Skip to content

Author: halfgaar

http://www.halfgaar.net/

Halfgaar is Wiebe. Wiebe is a contributing author on this weblog. He also has a lot of stuff (such as long, in-depth articles) on his personal website.

Wiebe works at YTEC, where he is a senior developer of customer-specific tailor-made software (“klantspecifieke maatwerk software“) for clients in a few select markets: wholesale, printing and healthcare.

Setting paper size in Mozilla products

Mozilla products, firefox and thunderbird, seem to have the strange behaviour of overriding the paper size set by the operating system; it scales the page to letter and then prints it to A4. Read More »

APC CS-500 causes USB disruption

I'm having a EM interference problem with the APC CS-500 UPS on two different locations. Those two locations are near each other and there seems to be something wrong the power grid in that area. Both UPS's momentarily switch over to battery several times a day. Some of these times, the apcupsd daemon sends a message saying that the communication with the UPS has been restored (and therefore it had been lost at some point). Read More »

Setting up Rsync daemon

What can you do when you want to backup your entire machine to a remote location but only have non-root shell access? You use rsyncd. Read More »

Xerox 7232 communication failure

The Xerox 7232 color laser printer we're leasing at work has a very vague problem causing communication failures all the time. When you boot it, it works fine. After a while it starts getting slow. And if you wait even longer, it doesn't work at all anymore. This happens within a few minutes. Read More »

Installing grub on RAID1

When you have your kernel image and grub boot stages on a Linux software RAID1 partition, installing grub needs a bit of trickery. Read More »

Fixing “expected NAV packet but none found” error on some downloaded DVD’s

With certain DVD's, Xine fails when seeking in the movie saying "Expected NAV packet but none found". It seems that I have finally found out how to fix this and it is not even difficult. If the theory is correct, it only happens with DVD's obtained as an ISO image. Read More »

Impossible to fix file collision when upgrading qt 4.3 to 4.5

I'm trying to upgrade my qt 4.3 to 4.5. Version 4.5 seems to be split up in several ebuils, one of which is qt-dbus. When trying to install qt-dbus, it says that the files conflict with qt-4.3. This is only normal, because in version 4.3, the files did belong to qt. Read More »

Really enabling portage compile cache

I always thought I had portage's compile cache enabled, but upon recent inspection, it appears that I didn't. What was missing, was the package dev-util/ccache. I also increased the cache size to 2 GB, as per the Gentoo documentation. Read More »

Correcting Spamassassins stale mirror configuration

My spamassassin updates daily by running sa-update. Recently, I've been getting failure notices that mirror spamassassin.kluge.net was no longer available. This was because of a known bug, apparantly. So, I deleted the MIRROR.BY file and ran sa-update again. Read More »

Adding locales in Ubuntu

I wanted the dates on my Kubuntu system to be shown as Dutch dates. Therefore, I needed to add a locale. The place to do it is in /var/lib/locales/supported.d/local. It now contains this: Read More »