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Posted on by Jean-Luc Aufranc (CNXSoft) - 11 Comments on 3D Graphics Acceleration in Linux on Allwinner A80 based Cubieboard4

3D Graphics Acceleration in Linux on Allwinner A80 based Cubieboard4

Allwinner A80 is a powerful octa-core processor found in development boards and TV boxes such as Cubieboard4 or Tronsmart Draco AW80. Some early Ubuntu images and instructions had already been released for A80 Optimusboard and Draco AW80, but none of these featured GPU drivers for 3D acceleration, which to be honest, has limited advantages in Linux desktop distributions since desktop environments and most apps require full OpenGL support, i.e. not only OpenGL ES, and the only ARM SoC that can provide OpenGL support without external graphics card is Nvidia Tegra K1 SoC. Having said that GPU drivers would pave the way for smooth OpenELEC / Kodi user interface support in Allwinner A80 Linux distributions. That’s only one part of the puzzle, since the GPU normally handles the user interface, while the VPU takes care of video decoding. The good news is that CubieTech release updates images for their Cubieboard4 (CC-A80) […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 5 Comments on How to Install Ubuntu ARM64 on Nexus 9 Tablet

How to Install Ubuntu ARM64 on Nexus 9 Tablet

HTC Nexus 9 is one of the first 64-bit ARM platform with powerful ARMv8 cores (e.g. not Cortex A53) that both commercially available, and relatively affordable at $399 to $599, at least significantly cheaper than the server boards such as Applied Micro X-C1. The tablet comes with Android 5.0 Lollipop, but for those of you who wish to have an ARM64 platform running Ubuntu or other 64-bit Linux operating systems, Ubuntu installation instructions provided by Ryan Houdek, Dolphin emulator developer, might come handy, especially it won’t affect your Android installation provided you have already unlocked your bootloader. The instructions are fairly long so I won’t reproduce them all here, so I recommend you check the detailed instructions on XDA, but the short summary below may give an idea of the amount of work needed: Install dependencies such as Aarch64 toolchain:

Build a initramfs with buildroot. You’ll need to enable […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on CubieTruck Metal Case Kit Getting Started Guide and Review

CubieTruck Metal Case Kit Getting Started Guide and Review

I’ve received CubieTruck Metal Case kit just over a month ago, but just like for Ubuntu on ODROID-XU3 Lite, the board could not get HDMI EDID info from my Panasonic TV, which led to a crash at boot time. CubieTech has now fixed the issue, so I’ve finally been able to complete the review with Cubieez (Cubie Easy) distribution, pre-installed on the board, and based on Debian 7.6. You can get the full hardware specs on my previous post, but the kits is comprised of four parts: CubieTruck development based on Allwinner A20 dual core processor, a rugged metallic enclosure, a 128GB SSD, and a 5,300 mAh battery acting as a UPS. I’ll start by showing how to setup the board, test SATA and Gigabit Ethernet performance,  check if the battery acts as expected, try to use the board as a desktop replacement with LibreOffice, Chromium, and so on, and […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 9 Comments on U-Boot and Linux Source Code for ODROID-C1 Board Has Been Released

U-Boot and Linux Source Code for ODROID-C1 Board Has Been Released

Hardkernel ODROID-C1 board, a more powerful $35 alternative to the Raspberry Pi, garnered a lot of attention when it was announced last week. At the time source code was not available, but as scheduled, U-boot and Linux source code is now available, and the full Android SDL should be released on February 2015. Instructions to get the code, and build both Linux and U-boot are available on ODROID-C1 Wiki, and I’ve just given a try to Linux instructions myself to see if I would encounter any issues in Ubuntu 14.04. Download Linaro GCC 4.7 toolchain from Linaro or Odroid website. Install the toolchain. They install it on /opt/toolchain, but instead I’ve installed in ~/opt/toochain, so I don’t need superuser permissions: mkdir -p ~/opt/toolchains tar xvf gcc-linaro-arm-linux-gnueabihf-4.7-2013.04-20130415_linux.tar.bz2 -C ~/opt/toolchains/ Add the following lines to ~/.bashrc export ARCH=arm export CROSS_COMPILE=arm-linux-gnueabihf- export PATH=~/opt/toolchains/gcc-linaro-arm-linux-gnueabihf-4.7-2013.04-20130415_linux/bin:$PATH To apply change, log out and log in, or run: […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 18 Comments on ODROID-XU3 Lite Board Ubuntu Review – Setup, Usability, and Performance

