Well, we’re just two weeks away from OggCamp10. It’s all happening in Liverpool on May Bank Holiday weekend. And it’s all looking very exciting!

I went to visit OggCamp10 venue The Black-e this afternoon with Dan and it’s really cool! It’s right in the centre of Liverpool and right next to the massive and brightly coloured Chinatown arch, the entrance to the oldest Chinatown in Europe. The Main Stage is a lovely big room on the upstairs, Stage 2 and 3 are in the basement, and the exhibition/chillout area is on the ground floor by the entrance. We’re planning to have conference wifi too, supplied by one of our sponsors, The Linux Emporium.

After spending longer than planned roaming The Black-e and trying to imagine it filled with people, we walked 5 minutes down the way to Studio 2, the bar for Saturday night. Studio 2 is the “studio where Coldplay, Barry Manilow, Take That, Spice Girls & Diana Ross recorded” but is now converted into a rather unique-looking bar with food. The building is still a proper recording studio though and, in Studio 2, the padded doors remain, as does the glass window between rooms, and separate recording booths. The bar will be available from 6pm until 2am and the chef will stay on in the early part of the evening so that we can buy food there.

And finally, there’s Liverpool itself. I’ve had various slightly doubtful enquiries about whether it’s worth going to Liverpool (especially if it’s quite a way to travel). I’ve been to Liverpool a few times in my life and I think it’s a really cool city nowadays.

As the 2008 City of Culture, Liverpool has been much regenerated over the past few years and is a really interesting place to be. Lots to see as a visitor, like the big wheel down by the docks, Albert Docks themselves, the Merseyside Maritime Museum, food at the old Bluecoat School…

…and not forgetting the rather random SuperLambBanana, an “unusual artwork [that] was created to warn of the dangers of genetically modified food, whilst being appropriate to the city of Liverpool due to the port’s rich history in the trade of lambs and the import of bananas”,  and the 125 mini SLBs that have been sponsored by local (and not-so-local) businesses and are mostly located around the city just waiting to be found–including near the OggCamp10 venue:

And of course there’s loads of good food (including good Chinese restaurants right by the venue), lots of shopping down the road, and, if today’s anything to go by, lots of sunshine too.

p.s. Thanks to Dan Lynch for the first photo, and to my Mum for the last three.

This was my geeky Christmas project:

What’s happening in the video…

The red/orange lights flash faster when the electricity usage in my house increase. The green/blue lights flash faster when the electricity usage in my Mum’s house increases (though in the video, the usage stays at a constant level so the lights don’t speed up).

Initially, the lights are flashing at the default reading of 1 kW. Then as the electricity usage levels vary, the red/orange lights start to flash out of sync with the green/blue lights. After a short time, though, I switch the kettle on (you can just about hear it in the background!) and you can see the red/orange lights start to flash a lot more quickly (as the kettle takes about 3 kW on top of whatever the current reading is). The lights slow down again as the kettle switches off.

How does it work?

In my house I have a Current Cost monitor, which reads the live power usage of the house and publishes it (using IBM messaging protocol MQTT) to a server on the Internet. An application on my laptop (to which my Arduino – small circuit board with a processor on it – is connected) subscribes to the readings in real time and passes the information to the Arduino. The Arduino does some calculations to convert the readings to speed of flashing so that the higher the reading, the faster the lights flash. The Arduino uses that speed calculation to control the relay switches connected to the Arduino, which in turn control the power to the lights – when the relay allows power to the lights, the lights come on; when the relay cuts the power to the lights, the lights go off, and so on.

This slideshow on Slideshare shows the overall connections between all the parts, and some pretty pictures:

For a while I’ve wanted to update the theme of my blog but not really got round to it. So when I had a spare evening a couple of weeks back I did a bit of a search for free WordPress themes and came upon the one that now graces the area around this post (also known as Notepad Chaos).

When I set up my blog, back in March 2006, I adorned its posts (and pages) with the RedStripes theme. Which was particularly exciting because, despite never having seen PHP previously, I managed to fix a bug in it!

The RedStripes theme was always slightly awkward because it didn’t resize very well (either if you changed the size of the font, if you used page titles that were too long, or if you just added too many pages). While also rather pretty, IMHO, it was also slightly dated (I like to think ‘retro’) in style, even at the time I adopted it.

