Linux News - Page 114 of 451 - CNX Software

February 20, 2022June 2, 2022 by Jean-Luc Aufranc (CNXSoft) - 73 Comments

Fixing performance issues with Realtek RTL8156B 2.5GbE USB dongle in Ubuntu

A few days ago, I reviewed a USB 3.0 to 2.5 Gbps Ethernet adapter based on Realtek RTL8156B chip in Ubuntu 20.04, and let’s say the reliability and performance were underwhelming. I got some recommendations like changing cables, the MTU size, etc… Playing around with cables did no help, but one comment mentioned the cdc_ncm driver could be the issue, followed by another saying that updating to Linux kernel 5.14 should install the correct r8152 driver… So I just did that:

sudo apt install linux-oem-20.04d

1	sudo apt install linux-oem-20.04d

This upgraded Linux 5.13 (shipped with Ubuntu 20.04 + HWE) to Linux 5.14, but still no luck as the system kept using the cdc_ncm driver with a half-duplex link:

jaufranc@cnx-laptop-4:~$ inxi -n
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  driver: r8169 
  IF: enp2s0f1 state: down mac: 98:28:a6:0f:06:07 
  Device-2: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter 
  driver: ath10k_pci 
  IF: wlp3s0 state: up mac: 70:c9:4e:b7:84:77 
  Device-3: Realtek USB 10/100/1G/2.5G LAN type: USB driver: cdc_ncm 
  IF: enx1cbfced40321 state: up speed: 2500 Mbps duplex: half 
  mac: 1c:bf:ce:d4:03:21 
jaufranc@cnx-laptop-4:~$ uname -a
Linux cnx-laptop-4 5.14.0-1022-oem #24-Ubuntu SMP Mon Jan 31 16:00:31 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

jaufranc@cnx-laptop-4:~$ inxi -n

Network:

Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet

driver: r8169

IF: enp2s0f1 state: down mac: 98:28:a6:0f:06:07

Device-2: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter

driver: ath10k_pci

IF: wlp3s0 state: up mac: 70:c9:4e:b7:84:77

Device-3: Realtek USB 10/100/1G/2.5G LAN type: USB driver: cdc_ncm

IF: enx1cbfced40321 state: up speed: 2500 Mbps duplex: half

mac: 1c:bf:ce:d4:03:21

jaufranc@cnx-laptop-4:~$ uname -a

Linux cnx-laptop-4 5.14.0-1022-oem #24-Ubuntu SMP Mon Jan 31 16:00:31 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

But then I thought I may have to use udev rules to prevent loading the cdc_ncm driver, and there’s indeed 50-usb-realtek-net.rules in r8152 driver to do just that. So I copied the file in /etc/udev/rules.d/ folder. Since I […]

February 18, 2022 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

VIA SOM-9X35 Starter Kit features MediaTek i350 Arm processor for edge AI devices

VIA has just introduced the SOM-9X35 Starter Kit based on MediaTek i350 quad-core Cortex-A53 processor with AI accelerator and HiFi4 DSP designed for Edge AI devices in the retail, commercial, and industrial sectors. The kit is comprised of the SOM-9X35 module with MediaTek i350 SoC, up to 4GB RAM, 16GB eMMC flash, and WiFI 5 + Bluetooth 5.0 wireless module, as well as the VIA VAB-935 3.5-inch carrier board, a 7-inch 1024×600 touch panel display, a 13MP camera module, two speakers and microphone, and accompanying accessories. VIA SOM-9X35 Starter Kit specifications: SOM-9X35 System-on-Module SoC – MediaTek i350 (MT8365) quad-core Arm Cortex-A53 processor @ up to 2.0 GHz, Arm Mali-G52 MC1 up to 800Mhz with support for OpenGL ES, OpenCL, and Vulkan APIs, MediaTek APU 1.0 AI Processor up to 500MHz (285 GMACs), HiFi4 DSP System Memory – 2GB LPDDR4 SDRAM (1GB/4GB optional) Storage – 16GB eMMC flash Connectivity – MediaTek […]

February 17, 2022June 10, 2023 by Ian W MORRISON (Linuxium) - 12 Comments

Beelink GTR5 Review – An AMD Ryzen 9 mini PC tested with Windows 11, Ubuntu 20.04

Beelink’s GTR5 is their most powerful mini PC to date and has been released as part of their ‘GT’ series of slightly larger mini PCs that are notable for expandable storage configurations together with multiple ports and characterized by the inclusion of a fingerprint scanner. Featuring an AMD Ryzen 9 mobile processor with Radeon Graphics, Beelink kindly sent one for review and I’ve looked at performance running both Windows and Ubuntu. Hardware Overview The Beelink GTR5 physically consists of a 168 x 120 x 39mm (6.61 x 4.72 x 1.54 inches) rectangular metal case. As an actively cooled mini PC, it uses AMD’s ‘Zen 3’ Ryzen 9 5900HX processor which is an eight-core 16-thread 3.3 GHz mobile processor boosting up to 4.6 GHz together with Radeon Graphics. The front panel has an illuminated power button, a ‘CLR CMOS’ button, a USB 3.1 port, a Type-C USB 3.1 port, and a […]

