BlueDevil 1.0.1 released

December 22nd, 2010 14 comments

The first minor version of BlueDevil has been released.

The changelog is:
  • Improve the overall stability of kio_obexftp
  • Fixed “Empty device name” bug by making the wizards scan until the name is fetched.
The arbal can be downloaded here with md5sum: 4558dd739a58978b93d513a45d6e6b35
A new minor release can be expected in a few days, fixing some possible bugs in the Agent.

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Improving KDE Applications Help menu “Actions Lookup”

December 22nd, 2010 37 comments

Today I have been working on a small Proof of Concept which intents to demostrate that improve the Help menu by adding an “Actions Lookup” is possible. 

At the moment this is not a planned feature, so is not going to be in KDE Platform 4.6 or even not in 4.7. If the overall feedback I get during the next days is positive I will start a brainstorming (in kde-usability I guess?) to design the feature and try to implement it for 4.7.
Some ideas I have in my mind:
  • Be able to use it as we use KRunner (shortcut + write text + enter)
  • Something to show where the action is (so the user can learn the app)
  • Search within the Handbook
  • Online search?
What do you think? would be useful have something like that in our platform?
Cyap!

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Nepomuk is not fast, is instant!

November 18th, 2010 32 comments

Everybody that has been a KDE user for the last 2 years knows Nepomuk and its bad reputation, maybe it was desired in the past, but no more. This morning I decided to get my Nepomuk up and running again, and I have to say that it is impresive! just take a look at
this video:

The only thing I had to do is modify a kernel configuration, but I had to do it because my distributionb (ArchLinux) didn’t for me, others like Ubuntu or OpenSuse have the correct value.

Execute:
sysctl fs.inotify.max_user_watches
fs.inotify.max_user_watches = 524288

If you get a value such 8000 then you have to change it, to do it:

echo “fs.inotify.max_user_watches = 524288″ >> /etc/sysctl.conf

and restart.

The only thing I’m missing now is a good plasmoid (Crystal to the rescue?).

Update: I’m using trunk (4.6), but afaik Nepomuk should be as fast as in 4.5
Dolphin searchbar is a feature found in 4.6 (to be released in 2 months)
If you update the parameter using sysctl command remember to restart nepomuk.

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Kamoso is alive!

November 16th, 2010 17 comments

After months of being almost a dead-zombie project now the Kamoso development has been resumed, we can say that it is in better shape than ever! Motivated by the QtGstreamer project, Aleix and I decided to port Kamoso to it and see how it goes (it has been the perfect excuse to revive the project). So far we didn’t regret the change. Besides the technology switch (we we’re kind of ok with libvlc), the change has given to us new forces to work on the project, let’s see what we’ve got so far:

Current features:
  • Take pictures
  • Upload pictures to facebook (kipi plugins export interface)
  • Record video
  • Upload videos to youtube
  • Burst mode
  • Smoother thumbnails view
  • Fancy overlay icons to indicate what files are being uploaded
Work in progress:
  • Add some logic to decide what microphone to use (depending on platform).
  • Facebook video support
  • Choose webcam
  • Twitpic support
The application is quite stable right now, so we’re open for feedback, to compile it you have to:
1-Have gstreamer installed (base and good plugins are needed)
3-Get Kamoso sources from git.kde.org:kamoso
Well make a release shortly, for the waiting here comes a Kamoso2 funny video:
The video’s recorded in the screencast are uploaded Ereslibre Sexy and Ereslibre Monkey.

