Interesting thread, just back in town after a week on a river in central Idaho where there is no connectivity (and I like it that way, though HughesNet is available, but was actually down for several days last week). I'm running Ubuntu 14.04. I had been arriving at a similar point after having several 3.18 (I think, it was months ago) BBB Rev C and A5A systems running htop for 90+ days. I too have noticed the dependency on the power jack. One other possible detail about that: the Adafruit "5V" supplies seem to never be actually 5V, they are always higher, and deliberately so. I have several and they are typically 5.2, 5.3, or higher, and I have wondered if this is an issue. This variance exceeds +5% on many supplies. If I run off of the USB mini B power input from a monitor hub (I have a number of older HP 1600x1200 ISP monitors with USB hubs built in) they are right at 5V exactly and don't have the reboot issue. Recently I have been buying 5V 1-2A switching wall warts from Digikey, name brands such as Triad, in hopes that they are actually 5V.
All my systems just have power, Ethernet, USB keyboard/mouse via RF dongle, hdmi video, and are running Apache and htop. I have some FTDI USB 3v3 serial adapters on the boot monitor port. I'm a Linux newbie but a hardware EE. I have a DSO, SPI and I2C analyzers, etc, and some other tools at hand which I'd be happy to apply if helpful, and have a handful of mostly Rev C BBB purchased from Allied and Newark. What is the best way to determine when reboots occur? Is there a log file I can check? I'm meaning to write some simple test code which will time stamp a file. Linux newbie like I said. Happy to test other distros. Ubuntu or Debian, perhaps I don't really care. I started with Ubuntu since I run that on desktops and notebooks. Bruce -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
