LZWDecode a PDF File

Today I wanted to dissect a PDF file. Running pdf2ps quickly showed some big lumps of binary data. Looking a bit closer I found out that it is run through the filters ASCII85Decode and LZWDecode. After failing to decode this myself I searched again on the net and found the following blog entry:

Converting a PDF to PS without the LZWDecode filter

So just run the following commands:

qpdf --stream-data=uncompress original.pdf decoded.pdf
pdftops decoded.pdf decoded.ps

Avrdude Prints Part ID

Yesterday I saw the following error message of avrdude a bit too often:

avrdude: Device signature = 0x1e930f
avrdude: Expected signature for ATmega168 is 1E 94 06
Double check chip, or use -F to override this check.

Since I have a random mix of atmega 48, 88 and 168 and even some ‘p’ and ‘pa’ versions I often just try and get the error message. Then I try avrdude with some other part ID and often get more errors.

That’s why I wrote a patch (and log message) for avrdude (trunk @r1298). It just adds the device id to the output after the signature which has been found:

avrdude: Device signature = 0x1e930f (probably m88p)
avrdude: Expected signature for ATmega168 is 1E 94 06
Double check chip, or use -F to override this check.

This looks much better :)

Yes, I could use a microscope to read the part number from the chip but that’s too cumbersome. I prefer a solution where the software is telling me which part it is.

Reset Resolution of X Server after Program Crash

Today I played Warzone 2100. In the second mission in the beta camp I gave orders to build defenses, factories and other things. Then I loaded the transporter and started it to get to the missions map. But then the program crashed and left the X server in a pretty low resolution.

Now how do I reset the resolution?

Easy, the following line does the trick:

xrandr -s 1920x1080

You may have to choose the proper resolution for your monitor. Just entering xrandr without any options shows the available resolutions.

Du bist was Du isst!

Ein interessanter Artikel über die Dummheit und Faulheit heutiger Westweiber:

Tacheles! Wisst ihr, ich frage mich in der letzten Zeit, warum wir immer noch alle glauben, wir werden einmal 100 Jahre alt!

Ich bin froh, dass ich eine Frau habe, welche noch selber kocht, und welche diese Kunst auch noch den Kindern beibringt. Im Westen findet man das kaum noch, und in den USA wird heute schon mehr Geld für Medikamente ausgegeben als für gesundes Essen.