Getting UDEV and Touchpad to play together

One of the downsides of the HP Folio 13 is that the built in touchpad sucks – at least under Linux.  While there are some tweeks that can be done to make it “less bad”, the experience is never better then “OK in a pinch, but only just”. One of the particularly irritating things is…

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HP Folio WPA2 Wifi on Ubuntu 12.04

The HP Folio comes with a Broadcom BCM4313 802.11n Wifi module.    Getting this to work with WPA2 proved a struggle, and I had just-about given up and ordered a USB WIFI stick to get things working.  Luckily things started working with the BCM4313 card. In the end, I’m not sure “what did it” that fixed…

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DRBD for SSD+USB

Summary:  DRBD provides a nifty way of allowing a “RAID when available” setup, which offers more flexibility then MDADM.  When in “RAID” mode, DRBD performs about 10% slower then MDADM, but provides near SSD performance when DRBD is not mirroring.  Importantly you don’t need to have the USB drive connected all the time, so its…

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On-Demand RAID for Laptop with SSD and USB Disk

Summary:  DRBD provides a nifty way of allowing a “RAID when available” setup, which offers more flexibility then MDADM.  When in “RAID” mode, DRBD performs about 10% slower then MDADM, but provides near SSD performance when DRBD is not mirroring.  Importantly you don’t need to have the USB drive connected all the time, so its…

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Linux and Samsung CLX-3185FN

I recently acquired a Samsung CLX-3185FN colour laser MFC. Although the device claims to work with Linux, it is a bit of a mixed bag.  Below are my views and outcomes of lessons learned thus far. Background and Review FWIW I use Ubuntu 12.04 64-bit, and am only interested in connecting the device across a…

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DB logging With Postfix + Postgresql

Summarised database logging using Postfix and Postgresql I recently created a set-up for iPayroll Ltd to push Postfix log files in a summarized form into a PostgreSQL database, and they generously agreed – and paid me for my time –  to share this howto. Although there was a fair amount of information on a basic…

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