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Posts Tagged ‘kernel’

Linaro 15.07 Release with Linux 4.2 and Android 5.1

July 31st, 2015 No comments

Linaro 15.07 has been released with Linux 4.2-rc3 (Baseline), Linux 3.10.83, 3.14.45 and 3.18.17 (LSK), and Android 5.1.1_r8.

The Linux kernel got various bug fixes, and a power reduction technique has been implemented for Qualcomm processor. Progress has been made to boot Android with UEFI on Hikey board, and work is still on-going on 96boards including Hisilicon Hikey, Qualcomm DragonBoard 410c, and an upcoming and yet-to-be-formally-announced Marvell PXA1928 board called Helium.

Highlights of this release:

  • Linux Linaro 4.2-rc3-2015.07
    • linaro-android topic updated to 4.2-rc3 and recent AOSP/android-3.18
    • included GATOR version 5.21.1
    • llct-misc-fixes topic: “HACK: of: Limit FDT size for CRC check on arm64” has been dropped. FVP model was the last target to require this hack, but the new FVP firmware doesn’t need it anymore
    • updated integration-linaro-vexpress64 topic by ARM LT: Versatile Express TC2 support is back, HDLCD display now works on TC2, the topic will be renamed to integration-linaro-vexpress next cycle
    • updated integration-linux-qcomlt topic by Qualcomm LT: QCOM Core Power Reduction (CPR) support has been added
    • linaro-builddeb-tweaks topic is dropped (most of our changes have been upstreamed)
  • Linaro builds of AOSP 15.07
    • Android baseline updated to 5.1.1_r8
    • ART CI setup for TIP and stable builds
      • Boot to gui tests added for tip and stable builds
      • ART code coverage for tip and stable builds
      • m-preview based builds setup for emulators
      • ART-host-gtests added for tip and stable builds
    • Hikey builds updated to 5.1.1_r8. Android boots with UEFI and GRUB on HiKey. Wifi drivers are integrated in the build system. Drivers are built as part of Android build process.
  • Linaro OpenEmbedded 2015.07
    • integrated Linaro GCC 4.9-2015.06
    • updated linux-linaro to 4.2-rc3
    • disabled aarch64 bootwrapper
    • integrated various improvements for LNG CI
    • upstreaming:
      • fixed bootimg.bbclass to work with all kernel image types
      • fixed cmake builds for native recipes
  • Linaro Ubuntu 15.07 – updated packages: fvp-pre-boot (FVP firmware), LSK 3.10.83/3.14.45/3.18.17 and linux-linaro 4.2-rc3 kernels
  • 96boards contributions:
    • DragonBoard 410c is now using NetworkManager only to manage the network (previously a combination with systemd-networkd/resolved has been used).
    • HiKey made some progress toward the switch to UEFI. GRUB is now integrated into the snapshots builds for both AOSP and Debian.
    • Initial Debian based build for Marvell PXA1928 Helium is setup and available.

Visit https://wiki.linaro.org/Cycles/1507/Release for a list of known issues, and further release details about the LEB, LMB (Linaro Member Builds), and community builds, as well as Android, Kernel, Graphics, Multimedia, Landing Team, Platform, Power management and Toolchain components.

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Linaro 15.06 Release with Linux 4.1 and Android 5.1

June 26th, 2015 1 comment

Linaro 15.06 has been released with Linux 4.1-rc8, Linux 3.10.80 and 3.14.44 (LSK), and Android 5.1.1.

Highlights of this release:

  • Linux Linaro 4.1-rc8-2015.06
    • linaro-android topic updated to 4.1-rc8 and recent aosp/android-3.18
    • included GATOR version 5.21.1
    • updated integration-linaro-vexpress64 topic by ARM LT
  • Linaro builds of AOSP 15.06 is released
    • CI bring up: setup AOSP master build on Emulator
    • implemented boot-to-gui test for Emulator
    • CI bring up: setup AOSP 5.0 headless build for APM X-Gene Mustang
  • Linaro OpenEmbedded 2015.06
    • updated linux-linaro to ll-20150616.0 (based on 4.1-rc8)
    • updated linux-linaro-stable to 3.10.79
    • workaround meta-virtualization breakage
    • upstreaming
      • fixed bootimg.bbclass to work with all kernel image types
      • imported xorriso v1.4.0 from luvOS
      • cloud-image-*: catch up with OE-core class rename
  • Linaro Ubuntu 15.06 – updated packages: fvp-pre-boot (FVP firmware), LSK 3.10.79/3.14.44/3.18.16 and linux-linaro 4.1-rc8 kernels
  • CI bring up: uprobes/systemtap enabled build

