User manual

Chapter 7 – Troubleshooting
66 ePower Power Distribution Unit User Manual, Revision 1.1
I occasionally see the message
TX underrun, resetting buffers
in the ePower’s data logs.
Is this an issue?
This is a common house-cleaning message sent by
the kernel, when the network transmit buffers are
flushed. It can be safely ignored, and is a common
Linux notification for embedded systems. This
diagnostic output, and other, similar messages, are
enabled to help Cyber Switching’s Technical Support
in the event of a support question.
On my ePower unit, why does
the alert settings icon column
appear to flicker?
The rendering engine in some browsers, notably
Internet Explorer, can sometimes inappropriately
redraw screen content in the middle of a data update.
Once the data update is finished, the engine then
redraws the screen, causing the flicker phenomenon.
This behavior is harmless and can be ignored.
If desired, try a different browser, such as Mozilla
Firefox, for a more seamless experience.
Issue Suggested Solution