VinzTech

There's been quite some talk about the excellent Siglent SS 3021X Spectrum Analyser. It's a great piece of entry-level hardware, especially for the pricepoint. See: https://www.siglent.eu/siglent-ssa3021x-spectrum-analyser.html and: EEVblog's review/comparison: https://www.youtube.com/watch?v=gkLciTsjGZg It's also quite hackable: https://iw0ffk.wordpress.com/2017/01/29/hacking-the-spectrum-analyzer-siglent-ssa-3021x/ You can login over telnet using: root/ding1234 as login/password. ' dmesg ', ' cat /proc/cpuinfo ' and friends tell a lot about this device. It seems it's based on an am335x chipset from TI. http://www.ti.com/processors/sitara/arm-cortex-a8/am335x/overview.html The framebuffer is accesible throught /dev/fb0 Mmm.. let's run DOOM on this thing! Fetch the same toolchain Siglent used to compile software for this spectrum analyser: https://releases.linaro.org/archive/13.03/components/toolchain/binaries/ Compile my m

When running applications such as "unetbootin" or "tuxboot", you might get a blank window, instead of the actual application. Even when running it through "gksudo", or having a decent polkit running (e.g. inside Gnome). E.g.: This is because these application use MIT_SHM (Shared memory), which for some reason does not work when running graphical applications as root, while being logged in as a regular user in X. The solution is to disable MIT_SHM. E.g.: $ sudo QT_X11_NO_MITSHM=1 tuxboot

I have been struggling a few days now to get the fantastic "backports" project up and running on my machine (Arch Linux). Here's what I had to do: First, make sure you have backport checkout out, and pulled in all the required trees: # git clone git://git.kernel.org/pub/scm/linux/kernel/git/backports/backports.git # cd backports # ./devel/backports-update-manager  Here's what I found out: - Make sure your PYTHON_PATH does not contain funny stuff - devel/pycocci expects Python 2. Arch Linux defaults to Python 3. Use a virtualenv2, or change devel/pycocci's first line to "#!/usr/bin/env python2" - devel/pycocci crashes randomly when using different threads. I have hacked the script to make it single-threaded. EDIT: This seems to be because of Coccinelle 1.0.6. It does not occur using Cocinnele 1.0.4 - Coccinelle 1.0.6 does not work with all patches included in backports, you need version 1.0.4 with python support. (bin can be found here: ht