Tagged: hakology

Hakology Day 35 : Blog Entry

[1825]
Reflecting on the weekend, have been working on a few projects. One using the max7219 LED matrix driver, which I’m considering writing my own library for as everything i’ve tried seems to fail, I have it working and can address each LED individually but haven’t been able display anything useful ie. fonts or text effects … anyway that’s a work in progress. I turned my hand to configuring a small 1.3″ OLED screen someone donated a while back now I can see it was some kind of addressing issue in the code I initially got it running (there were 2 pixels columns on the far right filled with random bits and a couple of leading pixel columns missing) anyway its working now I noticed the version I was running was from the google code repo and checked github see if the project was still live and found some more recent libraries, installed those and that seems to have remedied the problem.
[1825]

[0023]
Managed to sort out a good method for screen capture in gnome3 debian jessie. Was having issues capturing the screen in a format I was able to get in to my editing suite. Inadvertently I found out that debian jessie has built in screencapture/screencast ability. Pressing shift+ctrl+alt+R, a small red dot will appear in a panel near your login/logout  panel to show if you are recording, files are automatically saved to your home videos folder, to stop recording just hit the keyboard shortcut again.

These files happen to be in webm format, I havent yet tried running the webm files through handbrake to see if I can convert them to mp4 as my editing suite doesnt natively support webm and one huge problem with the built in screencast is it only records my desktop and no audio. (Maybe I’m doing something wrong, would be easier to just use the built in screencapture)

So eventually my final solution was to record using kazam to mp4, this captured the video + audio, was even hoping I wouldnt have to transcode it again, but still the default format output by kazam isnt compatible with vegas, I then ran the files through handbrake and imported them and everything seems ok … now all the audio syncs with the video perfectly.

Its a bit of a mess/bodge job but it works, maybe if I get some time in future I might have a look see if its possible to edit the default screencast settings to capture audio+video and output to a compatible format preferably mp4.

NB. The default screen recorder only allows you to record for 30 seconds use the following line in terminal to change the maximum record time.
gsettings set org.gnome.settings-daemon.plugins.media-keys max-screencast-length 45
[/0023]

Hakology Day 24 : Blog Entry

[0821]
I thought I’d finally shook this cold, seems to have moved on to my chest, in between coughing and blowing my nose will try and get some more recording done today. I hate being ill. On the plus side I got that website up and running.
[/0821]

Hakology Day 23 : Blog Entry

[1152]
Chores done back to work.
[/1152]

[1628]
Spent the last five or so hours preparing to record and tidying up. When I said chores done didn’t realise everything else I’d got left to do would take so long but its always the way I suppose. Knocked out a load of jobs that needed doing, still having some issues with the website I’m trying to setup but I’m sure its just me being a newb. Have a friend coming over for a couple of hours and that will leave me with the rest of the evening to finish off the latest video.
[/1632]

Hakology Day 22 : Blog Entry

[0835]
Back and fighting fit.
[/0835]

Some bargains I managed to grab yesterday … 9 books in total for £1.50 not bad when you consider these would have cost over £200 to buy when new. Old but always interesting looking at concepts, examples and principles.

dsc08127

[1559]
Have made good progress recording the latest video need to divert some time to some RL development will be back online a little later.
[1600]

[0449]
Got a little carried away working on that website, back to recording later today.
[/0449]

Hakology Day 19 : Blog Entry

[0756]
Nice hot brew and to call my ISP and figure out why their automated system hasnt automated adding and configuring the website I registered yesterday, meh, I bet the support line isnt open till 9.
[/0756]

[1127]
So I logged a ticket earlier, checked back at 11 for an update, but nothing. In the process though I found a bug on my ISPs management interface and have just reported it. Nothing like a good vulnerability to start the day. Think they’ll sort the hosting out this afternoon. 🙂
[/1127]

[1250]
Just getting some advice on responsible disclosure from the 2600 bunch. Cant wait to do a little write up on what exactly was happening and how I came across it. A little bit gutted they don’t have an active bug bounty program.
[/1250]