February 17, 2022 by Jean-Luc Aufranc (CNXSoft) - No Comments

IoT device monitoring as a product reliability improvement tool

IoT Device Monitoring with Torizon Platform

CNXSoft: This is a guest post by Renato Kiss, Product Manager – Software at Toradex, explaining how IoT device monitoring can be used with open-source software tools like Fluent Bit to improve product reliability, using temperature monitoring as an example. It is impossible to dissociate connected devices from modern life. They are present in homes, offices, industries – basically, in every business, connected devices play vital roles. In a market estimated at 24.1 billion devices and with a revenue of more than USD 1.5 trillion by 2030, IoT will grow based on both consumer and business applications. Hardware will account for about one-third of this value with the majority being distributed in services, including the connectivity for the system. As part of this growth, more services will be added to IoT business and some specialists estimate the economic potential, including IoT products and services, can unlock at least USD 5.5 […]

February 14, 2022February 16, 2022 by Jean-Luc Aufranc (CNXSoft) - 18 Comments

Android 13 virtualization lets Pixel 6 run Windows 11, Linux distributions

The first Android 13 developer preview may have felt a bit underwhelming, but there’s a hidden gem with full virtualization possible on hardware such as the Google Pixel 6 smartphone. What that means is that it is now possible to run virtually any operating system including Windows 11, Linux distributions such as Ubuntu or Arch Linux Arm on the Google Tensor-powered phone, and do so at near-native speed. Android & web developer “kdrag0n” tested several Linux distributions compiled for Aarch64 on the Pixel 6 with Ubuntu 21.10, Arch Linux Arm, Void Linux, and Alpine Linux using “the KVM hypervisor on Pixel 6 + Android 13 DP1”. He/she further explains: As far as I can tell, we can pretty much get full EL2 on production devices now. Protected KVM is optional and can be enabled on a per-VM basis, but for non-protected VMs, it looks like full KVM functionality is available. […]

February 13, 2022February 17, 2022 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

RISC-V or Arm? This tiny 4x4cm Linux board with WiFi offers both options

Last fall, we wrote about Allwinner D1s/F133-A RISC-V processor and the upcoming MangoPi MQ1, a tiny 4x4cm board based on the processor. The board is not for sale, but we have more details, and the company is also working on an Arm version equipped with Allwinner T113-S3 dual-core Cortex-A7 processor that is pin-to-pin compatible with F133-A SoC. The Allwinner F133-A board will finally be called MangoPi Nezha-MQ, or MangoPi MQ for shorts, and come with 64MB on-chip RAM while the Allwinner T113-S3 board, with 128MB on-chip RAM, will be named MangoPi MQ-Dual. Both are fitted with a Realtek RTL8189-based Wi-Fi module, offer display and camera interfaces, two USB-C interfaces, and headers for GPIOs. MangoPi MQ RISC-V or Arm Linux board MangoPi MQ/MQ-Dual specifications: SoC (one or the other) MangoPi MQ – Allwinner D1s/F133-A 64-bit RISC-V processor @ 1 GHz with 64 MB DDR2 MangoPi MQ-Dual – Allwinner T113-S3 32-bit dual-core […]

February 13, 2022February 13, 2022 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

Allwinner T113-S3 dual-core Cortex-A7 SoC features 128MB DDR3, targets automotive and industrial applications

Allwinner T113-S3 is a dual-core Cortex-A7 processor with 128MB DDR3 on-chip memory that is designed for smart control and HMI applications in the automotive and industrial sectors. At first glance, the new processor looks quite similar to Allwinner S3, but with twice the number of cores. However there’s more to it, as a a HiFi4 DSP has been added for smart audio applications, the H.264 encoder is gone replaced by an MPJEG encoder, and the company claims support for “industrial level working temperature”, plus a 10-year life cycle. among other differences. Allwinner T113-S3 specifications: CPU – Dual-core Arm Cortex-A7 with 32 KB L1 I-cache + 32 KB L1 D-cache per core, and 256 KB L2 cache DSP – Single-core HiFi4 Memory – 128 MB DDR3 Storage I/F – SD3.0/eMMC 5.0, SPI Nor/NAND Flash Video Decoding – H.264, H.265, MPEG-1/2/4, (M)JPEG, VC1 up to 1080p60 Encoding – JPEG/MJPEG up to 1080p60 […]

February 12, 2022June 4, 2022 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Orange Pi R1 Plus LTS sells with metal enclosure for $35.99

Shenzhen Xunlong Software previously launched the Orange Pi R1 Plus LTS router board powered by Rockchip RK3328 quad-core processor last November for $27.99 on Aliexpress. As expected, albeit with some delays, the company has now introduced a metal enclosure for the Orange Pi R1 Plus LTS board transforming it into a complete router or gateway. You can get it as part of a kit for $35.99 plus shipping, or if you’ve already purchased the board previously, get the enclosure only for $9 plus shipping. Orange Pi R1 Plus LTS router/gateway specifications: SoC – Rockchip RK3328 quad-core Cortex-A53 @ 1.5 GHz with Arm Mali-450MP2 System Memory – 1GB LPDDR3 RAM Storage – MicroSD card slot, 16 MB SPI flash Connectivity 2x Gigabit Ethernet via YT8531C Ethernet PHY and RTL8153B USB 3.0 to Ethernet chip; both tested by the company up to 945 Mbps Tx and 963 Mbps Rx On-board WiFi is not […]