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Category Archives: Technology

Posts that relate to technology. Reviews, HOWTO’s, problems & solutions.

Fixing Program Guide data on MythTV after Daylight Savings Time switch

I'm running MythTV (Subversion Trunk) on a Ubuntu 7.10 box. After the daylight savings time changeover, my mythtv box had the correct time, but the Program Guide data was still off by an hour.  Manually running a mythfilldatabase didn't fix it. After checking to make sure that my timezone xmltv settings were set to Auto, [...]

Human powered generator

Lots of people have built human powered generators. I like this one for two reasons:
1. It's designed to harvest waste energy. (It helps your body stop your knee from swinging at the end of the forward swing, something your body uses energy to do anyways.)
2. The evaluation included serious medical [...]

Mythtv gotchas when upgrading from Ubuntu 7.04 (Feisty) to 7.10 (Gutsy)

I upgraded my Mythtv server from Feisty to Gutsy for no good reason (other than I like the pain).
Gotchas I ran into when trying to get MythTV working again:
1. The upgrade lost/removed the libqt3-mysql support from my computer. This resulted in the MythTV applications (frontend and backend) giving "unable to connect to database" errors. As [...]

Riced Dynamo flashlight

On our van trip across the country my aunt and uncle gave us two hand crank (dynamo) LED flashlights which are really useful to keep in the van. The self-charging nature of the flashlights are very nice, in that we can leave them in the van and just wind them up when we need light. [...]

On the fly external monitor support (mirroring / spanning) on Ubuntu 7.10

My IBM X31 laptop has the capability to drive an external VGA monitor in addition to it's built in XGA (1024×768) Laptop Video Display Screen (LVDS). The new xrandr extension allows non-privlidged users to change monitor layouts on-the-fly. And now, thanks to my friend Tracy, I know the "extra magic" to make it all work.

Failing power supply

For my MythTV media computer I use a network based HD-TV tuner from SiliconDust . I've been very pleased with how it works, the form factor and feature set. However, over christmas it suddenly went dead due to no fault of it's own. The 5V 2A power supply had failed. (It is plugged into [...]

My Reading Habits: Korean

Google Reader (a web based RSS reader that I use to track and read various sites and blogs) has a recommendation system that will give you recommended blogs to subscribe to. It uses the RSS feeds that you are currently subscribed to, and then looks to see who else is also subscribed to those [...]

St. Moritz SMX Diver battery

The St. Moritz SMX Diver (a discontinued watch) uses a Silver Oxide Cell battery, Maxell SR927SW (generic 395 button cell) which is a 1.55v battery.

Tuning an ext3 filesystem for storing large media files

I added a new hard disk to my MythTV box, specifically for storing movies copied from my DVD collection. Because this disk will be used for storing mostly files that will be in the 1-4GB size range, and because it is NOT going to be used as the root (/) drive of this computer, I [...]

MythTV to phone (.3gp) transcoder script and Bluetooth transfer

I built a perl script that can be used as a "User Job" from within mythtv to convert a recorded TV program into a cell phone (.3gp) movie. It makes uses of mythname.pl to get the show and title (for the filename) and mplayer/mencoder and ffmpeg to do the actual transcoding.
Unless you want to drop [...]