system shutdown

Discussion in 'UDOO BOLT' started by jfs10, Jul 26, 2019.

  1. jfs10

    jfs10 UDOOer

    Joined:
    Apr 16, 2019
    Messages:
    18
    Likes Received:
    4
    My V3 bolt has shutdown on me twice since I have had it. The system is on a UPS, and we have not lost power recently. The first time it shutdown on me, I was not around. This I was, and the machine was just sitting idle. The temps had been running between 38c-44c. Of course, the fan was running. After the shutdown, I unplugged it, and felt the heat sink. It did not feel hot. It was warm at best.

    When I tried to power it back on, it did not start up right away. It took several tries. When it booted, the fan did not turn on right away. In fact, it turned on and off a few times, then just stayed on. The temps were less than 40c

    Has any one experienced this?
     
  2. waltervl

    waltervl UDOOer

    Joined:
    Dec 12, 2015
    Messages:
    2,041
    Likes Received:
    525
    What kind of power supply? USB-C or Jack?
    What kind of OS? Did you see any events in the eventlogging of the OS?
     
    evaloverde likes this.
  3. jfs10

    jfs10 UDOOer

    Joined:
    Apr 16, 2019
    Messages:
    18
    Likes Received:
    4
    Sorry for the lack of detail. My OS is Fedora 30. I did not see any entries related to event. That is, nothing that would lead me to believe that the OS decided to shut the system down.

    My power supply is plugged into the jack. 19V 3.5A. That is plugged into a UPS so power fluctuations should not be an issue.
     
  4. waltervl

    waltervl UDOOer

    Joined:
    Dec 12, 2015
    Messages:
    2,041
    Likes Received:
    525
    Does it shutdown properly (should be visible in /var/log files) or does it crash?
    Crashing could still be power source related. Is it possible to use another adapter/wires?
    Did you install extra drivers? Did you install/update the AMD display drivers?
     
  5. jfs10

    jfs10 UDOOer

    Joined:
    Apr 16, 2019
    Messages:
    18
    Likes Received:
    4
    I don't believe the OS is the issue. It does not appear to be crashing. It seems as if the power is being turned off. I did check the power settings to make sure that it is not suspending. I did update and install AMD specific drivers that I could find. Fedora is good with AMD.

    I am going to test my UPS. I have no reason to believe that it is not working correctly, but that could be my problem.

    My son has a Mac book pro, so I will give his power supply a try. I believe it fits the specs.

    Since I don't know what is going on I am not leaving the machine on when I am not using it.
     
  6. ccs_hello

    ccs_hello UDOOer

    Joined:
    Apr 15, 2017
    Messages:
    354
    Likes Received:
    142
    re: power supply is plugged into the jack. 19V 3.5A
    Showing exactly make/model would be helpful.
    Some extremely cheap one may have one or more issues:
    - quality parts and design meeting the spec.
    - insufficient output side (DC side) filter capacitor <-- I have seen this many time
     
  7. jfs10

    jfs10 UDOOer

    Joined:
    Apr 16, 2019
    Messages:
    18
    Likes Received:
    4
  8. ccs_hello

    ccs_hello UDOOer

    Joined:
    Apr 15, 2017
    Messages:
    354
    Likes Received:
    142
    Okay, it looks that a non-OEM type of power supply 19V 3.42A (DC cable seems to be very long and not so thick, it has a thermal shutdown function, BTW.)
    At this point, there is no easy way to check if this power supply is well behaved all the time. (I have proper equipment that's why I know in a different SBC with a similar type of power supply, it did not have a large enough output capacitor so voltage dip when demand ran high.)

    I can only suggest get one of the "tested working" power supply in this forum and try again.
     
  9. jfs10

    jfs10 UDOOer

    Joined:
    Apr 16, 2019
    Messages:
    18
    Likes Received:
    4
    I will check the temps on the power supply when the machine is on. I did not consider that it was getting too hot given that the machine has shutdown when not in use but on for more than a 24hrs. I think this is probably my problem. My plan is to test with my son's Apple power supply. Although, I might just purchase a known good power supply. I would rather use the power jack over the USB-C port.

    Thank you.
     
  10. jfs10

    jfs10 UDOOer

    Joined:
    Apr 16, 2019
    Messages:
    18
    Likes Received:
    4
    I still have not had the change to try a different power supply, but it did shutdown on me again. It had only been on for about 2hrs. It was essentially idle most of the time. It was idle when it shutdown, but I was there. The CPU temps were less than 45c. The power brick was barely warm, so I don't think a power supply thermal shutdown happened. I checked the logs and did not see any evidence of the system doing a proper shutdown. It just powered off.

    I will test with a different power brick, but the Arduino still never turned off. Its light never stopped flashing. Also, I had problems getting it to power up after not being used for 4 days. I press the power button and the lights would go green for a second or two, then flip back to yellow. After 4 tries, it powered on. This is a switch that is connected to the front panel header. It is also the first time this has happened.
     

Share This Page