[1424]
Well fun over for the morning, back to preparing notes and research. I say research … I’m currently working on some game hacking lol which might involve some impromptu gaming. All the notes for the next hakology video are ready, looking for some new projects and interesting stuff for you lot.
[/1424]

Intel Pentium A80502133 SY022 92/93
Intel Pentium A80502133 SY022 92/93 L7091608-0303 ICOMP 2 #=111

[1441]
Pic of the day today goes to … one of my old processors I’m trying to find my old DX33 but this is the oldest one I could find for the moment. 133Mhz of joy back in the day.
[/1441]

[1741]
HACKS!!!! Hacks a plenty today. Just hacked my first game oh yea! Working on something that’s not been looked at before which is also fun 😀
https://en.wikipedia.org/wiki/ToeJam_%26_Earl
In case you were wondering.
[/1741]

[0218]
Enjoying a coffee and reflecting on the day.


[/0218]

Hakology Day 15 : Blog Entry

[1005]
Wow two weeks, time flies when you’re having fun. Knuckling down again today hopefully somewhere near to completing the gqrx video. Spent some of the weekend teaching a friend python and the other half modding my retropie. After spending a few days working on it, its coming together quite nicely. Loads of classics, managed to setup dosbox and test some ports. NB. Some ports seem to FUBAR the card / os / boot. Select carefully when installing them. Once you have a good working SD card F£$%ING image it (*as regularly as possible whilst building your retropie install*) I’ve had to start from scratch a few times, once is annoying but on your fifth attempt it starts to get a little frustrating.
Right coffee and breakfast time.
[1013]

[0034]
Ended up having to help a friend out earlier, but back to the computing now. Looks like gqrx is even easier to setup in linux than in windows that makes a nice change.
[/0034]

[0224]
Notes written and I think i’ve worked out how to record the linux installs. Even managed to get the RTLSDR working in vitual box, but its bit late to start recording.
[/0224]

Hakology Day 13 : Blog Entry

[0006]
Had a really chilled out day today, think I deserve one after the last twelve days! Visited a friends and took the RPi3 loaded with retropie and about twenty games, not the best games but a selection of a few good old ones. Spent the entirety of the evening chatting about old computers and consoles, by the time I was leaving they wanted me to order another for them, they were that impressed.

Just going to spend a few hours on the SDR and have a quick blast on steam. Hope you lot have a wicked weekend, having fun, doing all the hacks, will be back blogging tomorrow. Peace.
[/0006]

[0414]
Heavily modding the retropie install.
[/0414]

Hakology Day 12 : Blog Entry

[1521]
Kettle is on. Coffee to be made. So day twelve begins.
[/1521]

[1530]
Tunes turned to 11 … its Friday!
Operation pre-weekend tidy up has begun.
[/1530]

[1653]
Slow start, written up all the notes for the SDR# tutorial, might have a go at recording it later, need to clear some space in the garage for some new equipment arriving soon.
[/1653]

[1913]
Just had a little jam on my drums .. its been way too long. Great warm up for some FPS.
[/1914]

[2044]
Right time to do something productive.
[/2044]

[0103]
Uploading SDR# tutorial, writing up notes in to a new post.
[/0103]

[0200]

Really quick video showing you how to install and setup SDR# under windows.
Moving on to linux and gqrx next.
[/0200]

[0321]

[/0321]

 

Hakology – Retropie HDMI audio fix

No audio over HDMI on retropie? No problem, here’s your solution i’ve seen a few fixes on the web lots varied some were overly complicated so I decided to write up a really simple fix. Tested and working on the RPi3MB.

Boot retropie
Go to the retro pie menu
Go to the audio menu and press ‘A’
Ensure HDMI is selected, also check the mixer volume is at 100%
Save settings and return to the retropie menu
Quit emulation station
Run …
sudo nano /boot/config.txt

uncomment the following …
#hdmi_drive=2
so it looks like this …
hdmi_drive=2

also uncomment …
#hdmi_force_hotplug=1
so it looks like this …
hdmi_force_hotplug=1

Press ctrl+x to save the file.
now run …
amixer cset numid=3 2
and ..
sudo reboot

Hopefully you should now have audio over HDMI