Cya and Happy Hacking!
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Meego Conference, day 1

November 16th, 2010 No comments
As you may guess, I’m in Ireland like a lot of other hackers attending the MeeGo conference. I’ve been here since Saturday and so far I love the city and the people in here, lovely place.
Today (Monday 15) has been the first day of the conference and it has been great, good organization and a good general mood provoked by a mix of “enthusiasm and desire change things”. Maybe the worst part of the day has been discovering how little bit people know about us (KDE), many people know more or less what we are (A Desktop), but nothing solid, even some of them got surprised when I told them that the entire KDE SC is made by using Qt, definitely we’ve room for improvement in spreading our community and our software.
As a final note, today I’ve got a N900 from Nokia (Thanks!), can’t wait to hack on it and try to run Kamoso in there, would be awesome, wouldn’t it?
Time to sleep, cyap!
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My KDE’s way (for the next 6 months)

November 12th, 2010 16 comments
Today, is the last day of my holidays, I could say that it is pity, but it is not, I’m addicted to my work :$


During this relax vacations, I’ve dedicated a part of the time into analize the current situation of KDE, and with that try to find my spot between all the work that needs to be done. Probably during the next days I will publish some blog entries with the cloncusions got, but this entry is about what I’m going to do in KDE in the follow 6 months. I think that having an agenda and try to achieve it is very important to do not get distracted in the way. KDE is a big community with a lot of work to be done, is important to have clear where you want to help, and try


to find the balance between “What have to be done” and “What you want to do”.
One of the best and most impresive facets of KDE, is our implication in a lot of fields, from office applications, to “The cloud”, passing trhough PIM. With all these options, is not trivial to decide where to collaborate, again find the balance between “Where I’m needed” and “Where I want to be”.
Taking into account all of that, this is my conclusion:


Hardware:
One of the most frustrating things when you install KDE in a PC, is not been able to use some kind of hardware, for example: Webcams, Bluetooth,  Printers… This is somethign weird since all mentioned before have an excelent support in GNU/Linux. A lot of this things are more or less supported (printers for example), but they don’t have the elegance we are looking for. Other types of hardware like the finger readers are not supported at all althought there are some work done there. This is my TODO list:


  • Continue the BlueDevil development (Bluetooth)
  • Revive Kamoso (Webcam)
  • XRandR support (Screen management).
  • LibSolid asynchronous API
Zeroconf and friends:
A few weeks ago, I was using empathy when I noticed somebody called “Alfredo Rollan” in my contact list. I started to wonder who was that guy, and what was he doing in my contact list… After a while I remembered Bonjour, so I ran trhough everybody using osx to see if any of them was the so called “Alfredo”, and indeed I found him. That event started my curiosity about Bonjour, Avahi and  Zeroconf. I started to perform the typical searchs: “Avahi KDE” “Zeroconf KDE”… Then I discover our kio network:// and that kopete actually supports Bonjour (but you’ve to create the account yourself). After seeing the potential of this, I think that is very important for us beeing able to support these technologies. Image for example being at akademy and just after you connect your computer to the network you start to see a lot of people in your contact list, everybody wil be able to share the akademy photos just by clicking in one button, and you will be able to reach them just by using your file browser, all of this without configuring anything. I don’t have clear what I want to do in this topic, so before do anything I will:


  • Investigate Avahi, and what KDE supports
  • Investigate UPnP, and what KDE supports
  • Investigate Samba, and what KDE supports
  • Investigate NFS, and what KDE supports
Small things here and there:
Something that is annoying me from the current status of KDE software is that some things are “half working” or at least they are for me, and some other things are lacking the “Elegance” we want to achieve. List of things I want to do:


  • Investigate CUPS and all the “printing” thing.
  • Investigate PulseAudio and KDE Sound system (kmix, phonon)
Documentation:
As some of you may know, where I work we have the fridays free to work on what we want, the idea is to give something back to the community. After much thinking, I belive that the best I can do in that 8hours is improve the documentation in KDE. This is not a final TODO:


  • Understand how doxygen work
  • Take a look at how KDE uses doxygen
  • Take a look at how Qt and other projects does it
  • Understand the current techbase layout
  • Trace a plan.
A lot of things to do, and only 6 months ahead, beter stop talking and start to do some fresh autumn hacking icon smile My KDEs way (for the next 6 months)
Happy hacking!
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One step closer towards a KDE hal-free

October 13th, 2010 15 comments

One of the objectives that the solid team is currently working on, is the deprecation/removing of HAL as KDE dependency. We hope to accomplish it for KDE 4.6, but of course at the moment it is just that, a wish.

