Linux Category - Page 138 of 604 - CNX Software

July 19, 2022August 11, 2022 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

CrowPi L Raspberry Pi 4 laptop review – Part 1: Unboxing and teardown

CrowPi L Raspberry Pi Education Laptop Review

Elecrow CrowPi L is an 11.6-inch laptop shell based on Raspberry Pi 4 designed for STEM education with optional electronics modules and tutorials. That’s an evolution of the CrowPi 2 laptop I reviewed in 2020 with a thinner design and more flexible since the electronics modules are optional, so it can serve the market of people just wanting a Raspberry Pi 4 laptop. The company has sent me a full “CrowPi L Advanced Kit” for review with the CrowPi L laptop fitted with a Raspberry Pi 4, as well as the Crowtail Starter Kit for Raspberry Pi. CrowPi L Advanced Kit Unboxing Let’s check out the laptop package first. Since in this design, the laptop comes with a battery, and mine already had a Raspberry Pi 4 installed, I could just turn it on immediately. Accessories include a wireless mouse, a 12V/2A power supply (with USB Type-C plug… this should […]

July 18, 2022July 18, 2022 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

Libre Computer ROC-RK3328-CC now supports Ubuntu 22.04 with Linux 5.18.2

Libre Computer’s latest Ubuntu 22.04 desktop and server images for ROC-RK3328-CC board are based on Linux mainline, namely Linux 5.18.2, and other boards from the company, based on Allwinner H2+/H5 processor or Amlogic S905X, have gotten the same treatment. Some companies will churn out boards regularly but provide limited software support. Libre Computer seems to have taken a different approach, as they released most of their board in 2017 and 2018, starting with AML-S905X-CC “Le Potato” board based on the Amlogic S905X processor, followed by ALL-H3-CC “Tritium” SBC with Allwinner H2+, H3, or H5 processor, and finally ROC-RK3328-CC “Renegade” board, but still release updated OS images in 2022. I reviewed ROC-RK3328-CC SBC with Debian 9 and Ubuntu 18.04 using Linux 4.4 in July 2018, and four years later, you might have thought such boards could have become abandonware, but Libre Computer just released Ubuntu 22.04 Desktop and Server image with […]

July 18, 2022August 2, 2023 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Geniatech XPI-3566 is a business-card sized Rockchip R3566 SBC

Geniatech has added a new member to its XPI SBC family with the business card-sized XPI-3566 board powered by a Rockchip RK3566 quad-core Cortex-A55 processor, and mostly following the Raspberry Pi 3 form factor like its predecessors. The single board computer comes with 1GB to 8GB RAM, up to 64GB eMMC flash, HDMI 2.0 video output, Gigabit Ethernet, dual-band WiFi, a few USB ports, and a 40-pin GPIO header. It is said to target retail, “interactive communication”, and education applications. Geniatech XPI-3566 specifications: SoC – Rockchip RK3566 quad-core Cortex-A55 processor @ up to 1.8 GHz with Arm Mali-G52 2EE GPU, 0.8 TOPS AI accelerator System Memory – 2GB DDR (1GB, 4GB, or 8GB optional） Storage 16GB eMMC flash (8GB, 32GB, 64GB optional） MicroSD card socket Video Output HDMI 2.0 up to 4Kp60 MIPI DSI connector (not listed in the specs, but it can clearly be seen on the board) Camera […]

July 18, 2022December 15, 2022 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

