Mint 20 with Cinnamon on Dell Precision 5530, 6 Xeon cores and Nvidea graphics. Using Dell D6000 dock, one HDMI 28inch 4K-capable display attached (though only using 2560x1440).
The driver is using up to 80% CPU at times. The desktop is visibly slower and choppy.
The visible behaviour (though not the CPU consumption) is better with the proprietary Nvidea driver than Nouveau, but still annoyingly suboptimal.
Interestingly the display works without the DisplayLink driver with no CPU issues - using the legacy kernel one? I don't know.
Quite apart from all that, though, the setup is unusable because when the screen 'goes to sleep' an attempted awakening causes the elsewhere-reported X crash loop, Reboots do the same. It requires a very tiresome specific sequence of actions to make it all work again.
The intention was to add a second screen using DisplayPort, but this does not look viable with this setup.
Martin Bartlett
Mint 20 with Cinnamon on Dell Precision 5530, 6 Xeon cores and Nvidea graphics. Using Dell D6000 dock, one HDMI 28inch 4K-capable display attached (though only using 2560x1440).
The driver is using up to 80% CPU at times. The desktop is visibly slower and choppy.
The visible behaviour (though not the CPU consumption) is better with the proprietary Nvidea driver than Nouveau, but still annoyingly suboptimal.
Interestingly the display works without the DisplayLink driver with no CPU issues - using the legacy kernel one? I don't know.
Quite apart from all that, though, the setup is unusable because when the screen 'goes to sleep' an attempted awakening causes the elsewhere-reported X crash loop, Reboots do the same. It requires a very tiresome specific sequence of actions to make it all work again.
The intention was to add a second screen using DisplayPort, but this does not look viable with this setup.