Xubuntu 19.04/xfce4: desktop wallpaper randomly reverts to default

Asked by Jonathan on 2019-10-01

I recently installed Xubuntu 19.04 on an HPE machine with an AMD processor, where I run boinc client (http://www.worldcommunitygrid.org) for long stretches of time. I noticed that after several hours, my chosen desktop background may revert to the default Xubuntu 19.04 theme. What I want to know is whether this is merely a cosmetic defect, or whether it reflects some underlying problem with the operating system (or hardware) that may also affect computational accuracy?

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Jonathan (jonathandl2) said : #1

(For those of you who are familiar with BOINC) another symptom is that if I set the BOINC client not to run automatically at startup (i.e., sudo systemctl disable boinc-client) then the boinc-manager (the GUI, accessible from the Whisker menu) isn't able to start the boinc-client program (which controls the science applications) automatically; rather, I have to manually do systemctl start boinc-client when I want to run it. (I posted to the World Community Grid forums and this appears to be a simple permissions issue, but I mention it here just in case, again, it reflects some problem with my OS install.)

Jonathan (jonathandl2) said : #3

BOINC seems to be working, and my workunits validate, but they're single-validation (i.e. nonredundant) and so I want to be especially careful.
Question is, does the random clearing of the desktop wallpaper indicate that the Xubuntu OS is somehow corrupted? i.e. Is it a symptom of a deeper problem, or is it no more than what it seems?
Is there an easy way to find out? I tried reading through the /var/log/syslog but it's hard to sort which messages are useful and which are normal.

Jonathan (jonathandl2) said : #4

Another symptom that I noticed is that sometimes if the display has been "sleeping" for a long time (with BOINC running on the CPU) then when I "wake" it "up," the screen resolution changes (icons much larger, etc.)

Can you help with this problem?

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