Critical Exponent

Knox upgraded to Leopard, and the simple printer sharing (Linux to mac) that had been so easy to set up before stopped working. After implementing the tips here and here, I discovered that the shared printer can be found under the “Default” tab of “Print & Fax”, not under the “IP” tab. Before the upgrade, the shared printer just showed up immediately.

A friend gave us a new Epson Stylus R280 printer (he’s been getting several free ones with his computer and related purchases). This is good; we’ve been needing an everyday-type printer.

I started looking for drivers. The Epson site does not support Linux, but it did point me to the Avasys site, which has a driver. Unfortunately, the source RPM wouldn’t compile, but the downloaded tarball seemed to be working fine. It asked me for the name and location of the device, at which point, crossing my fingers, I proceeded to unpack the printer and hook it up….

And CUPS just recognized it instantly! I didn’t even have to finish the manual setup of the driver I had downloaded. The test page came out fine!

Is this what life is like for Mac users?

During this vacation, I upgraded to Fedora 8. Here are some gotchas and caveats I encountered:

• Make sure you check the install image checksum. If first downloaded the installation DVD using BitTorrent. It took over a day and the file wound up corrupt. I had to download the image directly, which took only a couple of hours and worked fine. I’ve only tried to use BitTorrent for these Fedora updates, so I’m not sure whether it is inherently slow or I have it badly misconfigured; I do know it’s supposed to checksum the files to prevent corruption.

• The Anaconda installer would not run off the DVD on the laptop. I read that the fix is to append the following to the kernel boot line:

  floppy.allowed_drive_mask=0 clocksource=acpi_pm

• When attempting to initiate the install on my desktop (which I tackled before the laptop, so as to have one computer operational during the process), which has migrated over the years from customized RedHat through various incarnations of Fedora, I got an error saying that filesystems “should be specified by label, not by device name”. The fix is to rename, in fstab, /dev/hd... to /dev/sd...

• When Anaconda was trying to resolve package dependencies, it would hang at 26%. Switching to tty3, I saw the message “No package matched to remove”. It turns out this is a bug in yum. The fix is to append the following to the kernel boot line:

  updates=http://katzj.fedorapeople.org/updates-f8-yumloop.img

• I installed the Suspend2 (now TuxOnIce) kernel. I could not get it from mhensler’s repository, so I installed it from the livna repository instead. Hibernation works fine, but suspend-to-RAM is no longer working (I can’t resume, and often it seems as though the kernel is fine but the display does not turn on on resume). I am playing around with the sleep quirks to see wheter there’s some incantation that will resolve the problem, but no luck thus far. It’s a shame, too; it’s really useful to suspend at the touch of a button as I could with F7.

• The official recommendation from Fedora is not to install the proprietary nVidia video driver, as it does not play well with the rest of the system in case you need to uninstall it later. Packaged drivers are available from livna, but they are compiled against the vanilla kernel and not the TuxOnIce kernel. I tried briefly to compile the proprietary nVidia driver against the TuxOnIce kernel, but the installer had problems finding the kernel sources. I suspect this is a book-keeping problem in yum or the repos (since the sources and headers are marked as installed), but I haven’t tracked this down yet.

• At the application level, as always, I refer as needed to mjmwired for the installation of useful packages.

While the suspend-to-RAM issue is big demerit, the rest of the distribution is looking pretty good in use. I got updates of packages I use all the time, and a few things are more polished (such as the mail notification on the panel and the new gdm greeter).

You can look up studies on the genetics of homosexuality using the OMIM website. What jumps out of this collection of studies is that, for males, the genetic link appears to come through the mother (X chromosome) and that boys with older siblings are more likely to be gay. Interesting.

I learned about this through the NY Times Tierney lab. As seems to be the case every time I bother to look (is it sampling bias?), reader comments on newspaper blogs degenerate into the tangential, irrelevant, and specious. Sigh.

Some NYU students would.

Sigh.

Tip of the hat to Jeff

MRSA is no joke. I had a run-in with the superbug a few years ago. Let me tell you, intravenous vancomycin is a drudge. One can take measures to prevent its spread (hibiclens helps), but the little staph is a persistent little thing.

Now, researchers think they may have found a new treatment in French volcanic clay.

Supposedly, this picture will determine whether you are left- or right-brained. I’m not sure I believe it really is an effective test (I’d like an explanation), but it sure is an interesting exercise to make the dancer spin the other way. Try it!

Hint: force yourself to change the depth dimension so that foreground and background switch.

Thanks to Feministe for the link

In an emotional statement, the mayor of San Diego reversed his stance against same-sex unions because his daughter is gay.

I have mixed feelings about this.

First of all, I applaud a politician for having the guts to say “I was wrong” and reverse himself. I admire him for putting family above dogma and for refusing to be a hypocrite.

Second, I applaud his daughter for being open, establishing dialog, and not giving up on the bond with her father.

But, third, I feel that this shows how self-serving we are even we pretend otherwise. Supposedly one holds convictions on fundamental or controversial issues such as this because one is convinced those convictions are correct. Whether that belief comes from rational thought, from humanist principles, from religious belief, from historical tradition, the presumption in politics is that those beliefs are held and professed not because of personal gain but because they’re good for society at large. That’s certainly the way the gay marriage debate has been framed.

But if a change in your personal circumstances makes you reverse your position, what does that say about your convictions? Your arguments, your talking points, your invective now change, not because you know more about the issue, but because being suddenly associated with the victims of discrimination now puts you at a disadvantage.

Will your new position survive new changes in your circumstances?

To me, you see, a good litmus test as to whether positions are worth holding is whether, indeed, I’d continue to hold them if my circumstances changed. If I wouldn’t advocate tax cuts for the rich when I’m poor, then advocating them when I’m rich is simply selfishness. If I wouldn’t advocate more social services if I were rich, then advocating them when I’m poor is purely self-serving. And similarly, suddenly supporting gay rights only because my daughter is gay means I care about me and my own but couldn’t be bothered with those whose plight did not affect me.

This Orion article captures the anxious guilt I feel that I am not doing enough, that I never can do enough.

Mark Lilla, writing the cover story for this week’s New York Times Magazine, uses the word theotropism. While a Google search reveals that this is not a neologism, I am delighted to run across such a succint term that captures the all-too-common drive to construe the world in divine, supernatural ways. My own speculation is that this is a mechanism for making sense of the environment that was useful in our infancy, as individuals and as a species—but which now all too easily leads us astray as sects feel called upon to enforce divine will on the unbelievers and apostates.