DEBIX Model A – A Raspberry Pi-inspired NXP i.MX 8M Plus SBC for AI applications

DEBIX Model A is a single board computer powered by an NXP i.MX 8M Plus quad-core Cortex-A53 processor with a 2.3 TOPS AI accelerator in a form factor that combines Raspberry Pi 4 and 3 Model B designs. The SBC comes with up to 6GB RAM, a microSD card slot, an optional eMMC flash of up to 128GB capacity, HDMI 2.0a, LVDS, and MIPI DSI display interfaces, a MIPI CSI camera interface, Gigabit Ethernet and WiFi 5 connectivity, plus a 40-pin GPIO expansion header. DEBIX Model A specifications: SoC – NXP i.MX 8M Plus quad-core Cortex-A53 @ up to 1.6 GHz (industrial) or 1.8 GHz (commercial), with Arm Cortex-M7 @ up to 800 MHz, Vivante GC7000UL 3D GPU, Vivante GC520L 2D GPU, 2.3 TOPS NPU System Memory – 2GB LPDDR4 (4GB/6GB optional) Storage – Default: Micro SD card; optional 8GB, 16GB, 32GB, 64GB, or 128GB eMMC flash Video Output HDMI […]

July 17, 2022July 17, 2022 by Jean-Luc Aufranc (CNXSoft) - 27 Comments

What is PVTM? Or why your Rockchip RK3588 CPU may not reach 2.4 GHz

While the Rockchip RK3588 processor is advertised as reaching 2.4 GHz, not all RK3588 chips may achieve this frequency. The keyword is PVTM (Process-Voltage-Temperature Monitor), and we’ll try to explain why it does, and why some of the RK3588 processors may only be clocked at about 2.3 GHz, while others will run fine at 2.4 GHz. This all started with Rock 5B SBC debug party, where we noticed our boards did not reach the same frequency. Willy Tarreau noted the “pvtm” value was different between our boards: Willy’s board: (Cortex-A76 cluster 1 @ 2,304 MHz, cluster 2 @ 2,352 MHz)

# dmesg|grep cpu.*pvtm
[   2.606324] cpu cpu0: pvtm=1482
[   2.606542] cpu cpu0: pvtm-volt-sel=3
[   2.614206] cpu cpu4: pvtm=1722
[   2.618389] cpu cpu4: pvtm-volt-sel=5
[   2.626814] cpu cpu6: pvtm=1744
[   2.630998] cpu cpu6: pvtm-volt-sel=6

# dmesg|grep cpu.*pvtm

[ 2.606324] cpu cpu0: pvtm=1482

[ 2.606542] cpu cpu0: pvtm-volt-sel=3

[ 2.614206] cpu cpu4: pvtm=1722

[ 2.618389] cpu cpu4: pvtm-volt-sel=5

[ 2.626814] cpu cpu6: pvtm=1744

[ 2.630998] cpu cpu6: pvtm-volt-sel=6

CNXSoft board (Cortex-A76 cluster 1 @ 2,304 MHz, cluster 2 @ 2,304 MHz) :

[   3.620281] cpu cpu0: pvtm=1490
[   3.620376] cpu cpu0: pvtm-volt-sel=4
[   3.627377] cpu cpu4: pvtm=1736
[   3.631320] cpu cpu4: pvtm-volt-sel=5
[   3.639103] cpu cpu6: pvtm=1732
[   3.643069] cpu cpu6: pvtm-volt-sel=5

[ 3.620281] cpu cpu0: pvtm=1490

[ 3.620376] cpu cpu0: pvtm-volt-sel=4

[ 3.627377] cpu cpu4: pvtm=1736

[ 3.631320] cpu cpu4: pvtm-volt-sel=5

[ 3.639103] cpu cpu6: pvtm=1732

[ 3.643069] cpu cpu6: pvtm-volt-sel=5

Thomas Kaiser (tkaiser) board: (Cortex-A76 cluster 1 @ 2,400 MHz, cluster 2 @ 2,400 MHz)

[    3.117399] cpu cpu0: pvtm=1528
[    3.117491] cpu cpu0: pvtm-volt-sel=5
[    3.124529] cpu cpu4: pvtm=1785
[    3.128495] cpu cpu4: pvtm-volt-sel=7
[    3.136234] cpu cpu6: pvtm=1782
[    3.140173] cpu cpu6: pvtm-volt-sel=7