Visit https://wiki.linaro.org/Cycles/1506/Release for a list of known issues, and further release details about the LEB, LMB (Linaro Member Builds), and community builds, as well as Android, Kernel, Graphics, Multimedia, Landing Team, Platform, Power management and Toolchain components.

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Linaro 15.05 Release with Linux 4.1 and Android 5.1

May 31st, 2015 6 comments

Linaro 15.04 has been released with Linux 4.1-rc4, Linux 3.10.79 and 3.14.42 (LSK), and Android 5.1_r3. The Ubuntu image is now based on Vivid instead of Utopic.

Android and Debian builds/images have been released for Hikey’s 96boards, Ubuntu Vivid and Android builds have been setup for Qualcomm’s Dragonboard 410c. A new platform, Socionext M8M, has also show in Linaro changelog. I could not find details about M8M, but Socionext is a “new company that designs, develops and delivers System-on-Chip products” and focuses on “imaging, networking and other dynamic technologies”. Their latest press release mentions a 4K media processor with build-in HDMI 2.0 Tx and Rx, so maybe M8M is based on that processor, but I can’t know for sure as they have several chips.

Highlights of this release:

  • Linux Linaro 4.1-rc4-2015.05
    • GATOR updated to version 5.21.1
    • updated integration-linaro-vexpress64 topic by ARM LT: PCI support added – for Juno r1.
  • Linaro builds of AOSP 15.05 is released – baseline updated to android-5.1_r3
  • Linaro OpenEmbedded 2015.05
    • updated linux-linaro to ll-20150519.0 (based on 4.1-rc4)
    • updated linux-linaro-stable (LSK) to 3.10.74
    • update GATOR to 5.21.1
    • updated ODP to v1.0.3
    • Initial for ptest support to LNG images
    • fixed layout differences between external binary linaro toolchains and OE sysroot
    • fixed CI loop code path for external linaro binary toolchains
  • Linaro Ubuntu 15.05
    • migrated from Utopic based images to Vivid
    • fixed transtion from upstart to systemd (introduced with Vivid)
    • updated packages: LSK 3.10.79/3.14.42 and linux-linaro 4.1-rc4 kernels
  • CI bring up: U-Boot upstream
    • upstream U-boot is now build tested and covers all armv7/armv8 configurations (297 in total)
    • build artifacts are published
  • CI bring up: setup Member LCR and Reference LCR builds
  • CI bring up: Socionext M8M board (DEVPLAT-364)
  • 96boards: HiKey Debian and AOSP builds are released
  • 96boards: setup Ubuntu Vivid build for DragonBoard 410c
  • 96Boards: setup Android build for DragonBoard 410c
  • CI bring up: add 3.18 branches for LSK
  • migrating TCWG jenkins jobs and build slaves to ci.linaro.org
  • Ubuntu baseline: Utopic to Vivid migration
  • Linaro CI: added check-lava-status, LAVA job status is now added to the build job on ci.linaro.org (Jenkins)
  • Linaro CI: migration of AOSP based builds from android-build.linaro.org to ci.linaro.org in progress

Visit https://wiki.linaro.org/Cycles/1504/Release for a list of known issues, and further release details about the LEB, LMB (Linaro Member Builds), and community builds, as well as Android, Kernel, Graphics, Multimedia, Landing Team, Platform, Power management and Toolchain components.

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Linaro 15.04 Release with Linux 4.0 and Android 5.1

May 1st, 2015 1 comment

Linaro 15.04 has been released with Linux 4.0 (baseline), Linux 3.10.74 and 3.14.39 (LSK), and Android 5.1.1.

Other noticeable changes include support for the new DragonBoard 410c 96boards compliant board, the addition of A80 Optimusboard (Allwinner A80) to Android Kitkat build, Hisilicon D01 support added to the Debian installer, and support for Ubuntu ARM64 Gnome rootfs.