Anyhow the complete remove is now a step closer, thanks to Dario Freddi and Lukas Tinkl I just committed the "PowerDevil 2 UPower" backend. Right now, it is build by default but is not used if the hal backend is compiled too, so in case you want to test it you have to edit powerdevilupowerbackend.desktop and set InitialPreference = 20 (lower than the hal one).

Small entry for a small thing, but small things matter don’t they?

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Solid Sprint 2010, from my Point Of View

October 11th, 2010 3 comments

Almost 1 week has passed since Solid Sprint took place, and I’m already waiting for the next event, where I can hack side by side with KDE hackers from all the world again (Maybe in the Meego conference?). It was a short sprint but intense, productive and funny, on where we discussed and worked on some different topics. Let’s began from the start.

Organisation:

The organisation of a small Sprint doesn’t require a huge amount of time (at least didn’t this one) basically the tasks to do are:

  1. Be sure that you can attend to the sprinters and having a good place for the event (office)
  2. Propose the idea and the place to some KDE group (mailist)
  3. Decide a date doing a poll
  4. Prepare a budget for the e.V board (attendees list)
  5. Send the budget to the board, together with the event explanation and wait.
  6. Finally book the rooms, and enjoy the event.
  7. Additionally, UFOCoders and Interdominios sponsored catering for all the weekend (food and drinks), and Pizza for the Sunday lunch.

Start:

After met everybody in the room where the event took place, we went to lunch. After it we began to organize the Sprint, or better said Kevin Ottens start to explain to the rest of the team all the things that were filling the whiteboard (an entire glass wall), in it we could differ between “Discussing goals” and “Coding goals”, these last were managed by using a Kanban.

The most important point we discussed (imho) is the “Solid as a Team” one. That was something that everybody had in his mind, but it was not official. Now it is, so welcome the new Solid, reborn as a community inside KDE, containing a lot of projects like (in no particular order): libsolid, powerdevil, networkmanagement, bluedevil… So, if you have a project which is related to KDE+Hardware, don’t hesitate to contact us via kde-hardware-devel mailist).

After having discussed all the topics, we started to hack. That night (Friday) we established the first interaction between NetworkManagement and BlueDevil, it not was event using an interface or any BD/NM code, but it demonstrated to us how hard/easy it was, and that it can be done.

After a few hours of Hacking, Sebas, Dario, and I went to take some beers (Voll daaamn icon biggrin Solid Sprint 2010, from my Point Of View ), near de hotel, and discuss about random things. I love these discussions! exchange opinions and ideas about our ecosystem is, a part of entertaining and funny, one learnt a lot of things by listening to other point of views, and make your global vision better. The bad thing (if I can say something) is that I slept 4h that night :p

Middle:

The Saturday was the “Super Hacking Day”, we where in front of the computer for around 18 hours only stopping for dinner. Each person on the sprint had lunch at a different time which shows how deep where were in our personal thought’s.

The first thing I decided to do that Saturday was finish my part of Bluetooth+NetworkManagement. If started to implement some plugins for BlueDevil, when doing it I noticed some interesting stuff from BlueZ, and discover how Network interface work. So, I explained to Will what I discovered and the issues I found, and he started to research how GNOME applet/wizard handle it. I don’t remember when, but we ended up with a solution (Will did), so we hope that sooner than later we’ll have Bluetooth+NetworkManagement interaction done.

