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I am having trouble getting apcupsd to start up properly.

When I put </etc/init.d/apcupsd start> in the GNOME startup application, apcupsd starts, but apcaccess status shows COMMLOST on the USB port. Yet, if I type in <ps -ef |grep apc>, I find a PID.

After much trial and error - putting this entry in the GNOME application startup app works. 

sudo /bin/systemctl start apcupsd

Now comm port shows Status: ONLINE Does anyone have an idea why one works and not the other?

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1 Answer 1

Reset to default
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I had the same problem with COMMLOST with a USB connection. After a lot of research, I found that with a USB connection you should change DEVICE /dev/ttys0 to DEVICE. This forces apcupsd to search everywhere to find the UPS and connect correctly.

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  • Excellent advice!
    – Wouter
    Dec 16, 2020 at 20:16

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