Highlights of the release:

  • Linux Linaro 4.0-2015.04
    • updated linaro-android topic: aosp/android-3.18 branch has been merged
    • GATOR topic: version 5.20.1
    • updated integration-linaro-vexpress64 topic by ARM LT (FVP Base and Foundation models, and Juno support)
    • updated topic from Qualcomm LT (IFC6410 and DB410c boards support):
      • Resource Power Manager (RPM) – MSM Shared Memory Driver (SMD) driver
      • quite some changes under drivers/gpu/drm/ related to adv7511 and adv7533 support
      • ASoC support for QCOM platforms
      • external Connector Class (extcon) support (used for USB VBUS and ID detection)
  • Linaro builds of AOSP 15.04
    • baseline updated to android-5.1.1_r1
    • updated Nexus 10 CI for LAVA testing
    • added Optimus A80 Android Kitkat build
  • Linaro OpenEmbedded 2015.04
    • removed stress recipe in favor of oe-core recipe
    • updated linux-linaro to ll_20150422.0 (based on 4.0)
    • libevent-fb: OE-core updated to 2.0.22, fix require statement
    • APM mustang boot failure was tracked down to using ‘arm64’ as U-Boot arch for the initramfs header while the vendor U-Boot 2013.04 expects ‘arm’.
    • upstreaming – strace: fix build for aarch64; libgpg-error 1.18: simplify tuple handling and add armv8b support
  • Linaro Ubuntu 15.04 – updated packages: LSK 3.10.74/3.14.39 and linux-linaro 4.0 kernels
  • U-Boot: upstream fastboot support
  • Add HiSilicon D01 platform support to Debian installer
  • Updated android-build job to work with docker slaves
  • Cleaned up ILP32 build job
  • LSK: enable debug options on regular builds
  • linux-linaro: ll-fold.sh script fixed to work correctly with newer git versions
  • CI bring up: tshark board Android member build
  • Added Ubuntu arm64 gnome rootfs
  • Added D01 platform to Coresight CI loop

Check out https://wiki.linaro.org/Cycles/1504/Release for a list of known issues, and further release details about the LEB, LMB (Linaro Member Builds), and community builds, as well as Android, Kernel, Graphics, Multimedia, Landing Team, Platform, Power management and Toolchain components.

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Linux 4.0 Release – Main Changes, ARM and MIPS Architectures

April 15th, 2015 11 comments

Linus Torvalds “Ima Sheep” released Linux Kernel 4.0 on Sunday:

So I decided to release 4.0 as per the normal schedule, because there really weren’t any known issues, and while I’ll be traveling during the end of the upcoming week due to a college visit, I’m hoping that won’t affect the merge window very much. We’ll see.

Linux 4.0 was a pretty small release both in linux-next and in final size, although obviously “small” is all relative. It’s still over 10k non-merge commits. But we’ve definitely had bigger releases (and judging by linux-next v4.1 is going to be one of the bigger ones).

Which is all good. It definitely matches the “v4.0 is supposed to be a_stable_ release”, and very much not about new experimental features etc. I’m personally so much happier with time-based releases than the bad old days when we had feature-based releases.

That said, there’s a few interesting numerological things going on with 4.0. Looking at just the statistics in git, this release is not just when we cross half a million commits total, but also cross the 4 million git object limit. Interestingly (if you look for numeric patterns), Linux 3.0 was when we crossed a quarter million commits and 2 million git objects, so there’s a nice (and completely unintentional) pattern there when it comes to the kernel git repository.

[ Another quick historical numerological footnote: the old historical BK tree was getting close to the 16-bit commilt limit that BK originally used to have. So that whole “quarter of a million commits” is actually quite a lot. During all of the BK years we only got 65k commits. Of course, we only used BK for three years, and we’ve now been on git for almost exactly ten years, but still – it shows how the whole development process has really sped up a _lot_ ]

Feature-wise, 4.0 doesn’t have all that much special. Much have been made of the new kernel patching infrastructure, but realistically, that not only wasn’t the reason for the version number change, we’ve had much bigger changes in other versions. So this is very much a “solid code progress” release.

Go get it and enjoy,

Linus “we’re all sheep” Torvalds

Linux 3.19 brought improvement to btrfs (raid), the network stack, added ARM Coresight, device tree overlays support, and more.

