Category: Software

So I’ve been using the MBP for a while now, and it’s still taking some getting used to. It’s also still just “okay.” I wouldn’t say I’m overwhelmed with how much better it is than Windows.

Moreover, I installed updates today, and upon reboot, found that a new icon was present in the menu bar. And not just that, it gave me a nag message, asking me to sign up for MobileMe.

I have to agree with the vast number of users writing complaints that this new “feature” was unrequested, unauthorized, and undesired. (I won’t link to them here, but just a quick internet search will find them). Tactics like this will probably renew my desire to be using an opensource OS on my laptop, and there is a reasonable chance I won’t stick with Mac when it comes time to get another new laptop.

Granted, I’ve ruled out Windows too, so I’m not sure what will be next. Back to linux, and the headaches of not having powerpoint plus dealing with projectors? Perhaps opensolaris?

As an aside – also after installing the updates, my trackpad stopped working until I powered the machine off and back on — another fix which is supposedly only supposed to happen on Windows.

So after 28 years of never using a Mac, I now have one. I got it for work, in my continuing endeavor to try new things on work computers. My desktop will still be a linux PC, but my laptop is now a Macbook Pro. I’ve only had it a few days, so I don’t have a lot of thoughts about it—though I still have an open mind.

Pros:
– It looks shiny
– With a massive amount of RAM, it runs quite smoothly
– Better integration with X and native X open-source applications than achieved through Windows (and e.g. CygWin)

Cons:
– Whole new keyboard with different buttons which do different things (will take time to get used to)
– It hides what it’s doing even more than Windows, leaving the user to have no clue what’s happening behind the scenes
– New multi-touch pad is different and doesn’t have a second mouse button
– Did not come pre-installed with any games
– I really miss the home and end keys. What does exist for home and end are, first two-key combos, and second, they are more like a top-and-bottom. I don’t yet know how to go to the beginning and ending of a dialog box I’m typing in.

So anyway, there are things I like and don’t like, but there’s a lot which I won’t know until I get used to it more.

So I’ve been working with Kristina to set up her website/blog. Using WordPress to write a whole website is a quite interesting concept. In contrast: this site, or Tom’s blog, do more of embedding a WordPress blog in an otherwise functional site. But to setup a site in WordPress, you actually write all your web pages using its web interface, and tell it how to structure them.

But one of the issues is that a common practice in a website is to create a page which you don’t include in menus, but you might, say, link to it from a few special places such as an email, making it a sort of “hidden” page. But you don’t want people to have to log in to see it, you just want them to know the URL.

This idea has been suggested to wordpress, but the last comment was 6 months ago, and I’m afraid no good solution has been proposed yet. There is a workaround for the tech-savvy, namely modifying your theme to specially exclude the id of the page you want to exclude. This has two problems: (1) When doing so, the page was excluded, but some html was still generated, because it changed the formatting of the link list. (2) At kcubes.com, themes are shared across blogs, which means that if somoene else chose a specially modified theme, they would have confusing results.

Does anyone know other solutions? Is there a plug-in which provides this feature? For a while I thought “Private” would do what we wanted, but apparently that requires you to be logged in to see it. And while I’m griping, why does “wordpress private pages”, when typed into google, not give you a clear description of what exactly private pages are?

So one challenge of using Linux is trying to play Midi files. For those from the windows world, this is not an issue. There are a variety of players which play midi files right out of the box, such as Winamp or Quicktime. These can typically either use built-in hardware for playing midis (either external midi devices or a sound card with built-in midi players), or they can use internal patch sets to play the files synthetically.

On Linux, the first of these cases just works out of the box. If you have sound-card-hardware, it generally just works after you enable the sequencing kernel modules. But if you are unfortunate enough to not have such hardware (and let’s face it, the vast majority of computers don’t come with midi hardware since many users don’t listen to them), it won’t work out of the box.

The good news is that there are a few pieces of software out there which can install fake “midi hardware” so that all software can use it out of the box. One of these is TiMidity++, which I had used before without issue. But when I installed it this time around, it had very mixed results. I would play files, and sometimes hear nothing, sometimes hear stuff, and sometimes I would hear only parts of what I expected to hear. Looking into this, I eventually tracked it down to the free patch set which is available as a Linux package. As it turns out, the free patch set only contains a subset of the midi voices, and so as a result, there is silence when playing voices that are missing.

Continue reading “Midi on Linux”

So I have recently re-configured my laptop to dual boot Linux with Windows (before it was just Windows). I’ve found, since making the switch, that the main reason I still use Windows is to use PowerPoint for presentations or posters. I tried using OpenOffice for my presentation, and that’s reasonable as long as I don’t need complex figure animation (in particular custom motion paths). I actually had made one of my recent presentations totally in OpenOffice, switching back almost at the end to be able to use custom path animation. It was a bit of a disappointment, really.

So I’m interested in the existence of other open-source alternatives for presentations. Another limiting factor is that the presentation tool must also run in Windows, since most of the time projectors “just work” with Windows, while I haven’t figured out how to make them work with Linux yet (requires rebooting, for example). I’m aware of KPresenter and LaTeX-Beamer, but the options start getting slim after that. The main problem with the former is that it seems less mature than the open office one, while the latter is great for simple presentations, but not so much for figures or their animation.

So what do you use? What other options are there? Can you get good animations from elsewhere. I’ve heard suggestions that we should use flash for our presentations, but I can’t imagine having to learn it just to do a presentation.