Created attachment 118810 [details]
Screenshot of destop with unwanted image

SUMMARY


STEPS TO REPRODUCE
1. Install Distribution (Happens the same with Neon, Kubuntu, Manjara, &Fedora KDE 
2. Reboot 
3. 

OBSERVED RESULT

A an image, approximately 1.5"x1.5" with a symbolic representation of a sound card and a caption "Built-in Audio Digital Stereo (IEC958)" appears on the screen. It sometimes flickers off and on, but is generally there almost all of the time.  The image covers all other objects on the desktop.  I am unable to eliminate the image.

For what it's worth this machine has a Gigabyte motherboard, model GA-P55-USB3 with its own sound system, and there is no additional sound card. The CPU is identified as, "CPU family 6, Model 30, Intel Core i5(TM) CPU  760 @ 2.8 GHz).

As noted above, I have experienced this with the current releases of several distributions: Neon, Fedora KDE, Manjaro, and Kubuntu.  I have been using Mint KDE through version 18.3, and never experienced the problem with it.

Since this occurs with several distributions, including KDE's Neon, I assume that the core problem is with KDE.  I did not experience the problem with Suse LEAP 15.  (You might ask, "why not just use Suse?"  Unfortunately, I couldn't get some of my key software working on Suse LEAP 15.)

EXPECTED RESULT

Only desired images and information appear on the destop.

SOFTWARE/OS VERSIONS
Windows: 
MacOS: 
Linux/KDE Plasma: Neon 5.15.  
(available in About System)
KDE Plasma Version: 5.15.3
KDE Frameworks Version: 5.56.0
Qt Version: 5.12.0

ADDITIONAL INFORMATION