Some key changes made to Linux 4.0 include:

  • pNFS (Parallel NFS), UBIFS, F2FS and BTRFS File Systems improvements
  • Live Kernel Patching – Install kernel updates without rebooting
  • Intel Quark x86 SoC support
  • Various patches to improve Linux running on a  Playstation 3
  • Open source AMD Radeon driver supports DisplayPort Audio and improves fan support

Some of the new features and improvements specific to the ARM architecture include:

  • Allwinner:
    • A20 – PS/2 Controller
    • A31 – IR receiver
    • A31s – Bring-up sharing majority of drivers with A31, pinctrl driver
    • A80 – MMC
    • All SoCs – LRADC Input driver, CPUFreq, PWM Driver
    • AXP209 power button input driver
    • New boards and devices:  CSQ CS908, LeMaker Banana Pro, Chuwi V7 CW0825, Rikomagic mk802, Rikomagic mk802ii, Rikomagic mk802_a10s, MarsBoard A10, Hyundai A7HD
  • Rockchip
    • Fixes for rk808 regulator
    • Watchdog fix
    • Add Rockchip timer for RK3288
    • HDMI output enabled on rk3288-firefly and rk3288-evb
    • Disable GMAC by default
  • Amlogic – pinctrl driver for Amlogic Meson SoCs
  • Mediatek
    • Regulator driver for Mediatek MT6397
    • Added watchdog driver
    • Added Mediatek MT8173 64-bit processor
  • ARM64
    • New processors: Exynos 7, Freescale LS2085A, and Tegra 132 (Denver)
    • Various fixes for ARM64 including UEFI and KVM code.
  • Preparation work for Atmel AT91 support for multiplatform
  • Other new platforms – Alphascale ASM9260, Marvell Armada 388, CSR Atlas7, TI Davinci DM816x, Hisilicon HiP01, ST STiH418, and Conexant Digicolor (CX92755).

There has also been some interesting changes for the MIPS architecture:

  • Fixes for KVM support
  • Support for MIPS R6 processors
  • Preliminary support for Cavium Octeon 3 SoCs which feature up to 48 MIPS64 R3 cores with FPU and hardware virtualization

A more detailed changelog for Linux 4.0 will soon be available on Kernelnewbies.org, and once it’s up you may also want to have a look at their ARM architecture and drivers sections for more details about changes related to ARM, MIPS and other platforms. I’ve also generated a complete Linux 3.19 vs Linux 4.0 changelog (3.4MB) with git (comments only, no code).

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Linaro 15.03 Release with Linux 4.0 and Android 5.1

March 27th, 2015 No comments

Linaro has just announced their 15.03 release with Linux 4.0-rc4 (baseline), Linux 3.10.72 and 3.14.36 (LSK), and Android 5.1.

The organization has worked on hardware platforms from members namely Qualcomm, ARM, HiSilicon, Samsung, and STMicro, including the recently announced 96Boards boards, and other ARMv8 platforms.

Highlights of the release:

  • Linux Linaro 4.0-rc4-2015.03
    • updated linaro-android topic
    • added a few build/boot fixes for Arndale (llct-misc-fixes topic)
    • GATOR topic: version 5.20.1
    • updated integration-linaro-vexpress64 topic by ARM LT (FVP Base and Foundation models, and Juno support)
    • updated topic from Qualcomm LT (ifc6410 board support)
    • simple EEPROM framework (via Qualcomm LT’s topic)
    • updated topic from HiSilicon LT (Hi36xx, HiP04, and X5HD2 families support)
    • rebased “ILP32 patch set v3” onto 4.0-rc2
  • Linaro builds of AOSP 15.03
    • updated all the baselines to AOSP 5.1
    • added commit based trigger feature to CI builds
  • Linaro OpenEmbedded 2015.03
    • integrated Linaro GCC 4.9-2015.03
    • dismantled meta-aarch64 layer
    • created meta-ilp32 layer
    • cleaned out meta-bigendian layer
    • synced overlayed recipes with upstream
    • added full wget and rt-test on LAMP image as requested by QA team
    • update busybox xargs config as requested by QA team
    • integrated ODP 1.0
    • upstreaming:
      • sysprof: fix arm big-endian build
      • bitbake.conf: use http:// for GNU_MIRROR instead of ftp://
      • kexec-tools: fix build failure on aarch64_be architecture
      • busybox: update to 1.23.1 release
      • mozjs 17.0.0: fix aarch64 and 64k page builds, generic cleanups
  • Linaro Ubuntu 15.03
    • added packages: ti-calibrator
    • updated packages: LSK 3.10.72/3.14.36 and linux-linaro 4.0-rc4 kernels
    • Added ILP32 support for ARM64 to Linaro engineering builds
    • Dismantled meta-aarch64 in favour of OE-core aarch64 support
    • CI bring up: luvOS (Linux UEFI Validation Operating System)
  • KVM – support testing arm32 with arm64
  • Added b2120stxh410 to linux-mainline and linux-arm-soc-for-next build jobs
  • 96boards: enable Xorg by default in eMMC/SD debian build
  • Added 2 new build slaves
  • Migrated lt-qcom-ubuntu-images to docker based infrastructure
  • Upgraded ARMv8 build slaves to 3.19 kernel
  • Cleaned up LCR (Linaro Confectionery Release) information and instructions