So, having seen the bang-up-to-date artistry of Jono Bacon and Stuart Langridge’s blogs (basically the fact that they have natural curves that emulate the real world, rather than straight lines), I went looking for something similar.

Notepad Chaos was one of the first I found and no matter how many themes I found this one stuck out because, well, it doesn’t look like a WordPress blog.

So I spent another couple of evenings customising it slightly to fit the content on my blog, including creating the tag cloud pinned note, and tweaking meta information in the post footers, I give to you my new theme–unless you’re reading this on the blog rather than via RSS, aggregated, or on Facebook – which would make it all rather pointless!

P.S. Coincidentally, when I first applied the new theme to my blog so that I could see how it looked and how much customisation I’d have to do, @benjamindyer was searching for something, came across my blog in the search results, and tweeted his reaction and observation (though I can take no credit for the actual design)!

Of course, just the thought of manually editing xorg.conf in this day and age shouldn’t even have crossed my mind. Especially on Ubuntu. But (as my Twitter followers might have observed) I recently acquired a new Lenovo Thinkpad at work–specifically, a T61p widescreen Thinkpad which, unfortunately, has an NVIDIA graphics card (really really bad open source support under Linux because NVIDIA won’t open up their drivers). NVIDIA, however, do provide proprietary Linux drivers which are far far better than the ATI drivers of my previous Thinkpad T41p (under either Linux or Windows).

Fortunately, while not a freedom-hater, I’m not averse to using proprietary drivers if I can’t make my laptop work any other way. And as this is my work machine, I need it to Just Work (or as close to as I can). So I installed EnvyNG (envyng-core, envyng-gtk) and ran that to install the proprietary NVIDIA graphics drivers. Incidentally, enabling the NVIDIA proprietary drivers listed in System > Administration > Hardware Drivers screwed up my graphics – I assume the drivers that Ubuntu thinks are right for my graphics card aren’t actually the right ones. EnvyNG, however, got it spot on–the widescreen display resolution (1920×1200) was automatically detected and worked straight off.

Ubuntu Desktop Effects (aka compiz)

This works pretty well. I had to look up how to enable, for example, the rotating cube (which is the ultimate desktop bling) which seemed to me to be a pretty bad Out of Box Experience (OoBE) – before installing Ubuntu on the Thinkpad, I’d booted once into Vista to check that the memory I’d installed was detected. In my brief visit, I noticed that things like the pretty semi-transparent sidebar and thought it’d be nice if Ubuntu did that without any effort on the user’s part (though, to be fair, someone else had installed Vista and, presumably, ensured it worked before shipping the Thinkpad – it would be possible to do the same for a pre-installed Ubuntu machine).

Rotating cube

My general opinion of the Desktop Effects is that while the effects themselves are amazing and a real step-up for Linux desktops, the Advanced Desktop Effects Manager, where you enable/disable the effects you want, is not incredibly easy to use. It’s often not clear what a given effect will do if you enable it. Nor is it clear what all the many many options for each effect will achieve. Really, we need a much simpler interface that has advanced options hidden away – something I’ll take a look at at some point…

The effects that I’ve enabled for now, and found useful/interesting/pointless-but-fun are:

By the way, Wobbly Windows are enabled by default. If you’re interested in knowing more about how Wobbly Windows came to be, here’s an interview with Red Hat’s Senior Interaction Designer (in 2005), Seth Nickell (PDF).

Enabling an external projector/monitor

Coming soon (as soon as I get round to taking some screenshots)…

Yesterday, Tony and I trekked to Wolverhampton, video kit on our backs, to video the recording of the last ever studio episode of LugRadio.

I feel somewhat privileged to have shared that small, sweaty studio at Jono’s house with the (current incarnation of) four large gents of LugRadio fame. And to have got on their final show (I said “Hello” a couple of times…before anyone gets too impressed!    ).

I’m by no means a serious fan-girl of the show (I’m not really part of the regular LR community – forums, IRC, etc) but I have listened to a lot of this season (Season 5) and several from previous seasons, and attended all LugRadio Live events except the first (but including LRL USA 08!). So I can tell them apart when they talk, at least.

I was sad to hear that they were quitting, though – not least because that means no more LugRadio Live! I gratuitously mentioned LugRadio Live in the editorial of the totally unrelated BCS-HCI Interfaces magazine after attending LRL 06 because it was such a good example of how a community can pull together such a great conference.

