Monthly Archives: October 2010

Fix WiFi driver after kernel update

If you have a Broadcom BCM4315 802.11 Hybrid Wireless Controller on a Dell Vostro 1520 laptop computer and you run Kubuntu 10.04 Lucid Lynx, you may be experiencing trouble after a kernel update via Kubuntu update manager: the WiFi is … Continue reading

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Fix slow waking from hibernation (disk suspend) in ubuntu

Waking up from hibernation is dead slow in Kubuntu Lucid Lynx 10.04, because it’s using by default the kernel-mode as suspend back-end. To fix this in two steps: install userspace software suspend: sudo apt-get install uswsusp update the confuguration: cat … Continue reading

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smfpd, the useless daemon installed by Samsung printer drivers sucks

I own a Samsung CLP-…N network (ethernet) printer so I have installed on debian the Samsung Unified Linux Driver. This includes smfpd, Simple MFP Daemon to “provide access to parallel port via tcp”. Who uses parallel ports anymore ? Running … Continue reading

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Reaction-Diffusion

Reaction + diffusion is a common combination of phenomena studied by chemical engineers, which could be described by these equations: “where u and v are the concentrations of hypothetical factors, f and g are the reaction kinetics and Du and … Continue reading

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