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Old 10-21-2019, 04:32 PM   #9
hozertech
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Join Date: Oct 2019
Posts: 2
Default XPS13 and D3100 Dock, Same issue

I am using a Dell D3100 dock with an XPS13 9365 and currently have 3 screens attached, 1 @ 3440x1440 and 2 @ 1920x1080, with the laptop screen disabled and am running KUbuntu 19.04.
kWin_x11 will use 20 to 40% CPU when connected to the dock and DisplayLinkManager will use 20 to 50% CPU only when there is movement on a screen (video or mouse mainly).
i have tried two screens, and 1 screen as well as set the laptop screen as primary with no difference, these processes use a tone of CPU as long as the dock is connected. if i disconnect the dock completely kWin drops to 1% or less CPU usage and of course displaylink is no longer needed at that point.
I have also tried Cinnamon desktop over KDE Plasma and at least there i only have to deal with DisplayLink using ton of CPU...

output of DL Linux Support Tool is attached
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File Type: zip DLSupportTool_Output_2019-10-21T08:58:47.081571.zip (1.05 MB, 0 views)
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