ODROID-XU3 Lite Board Ubuntu Review – Setup, Usability, and Performance

After testing ODROID-XU3 Lite with Android 4.4, and finding a workaround to some HDMI issues, I could finally try out Ubuntu, or rather Lubuntu with LXDE instead of Unity, in Hardkernel low cost octa-core development board. I’ll start this review by explaining how to install and setup Lubuntu on the board, followed by running various program to test the system usability as a desktop computer with LibreOffice, Chromium, XBMC, and 3D graphics, and finally run some performance tests with Phoronix Test Suit, build the Linux kernel natively, and transcode a video with avconf. Setting Up Ubuntu on ODROID-XU3 Lite All firmware images for ODROID development boards, can be found on odroid.in website, and if you want Ubuntu 14.04 image, go to ubuntu_14.04lts folder, to select the latest firmware file for your board. The latest image for ODROID-XU3 (Lite) is currently ubuntu-14.04.1lts-lubuntu-odroid-xu3-20141105.img.xz, it’s the same for micro SD card or eMMC […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 5 Comments on How to Modify HDMI Output Parameters in Linux for ODROID-XU3 (Lite) Development Board

How to Modify HDMI Output Parameters in Linux for ODROID-XU3 (Lite) Development Board

Good news, I’ve finally managed to make HDMI output in my ODROID-XU3 Lite development board work with the Ubuntu image after some more tweaking. So ODROID XU3 Lite Ubuntu review is coming in the next few days. But first, I’ll explain the few steps I went through, in case others experience a similar issue. I downloaded, extracted, and flashed the latest Ubuntu image to a micro SD card with dd to give another try at running Ubuntu on my board, but no luck, I still got that black screen, albeit the system boots properly, as I got the command line using the serial console. During my Android review of ODROID-XU3 Lite, I noticed the system would always revert back to 720p60 video output, and HDMI output settings can be selected in /media/boot/boot.ini with the following content:

I actually tried a few settings in my previous attempt but unsuccessfully. Now […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 24 Comments on Boot Ubuntu (Linux) or Android from an SD Card on Rockchip RK3288 Devices

Boot Ubuntu (Linux) or Android from an SD Card on Rockchip RK3288 Devices

There’s already a method to boot Android from an SD Card on RK3188 devices, which should work with all Rockchip RK3188 devices. Ian Morrison (Linuxium) has now provided a instructions to boot Linux or Android from a (micro) SD Card in Rockchip RK3288 based devices, leveraging work from linux-rockchip community, and especially naobsd. The Android flashing method is slightly different between RK3188 and RK3288, because most Rockchip RK3288 devices make use of eMMC flash, while older Rockchip RK3188 products feature NAND flash, and it appears Rockchip RK3xxx boot priorities (in the BootROM stored in the SoC itself) are as follows: eMMC, SD card, and NAND flash. All that means is that an updated version of the bootloader is needed which looks for a bootable SD card, and although very unlikely, your device could end up being bricked during this procedure. This is not a problem for Open Hour Chameleon since […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 3 Comments on How To Upgrade Firmware on Ugoos UM3 mini PC

How To Upgrade Firmware on Ugoos UM3 mini PC

Ugoos released two new dual boot Android / Ubuntu images for Ugoos UT3 and UM3, which reduces the size of the system by 300MB, includes LibreOffice, replaces Firefox by Chromium + PepperFlash plugin, and fixes various bugs: ut3_dualboot_v0.2.rar – For UT3 full sized TV box UM3_dualboot_v0.2.rar – For UM3 mini TV box The firmware update procedure for Rockchip RK3288 is well-known, and Ugoos even includes a word file with flashing instructions in Microsoft Windows with the firmware images. However, it still took me about one hour to find out how to do with Ugoos UM3, so I thought I’d write a post in case others encounter the same issue. I flash the firmware in Ubuntu, so instead of using Android Tool, I flashed it with upgrade_tool command line utility I got from Orion R28 SDK, but you can also download Linux_Upgrade_Tool_v1.2.tar.gz directly. First let’s enter recovery mode. The procedure is […]

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