Visit https://wiki.linaro.org/Cycles/1503/Release for a list of known issues, and further release details about the LEB, LMB (Linaro Member Builds), and community builds, as well as Android, Kernel, Graphics, Multimedia, Landing Team, Platform, Power management and Toolchain components.

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How to Install Ubuntu 14.04 on Acer Aspire E5 Laptop

March 23rd, 2015 No comments

I’ve been owning an Acer Aspire One D255E netbook with a 10″ display, an Intel Atom N455 processor and 1GB RAM that served me well during my travels, but as I’ve become older and less patient, I felt I needed to upgrade it. I planned to spend around 10,000 Baht (~$300), wanted a 14″ display, one of the low power CPU such as Intel Bay Trail-M or AMD Mullins / Beema processors, at least 500GB storage, 4GB RAM, and the ability to install Ubuntu. Finally, after going through several products at my local shop, I had to chose between Acer Aspire E5-411-P3CL with a 7.5W TDP Intel Atom N3540 and Acer Aspire E5-421G-45L0 with a 15W TDP AMD A4-6210 processor that both sell for 11,900 Baht ($365). Despite my preference for processor with lower TDP, I still went with the AMD system, since the performance is a little better, the warranty is good for 2-years (vs. 1 year for the Intel laptop), and I’ve always rooted for AMD in the past as an alternative to Intel.

Both laptop are pre-loaded with Linpus Linux 9.2, but when I boot the laptop at the shop, I discovered it was just a headless version that boots to the command line. The seller even told me something like “oohhh, Linux is like that? I did not know, normally just just format the hard drive…” So it’s like FreeDOS it’s installed to test hardware during MP, and let the shop sell legal system so that customers can install Windows themselves. Sometimes you also get given a free coupon to get it installed in a small shop.

Acer_Linpus_LinuxNevertheless, I finally purchased the laptop and planed to install Ubuntu on the system.

Since I had already downloaded Ubuntu 14.04 64-bit ISO, that’s the one I installed, but once Ubuntu 15.04 is released, you would probably avoid several of the issue I had during installation. You are likely to face issues with Ubuntu 14.10 too.

I followed the standard installation procedure, by “flashing” ubuntu-14.04-desktop-amd64.iso to a USB flash drive formatted with FAT32 using Unetbootin software in another Ubuntu machine, but you could also use a Windows machine with Rufus.

Then I inserted the USB flash into the Aspire E5 laptop, press F2 at boot time to enter InsydeH20 Setup Utility, and select the USB drive as primary boot device, and Ubuntu setup started normally, but the touchpad did not work, so you’ll have to connect a USB mouse unless you’re comfortable with using the keyboard for everything. The touchpad probblem is a known issues, that’s fixed in Linux 3.17 or greater+.

Ubuntu_Acer_Aspire_E5_Installation_Type_Replacing_LinpusApart from this issue the installation went smoothly, and I selected “Replace Linpus Linux 9.2 with Ubuntu” option. The laptop is usually with Ubuntu 14.04 as it is as long you don’t use the not-so-convenient-anyway touchpad, don’t need to use the HDMI and VGA port, and accept some slow animation from time to time.

