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by jackokring
Tue Apr 15, 2014 4:28 pm
Forum: Graphics, sound and multimedia
Topic: Using Android phone as a screen
Replies: 6
Views: 2354

A Display Screen (for Android Use?)

The topic name is not very descriptive. It could just as easily been about adding screen -R to your .profile file, for ssh usage.
by jackokring
Sat Apr 12, 2014 9:04 am
Forum: General discussion
Topic: HDMI > VGA
Replies: 11
Views: 1735

Re: HDMI > VGA

http://www.amazon.co.uk/Adapter-Power-F ... dmi+to+vga
also works with some config file edits for some monitors. Although most I've tried just work with it.
by jackokring
Sat Apr 12, 2014 8:56 am
Forum: Beginners
Topic: USB powered hub
Replies: 8
Views: 2469

Re: USB powered hub

i suppose if they sold you a top of the range laptop in the same sale package as a cheap $1 hub, then it could really be called a powered hub ... but most people when saying powered hub without a further qualifying adjective mean a hub which has some power connection which is not the connection to t...
by jackokring
Fri Apr 11, 2014 1:53 pm
Forum: Other programming languages
Topic: Free Pascal Install after Lazarus
Replies: 2
Views: 1443

Free Pascal Install after Lazarus

So if you've installed Lazarus (not a bad idea), but you want a faster command line console programming environment to make small fast utilities for scripts, then here's how. 1) Grab the docs for 2.6.4 (maybe) from the freepascal.org website and a few links later. (the .gz smallest) 2) tar xvf the d...
by jackokring
Thu Apr 10, 2014 10:33 am
Forum: General discussion
Topic: Woman's Hour Power List 2014 Game Changers - Top Ten reveale
Replies: 14
Views: 2049

Re: Woman's Hour Power List 2014 Game Changers - Top Ten rev

"When eye wer a lad, we at to rub coal brick split in arf togefur, to get radio crackkle fot makin mums singing sound like beeb, all wheel getin scripts wrote on stone fed in to puter made on spare bit from broken mine quipment."
by jackokring
Thu Apr 10, 2014 7:27 am
Forum: Wolfram Language
Topic: Wolfram Cloud
Replies: 0
Views: 10503

Wolfram Cloud

Well is sounds spectacular, and maybe would get me to move from PHP. :D The version 10 apt-get is taking it's time in raspbian jessie test distro. :(
by jackokring
Thu Apr 10, 2014 6:06 am
Forum: Raspbian
Topic: Run qt application without xmanager
Replies: 4
Views: 1616

Re: Run qt application without xmanager

The system setting is in /etc/X11/default-display-manager and is called after xinit IIRC.
by jackokring
Thu Apr 10, 2014 3:23 am
Forum: Bare metal, Assembly language
Topic: Baremetal Forth?
Replies: 14
Views: 5463

Re: Baremetal Forth?

Try xace in the GUI, for forth, or gforth. For bare metal perhaps a good option would be eFORTH written as a character device driver, and a simple pipe script kernel boot sequence. For bare metal current development, what's the point of limited USB and a micro kernel? None for me. EDIT; The issue fo...
by jackokring
Thu Apr 10, 2014 3:08 am
Forum: Beginners
Topic: Question: raspberry pi usable for me?
Replies: 6
Views: 1484

Re: Question: raspberry pi usable for me?

Eclipse is slow, and code size limited. I think netbeans is similar. There still is no Java editor which works commercial production effectively for things like refactoring and method completion, while being text CLI based. You will always be waiting, try fpc if you were ever into Turbo Pascal with ...
by jackokring
Thu Apr 10, 2014 2:41 am
Forum: Raspbian
Topic: Security Bug in Raspbian OpenSSL version
Replies: 49
Views: 13685

Re: Security Bug in Raspbian OpenSSL version

The Buffer Splurge Lotto (a.k.a Ernie 2 :D) likely gets semi random excerpts for within a "secure" (not so) memory space. This may or not contain keys. Multiple iterates maybe able (not proven) to always get the keys in time. Pants down in the window as the neighbour walks past? Rare? Is your neighb...
by jackokring
Thu Apr 10, 2014 2:24 am
Forum: Advanced users
Topic: What would be really nice
Replies: 12
Views: 2206

Re: What would be really nice

There are some cheap HDMI to VGA adapters. They work although some have problems with needing an extra USB socket. You also get better sound from what I hear.
by jackokring
Wed Apr 09, 2014 11:56 pm
Forum: General discussion
Topic: GPIO.add_event_detect bogous
Replies: 4
Views: 923

Re: GPIO.add_event_detect bogous

This behaviour is generally avoided by "hysteresis", using a "Schmitt Trigger". Also if your using 5v, be aware that a short fault on the sensor will potentially destroy the 3.3v GPIO, and so could wrong values for components.
by jackokring
Wed Apr 09, 2014 10:59 pm
Forum: Raspbian
Topic: Security Bug in Raspbian OpenSSL version
Replies: 49
Views: 13685

Re: Security Bug in Raspbian OpenSSL version

1) Redo keys, the hope being if your keys are taken, that data doesn't get updated b y a large attack due to the large number of servers. 2) Update software. This maybe done first but does not protect against already lost keys. 3) Shutdown service. Often not a possibility as it looks bad to customer...
by jackokring
Wed Apr 09, 2014 6:30 pm
Forum: General discussion
Topic: Why buy codecs? Isn't codec free?
Replies: 23
Views: 10377

Re: Why buy codecs? Isn't codec free?