Every year I’ve been really impressed by the sheer number of people who turn up from all corners of the Earth (the furthest travelled gets a prize), including New Zealand and Hong Kong, to spend a weekend in Wolverhampton. Open Source and Linux conferences aren’t exactly a rare occurance these days but most choose to take place in a fairly glamourous or desirable location. My first LRL took place at the Wolverhampton Students’ Union…on a particularly hot weekend…without aircon. My memories include:

• It was hot.
• Mark Shuttleworth presenting about making Open Source Software more usable and attractive to normal users.
• Drinking copious amounts of free water from the bar.
• Ade getting a verbal pummelling from the female LR community members in the session about how to encourage more women into Open Source.
• Cramming into a tiny, airless BoF room to discuss the vision of lug.org.uk.
• The ‘Women in Open Source’ discussion continuing into the corridor while the next session got underway, and then in the car on the way home.
• Meeting Josette from O’Reilly and buying books from her.
• A packed room crying with laughter at Bruno’s epic talk: “This talk may contain swearing”
• Stephen Lamb from Microsoft bravely and successfully giving a presentation about Security to a room of Linux and Open Source fans.
• Being incredibly impressed by the range of speakers, exhibitors, and sponsors at this informal conference event that cost just £5 to attend.

So the following year, I went again (this time to the nicer Lighthouse venue); this time I joined The Crew – the yellow-t-shirted people who do all the ‘backstage’ stuff. Memories:

• It was another hot weekend.
• Getting up very early to stand outside The Lighthouse at 8am on the Saturday.
• Ron’s wife providing bacon butties to all the volunteers.
• Adam running down the aisle to the Rocky Theme in a dressing gown, then….in a thong….banging a gong…
• Continuing my habit of buying O’Reilly books from Josette.
• Changing a lot of video tapes.
• Setting up a lot of chairs, putting them away again, setting them up again, putting them away again…
• The low-tech wiki.
• Big LRL banners.
• Ted Haegar’s teeth.
• Being impressed yet again at the range of speakers, exhibitors, and sponsors the team had rustled up on the back of a fortnightly podcast that contains a lot of swearing.

And, bringing us right up to date: LugRadio Live USA 08:

• Tony’s fantastic trailer for LRL USA 08.
• An atypical heat wave in San Francisco (though, this being America, working aircon).
• Watching (from a distance) Adam getting frisked of his water bottles by Heathrow’s Security after having been warned three times not to carry liquids through Security.
• Jono commenting scathingly about Adam’s lack of travel experience, then thinking it a good idea to take a photo of Adam in Security….before disappearing under a swarm of Security staff supervising him deleting said photo.
• Helping ward off The Doom that kept descending on the team in the couple of days before LRL.
• Visiting Alcatraz and watching the team posing for more boy-band photos.
• Sitting in Hard Rock Cafe all afternoon and coming up with the best spoof ever…which I still think should be their Christmas Special.
• The view of Downtown SF from The Metreon’s balcony.
• The empty vastness of the venue at The Metreon when we were allowed in on Friday morning.
• Carrying (and dropping) far too many boxes of magazines and Nutsack goodies with Adam in the searing heat of the streets of San Francisco.
• Meeting Kynan, who just never stopped working!
• Being constantly amazed that Google (Google!) were bankrolling the entire event…and even bought us breakfast, live streamed to Google Video from a mobile phone (see it on YouTube here)!
• Brilliant talks from Emma Jane Hogbin (Women in Open Source), Kristen Accardi and Val Henson (Linux device drivers in 30 minutes – while baking cookies on-stage), Matthew Garrett (Power management and anger)…
• Stopping attendees sneaking into the building before the doors officially opened on the Saturday morning. The first group just sat down on the pavement and got their laptops out while they waited.
• One Laptop Per Child laptops everywhere!
• Small children – officially making this a (somewhat unlikely) family event!
• Emma Jane getting progressively hoarser throughout the weekend.
• Tedddd sprinting up and down the massive venue and videoing all the talks simultaneously.
• Jono playing ‘Jack’s Playing Ball’ on the Frets on Fire (OSS version of Guitar Hero).
• The MAKE kaleidoscope glasses.
• A significant number of the last people standing on Sunday night wearing matching free Banshee t-shirts in the bar.
• Massive Google beanbags.

And that’s just some of the things that I’ve enjoyed at LRL events. And why I’m going again this year. I’ll maybe see you there…