Ferdinand Keil's

electronic notes

Apr 06, 2020

Enabling the Watchdog on a Raspberry Pi

To increase the reliability of embedded systems - especially ones that are hard to physically access - one can use an embedded watchdog. The watchdog, once activated, will reset the system if it is not fed for a certain time-interval. This guarantees a clean reset in case the system ends up in …

Apr 04, 2020

Okt 01, 2019

Restore Default Alert Sound in Gnome (Ubuntu)

While trying to disable the terminal bell in Gnome on Ubuntu 18.04 I accidentally triggered a bug causing Gnome to play two alert sounds when triggered. The bug has been known (Ubuntu bug #1753070) for quite a while now, but unfortunately has not been fixed yet. In the bug …

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