin headers (soldered or unpopulated) with up to 35 GPIOs Debugging & Programming Micro USB 2.0 port via FTDI FT232HQ USB to serial chip JTAG signals in bottom layer Misc – Onboard 33.333 MHz crystal oscillator for PLL; 6x LEDs including 4 user configurable; 3x buttons (Reset, BTN1, […]

June 27, 2019June 27, 2019 by Jean-Luc Aufranc (CNXSoft) - 28 Comments

NanoPi M4 RK3399 SBC Price Drops to $50 and Up

The launch of Raspberry Pi 4 SBC has generated lots of interest, especially with the extra performance and low $35 price tag that has made most alternatives suddenly less interesting. However, Raspberry Pi 4 benchmarks show it’s not quite the fastest board around, and for example, Rockchip RK3399 platforms are still quite faster, sometimes as much as twice as fast. They do cost much more though, often more than twice, and so far one of the cheapest RK3399 boards was NanoPi M4 going for $65. FriendlyELEC has now decided, certainly in response to Raspberry Pi 4 offering, to lower the price to $50 for the 2GB RAM version which compares to $45 with Raspberry Pi 4 2GB, as well as $75 for the 4GB RAM version (was $95). NanoPi M4 specifications: SoC – Rockchip RK3399 big.LITTLE hexa-core processor with 2x Arm Cortex-A72 @ up to 2.0GHz, 4x Cortex-A53 @ up […]