That's something a mentor told me some decades ago. It is still true."Software doesn't rot."
Rubbish. No such thing as a fading effect over time on the hardware. What you will be seeing is almost certainly a software bug. The Linux system is hugely complex, it will have bugs in it.Martin Frezman wrote: ↑Mon Oct 09, 2017 12:46 pmMy experience, FWIW, is that there's no problems with the images or the SD cards, but there is a "fading" effect on the Pi hardware itself (including the power supply).
Usually, a reboot fixes it - so there's no real cause for alarm.
BTW, I've seen this effect on some machines, but not all. Like many other forum participants, I've had uptimes of a year or two on some Pis, with no "fading" effect.
This seems to be the most likely issue. I know project 1 lost power a few times unexpectedly. perhaps the same happened to project 2. Wish I'd backed it all up as now I'm going to have to reinstall bluez 5.43 and that wasn't particularly fun the first time.pcmanbob wrote: ↑Mon Oct 09, 2017 1:23 pmHaving had several Pi's running 24/7 I have seen failures of running software, but its normally attributable to some external problem.
Power failures and even brownouts can cause SD card data corruption which would could cause program and even OS corruption, seen this myself when power was accidentally removed from Pi.
Another cause I came across was the SD card becoming full due to me forgetting to delete all the achieved data files my program was producing, again caused SD card corruption and OS failure.