The next task I assigned to myself was a technical one (not directly user-related), add asynchronous API to libsolid. After discussin with Kevin his design, I used the next hours to learn how libsolid works, and to connect the current code with the Kevin explanation about the new design. Once I did that, I started to write some tests that will help me to design a good API and at the same time that this new API would be “unit tested” (basicaly I sued Test Driven Development). With the tsdgeos help, we got a PoC working, that helped us to decided which way we should take (use an internal QList instead of inherit it).

An finally, I started to do some fine tune into BlueDevil Wizard, to get the pairing process more stable and perfect with a major number of devices (devices without PIN mainly). I tested the new code with: Apple* stuff I grabbed from the office, Nokia headset, HTC Magic and Wiimote.

We finished the hacking session at 6am, and decided to come back at 10am, so basically I decided to do not sleep (wise decision).

End:

All the ends are sad, even if it is a good end. In the sprint cases, it is sad because the people leave in dribs and drabs, however we managed to get a profitable time to put a good end to the Sprint.

One of the objectives of this sprint was exchange projects or topics, so instead of continue hacking on BlueDevil, I decided to take another project task, in this case PowerDevil UPower Backend. So, as Dario was sitting just left to me, I asked him to explain me how to create a PowerDevil2 backend, and after he explained to me, I started to copy some code from the Hal backend and make it compile. After it we just ordered some pizza’s (Sponsored too, as the tradition says) and well, we bought too much :p

After lunch I continued with my research, this time focused on UPower, basically I compared UPower vs Hal features (the ones we are using) and noticed some things that have to be done by using another piece of software, like xrandr.

Finally we end up Sebas, Ereslibre, and I. In one of the trips to the fridge we noticed something… there were 6 Volldamn left to drink! We decided to add a sticky note (Green + Red which meant Community and Urgency), and add it to “In Progress” column. After a hard work and a lot of chatting, we moved the task to the “Done” column icon smile Solid Sprint 2010, from my Point Of View

While packing and cleaning everything, we end up at 02:00 AM talking about random stuff again, sharing ideas about KDE future, Sebas showing to us Lionmail and Crystal etc…

To end the post, I’d like to thank for:

-KDE e.V for sponsoring the event.

-Community: people and companies, who donate money to e.V, so they can sponsor the sprints.

-Interdominios for helping us with the organisation (Specially to Benito, who handled all the catering and Hotel booking)

-Solid team to be awesome.

This is pretty much all, I hope this post help you (reader) to realize how important these sprints are for us, and by extension how important the donations are.

Join the game!

5048391846 d4da10eb69 b Solid Sprint 2010, from my Point Of View

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Solid Sprint day 1, go!

October 2nd, 2010 2 comments

So, almost everybody is here finally (Albert will come tomorrow Saturday), and it has been a very profitable day. We have finished the “boring” stuff like discussing who we are (We’re the Solid team now! be aware of that :p), discussing how we can improve the upstream communication (driver developers, blueZ, u*disk/power etc) and stuff like that.

After it, we’ve done some hacking (not a lot in my case), but we managed to get Bluetooth-DUN and Bluetooth-NAP working, and we did it in like 5minutes… is what Sprints are about, right? icon smile Solid Sprint day 1, go! put Lamarque (modemmanager) and bluedevil developers together and you will get Bluetooth+Networking working :p

Now, going to sleep since the hacking will be resumed in a few hours.

Cyap!

Todo wall-list:

hacker wall Solid Sprint day 1, go!

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Solid Sprint day 0

October 2nd, 2010 1 comment

Surprisingly everything is ready for the Solid Sprint that is going to take place in Madrid, we got 1Gb connection, 50" flat screen, food, drinks, beer, coffee and of course a lot of code "hungry" icon smile Solid Sprint day 0

Sebas is already here to attend some KDE e.V stuff together with ereslibre (vice-president of KDE-España), we have had a good dinner (typical spanish bar) and now is time to sleep so tomorrow we can be with our hacker skills at 100%.

So, see you tomorrow!

PS: I wrote this post yesterday (Thursday).

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