The latter appears to be due to AMD/ATI open source graphics drivers, so I went to “Additional Drivers” and clicked on “Using Video driver for the AMD graphics accelerators from fglrx-updates (proprietary)”, and after installation the system appeared o run a bit smoother.

AMD_graphics_accelerators_from_fglrx-updatesAlbeit an extra /dev/sda3 partition appeared to have been created for swap, it was not mounted in Ubuntu, so I installed and ran Gparted to check it out, and formatted the partition to linux-swap there. And completely by modifying /etc/fstab with the line:

/dev/sda3 none            swap    sw              0       0

Since it’s not always convenient to connect a USB mouse to the laptop, I also decided to upgrade the kernel, as I explained in my “build a kernel module in Ubuntu” post. I started with Linux kernel 3.19.2, as it was the latest stable kernel at the time, but unfortunately Unity would not start anymore. So I booted again to Linux 3.13.xx installed by default in Ubuntu 14.04 and changed the graphics drivers back to the open source one, and that did the trick, with the touchpad working, but the display seemed to be using the wrong resolution, and although HDMI output worked the lower part was garbled.

Acer_Aspire_E5-421G_HDMI_Issue_640pxSo instead I installed graphics drivers downloaded directly from AMD website, and Unity would not run with either Linux versions installed.

Finally I found that Linux 3.18.9 with fglrx-updates graphics drivers work best for me. That’s how I installed that version of Linux.

cd /tmp
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.18.9-vivid/linux-headers-3.18.9-031809-generic_3.18.9-031809.201503080036_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.18.9-vivid/linux-image-3.18.9-031809-generic_3.18.9-031809.201503080036_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.18.9-vivid/linux-headers-3.18.9-031809_3.18.9-031809.201503080036_all.deb
sudo dpkg -i linux-headers-3.18*.deb linux-image-3.18*.deb

Finally Acer Aspire E5-421G laptop runs fairly well with Ubuntu 14.04 with the following working just fine:

  • 1366×768 display
  • VGA and HDMI output (with caveats, see known issues)
  • USB 2.0 ports
  • USB 3.0 port (USB 3.0 hard drive tested with 103 MB/s read speed)
  • Ethernet and Wi-Fi
  • Touchpad
  • Webcam, speakers, and audio jack
  • DVD drive and SD Card reader

However, there are still some known issues:

  • Only mirroring mode works with HDMI and VGA output (no extended display), and HDMI/VGA might be unstable.
  • It’s not possible to enable three displays (Screen + HDMI + VGA) simultaneously, I could only manage two displays at once.
  • Ubuntu will always start with the screen’s brightness set to the lowest setting.
  • Battery only lasts about 3h30 on a full charge. (not fully sure it if it an issue, or is to be expected)

If you plan to use AMD-V virtualization extension, for example for 64-bit OS in Virtualbox, you’ll need to hack UEFI settings since the option to enable it is not available by default.  Anyway, I’ve now come to a point where Ubuntu 14.04 is perfectly usable on Acer Aspire E5, although I would not have complained if the whole installation process would have been easier…

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(Most of) FOSDEM 2015 Videos Are Now Online

March 12th, 2015 4 comments

FOSDEM 2015 took place on between the 31st of January and 1st of February, and while some sessions were not recorded on videos, most of them were, and the organizers are now slowly processing and uploading 402 videos to their server. So far 210 videos have been uploaded, including the Embedded Devroom.

Fosdem_2015

You can follow the upload status to check out when your preferred track/devroom sessions are uploaded. For example, “internet of things” videos have not been uploaded so far, so you’d need to be a bit more patient for this topic.

One of such videos is “Upstream Allwinner ARM SoC (A10 / sunxi) support status”  by Hans de Goede, which includes the slides on the left and video of the right. This makes the presentation easy to follow (despite the slides being cropped), but probably explains why it takes so long to process the videos.

http://video.fosdem.org/2015/devroom-embedded/allwinner_upstream__CROPPED_PRES.mp4

You can also download presentation slides separately by going to the list of talks, clicking on the talk you want to checkout, and finally the presentation slides (if any) in the “Attachments” section. Direct link to the presentation above: allwinner_fosdem_2014.pdf.

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