There are many free compression codecs. There are paid ones too. From what I understood, the foundation gets a little from the purchase of codecs, and they are faster on the GPU. The phrase "Isn't codec free?" has ambiguity, please clarify: 1) Aren't there some free? 2) Aren't they all free? 3) Isn'...
by jackokring
Wed Apr 09, 2014 6:14 pm
Forum: Raspbian
Topic: Security Bug in Raspbian OpenSSL version
Replies: 49
Views: 13685

Re: Security Bug in Raspbian OpenSSL version

So you gave away your old keys (by step one) in order to have all your past site visitors have intercepts from them decoded?
by jackokring
Wed Apr 09, 2014 4:54 pm
Forum: General discussion
Topic: One button to power them all
Replies: 15
Views: 1781

Re: One button to power them all

Can you get the mac to read the ext4 partitions on the SD? Maybe as it's supposed to be BSD based is mac these days.

EDIT: Another Pi with a USB card reader is sort of a linux box! Or just another boot SD and a reader in the USB for the badly behaving SD. Then mount the bad SD and edit...
by jackokring
Wed Apr 09, 2014 4:39 pm
Forum: Beginners
Topic: Using VGA on a PC monotor
Replies: 11
Views: 1303

Re: Using VGA on a PC monotor

# uncomment for composite PAL sdtv_mode=2 #uncomment to overclock the arm. 700 MHz is the default. #arm_freq=800 # for more options see http://elinux.org/RPi_config.txt decode_MPG2=0x3348df94 decode_WVC1=0x9a293d32 The above part of my config.txt contains the only enabled options. Everything else i...
by jackokring
Wed Apr 09, 2014 4:32 pm
Forum: General discussion
Topic: One button to power them all
Replies: 15
Views: 1781

Re: One button to power them all

if you have not disabled the sshd server (by default it's on), then if you know the IP number of the Pi, then something like ssh [email protected].168.43.44 will connect a remote terminal to the Pi say from a desktop linux box. Though if you have a linux box you can remove the SD from the Pi and look on the SD...
by jackokring
Wed Apr 09, 2014 4:24 pm
Forum: General discussion
Topic: One button to power them all
Replies: 15
Views: 1781

Re: One button to power them all

ssh into the pi?
by jackokring
Wed Apr 09, 2014 4:20 pm
Forum: Beginners
Topic: Using VGA on a PC monotor
Replies: 11
Views: 1303

Re: Using VGA on a PC monotor

I have got my Pi working OK with a small TV with the help of some of you experts. Unfortunately, my wife wants it back to play Ratchett & Clank with a PS3. I have a PC monitor and have just purchased an HDMI to VGA + Audio Converter similar to the one FTrevorgowen suggested. I connected it to the m...
by jackokring
Wed Apr 09, 2014 4:14 pm
Forum: C/C++
Topic: FFT libs
Replies: 16
Views: 11750

Re: FFT libs

There is a videocore GPU FFT for the Pi. It was on the site news feed at one point.
by jackokring
Wed Apr 09, 2014 4:05 pm
Forum: Off topic discussion
Topic: Query on powered hubs
Replies: 4
Views: 957

Re: Query on powered hubs

On a powered hub, the "input" wire is not connected so as to draw power, or should not be by default. Some powered hubs can draw power from the input if the power connection to the hub is disconnected. Hubs which back power are not following good circuit opto-isolation practice. Cutting the 5v wire ...
by jackokring
Wed Apr 09, 2014 3:57 pm
Forum: General discussion
Topic: One button to power them all
Replies: 15
Views: 1781

Re: One button to power them all

I followed the instructions in the link above however didn't add "&" at the end of the text, meaning the program is not running in the background its just following on from the startup script... Have you plugged in a keyboard and held CTRL at the same time as the C key? The & is essential to backgr...
by jackokring
Wed Apr 09, 2014 1:41 pm
Forum: Advanced users
Topic: Heartbleed openssl vulnerability
Replies: 58
Views: 20376

Re: Heartbleed openssl vulnerability

Rather than self-sign the keys use TinyCA2 to run your own CA or use CAcert. Put that CA's certificate into each client. Then you aren't paying people but you still get the benefit of avoiding man-in-the-middle attacks. As the self sign process is like making your own CA using the same key. And you...
by jackokring
Wed Apr 09, 2014 8:05 am
Forum: General discussion
Topic: RaspBerry Pi(e) Model C (imaginations & wants)
Replies: 431
Views: 148179

Re: RaspBerry Pi(e) Model C (imaginations & wants)

The 12 QPUs inside the 3D block are the juicy bits. They are a specialised form of SIMD floating-point processor capable of an aggregate performance of 24GFLOPs at 250MHz. The VC IV architecture reference says this about them: Although they are physically located within, and closely coupled to the ...

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