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Ever seen a seemingly ok, quite new 24″ Syncmaster SA300 LCD monitor from Samsung – which refuses to show an image, but can display its own system messages? Try a firmware update! I found this solution in the PC Help Forum. A firmware update for a computer monitor you wonder? Yes! Obviously you need […] Continue reading Dark Samsung?  (see also my recent appendix to this topic: Hacking an AVR programmer II – especially if you have an ATmega88-based programmer!) On eBay I recently purchased a set of cute small USB AVR programmers which I intend to use in the course 1TE663 Microcontroller Programming at Uppsala University. MK-USBISP-V3.00 programmer in an […] Continue reading Hacking an AVR programmer  Multiplots are supported by Gnuplot, but I wasn’t satisfied with the output of the automatic routines – so I wrote my own template with placement functions. Continue reading Nice multiplots in Gnuplot  The parallel port mystery Sub-D 25 female connector Have you ever used or considered using the parallel port of your computer to control your own electronics project? Well, I have, and this was not my first project. But this time I ran into trouble… With modern versions of Windows it is not […] Continue reading Troubleshooting against all odds I I am quite satisfied with the installation of Windows 7 on my laptop which I bought in June last year. However, one thing has bothered me almost all the time: Creating a new folder in the standard file save dialog from any application did indeed create a new folder – but the display did […] Continue reading Folder refresh under Windows 7 
A couple of years ago I presented a preamplifier on my homepage which allowed it to use standard oscilloscope probes on the line input of a soundcard. This small circuit solved the problem that a soundcard has quite a low impedance on its line inputs which makes it unusable for measuring high-impedance signals. […] Continue reading A new soundcard oscilloscope  As I have reported earlier, I decided to run webmin on my new server. I have also reported about my UPS which keeps my server running whenever Vattenf*ll fails to supply my flat with electricity — at least for about half an hour before the server is controllably shut down. Now with new batteries […] Continue reading Webmin and apcupsd Today I finally managed to get the four new batteries for my UPS unit. Now everything is green again: green lights with new batteries I thought this was it – well it wasn’t… This weekend I put everything together again: the server and all four harddisks (one system hdd and three data hdds in RAID 5). I put the server in the closet where it usually resides and powered it up. Then I tried to connect to it, […] Continue reading My server – no end yet |
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