[ 3.117399] cpu cpu0: pvtm=1528

[ 3.117491] cpu cpu0: pvtm-volt-sel=5

[ 3.124529] cpu cpu4: pvtm=1785

[ 3.128495] cpu cpu4: pvtm-volt-sel=7

[ 3.136234] cpu cpu6: pvtm=1782

[ 3.140173] cpu cpu6: pvtm-volt-sel=7

For reference, CPU 0 to 3 are Cortex-A55 cores, CPU 4-5 are two Cortex-A76 cores (cluster 1), and […]

July 15, 2022July 19, 2022 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

ASRock Industrial iEPF-9010S/iEP-9010E Edge AIoT platforms feature Alder Lake S CPU, up to 128GB RAM

ASRock Industrial iEPF-9010S & iEP-9010E Alder Lake S Edge AIoT platform

ASRock Industrial has released the iEPF-9010S and iEP-9010E high-end, rugged Edge AIoT platforms powered by 12th Gen Intel Alder Lake S processors, equipped with up to 128GB RAM, 4G LTE, 5G, Wi-Fi 6E, Bluetooth 5.2 connectivity, and real-time TSN/TCC networking. The I/O rich embedded computers are designed for highly demanding workloads and mission-critical industrial applications such as factory automation, machine automation, robotic control, AI-enabled AOI (automated optical inspection), autonomous vehicles, smart cities, and more. The ASRock iEPF-9010S Expandable AIoT Edge platforms come with the following specifications: SoC – Intel 12th Gen Core, Pentium or Celeron “Alder Lake S” hybrid processor with up to 16 cores and 24 threads, Intel Xe or UHD Graphics fitting in an LGA 1700 socket Chipset iEPF-9010S-EY4 model – Intel R680E iEPF-9012S-EY4 model – Intel H610 System Memory iEPF-9010S-EY4 model – 4x 260-pin SO-DIMM DDR4 3200MHz up to 128GB (32 GB per SO-DIMM) iEPF-9012S-EY4 model – […]

July 11, 2022July 11, 2022 by Jean-Luc Aufranc (CNXSoft) - 17 Comments

UP 4000 SBC is a Raspberry Pi lookalike with an Intel Apollo Lake processor

AAEON has unveiled the UP 4000 single board computer with a form factor and ports arrangement similar to Raspberry Pi 2/3, but powered by a choice of x86 processors, namely the Intel Atom E3900 series, Celeron N3350, or Pentium N4200 all parts of the Apollo Lake family. The first UP Board was introduced in 2015 as a device offering an x86 alternative to the Raspberry Pi 2 with an Intel Atom x5-Z8300/Z8350 “Cherry Trail” processor, but later “UP bridge the gap” boards from the company used larger “Squared” (85.6 x 90 mm) or “Xtreme” (122 x 120 mm) form factors. The UP 4000 SBC brings us back to the original business card form factor but with a boost in performance and various specifications improvements. UP 4000 vs UP Board specifications AAEON says the new board is able to deliver 30% faster CPU performance and twice the 3D graphics performance […]

July 9, 2022July 9, 2022 by Ian W MORRISON (Linuxium) - 17 Comments

GEEKOM MiniAir 11 Review – A Jasper Lake Mini PC with plenty of ports

The GEEKOM MiniAir 11 is not just another mini PC powered by an Intel Jasper Lake N5095 processor but one that distinguishes itself by having a comprehensive range of ports. GEEKOM kindly sent a MiniAir 11 for review and I’ve looked at performance running both Windows 11 and Ubuntu 22.04. MiniAir 11 hardware overview The GEEKOM MiniAir 11 physically consists of a 117 x 112 x 34.2mm (4.61 x 4.41 x 1.35 inches) square plastic case. As an actively cooled mini PC, it uses Intel’s new 10 nm Jasper Lake N5095 processor which is a quad-core 4-thread 2.00 GHz Celeron processor boosting to 2.90 GHz with Intel’s UHD Graphics. The front panel has an illuminated power button, a 3.5mm headphone jack, a USB 3.2 Gen 2×1 port, and a Type-C USB 3.2 Gen 1×1 port. It also includes a CIR (consumer infrared) port which supports remote control. The rear panel […]