Scroll mouse, keyboard constantly freezing for short time

Question

I have Ubuntu 20.04 running on a Dell XPS15-9560. Graphics card is

NVIDIA Corporation GP107M [GeForce GTX 1050 Mobile]

My scroll mouse and keyboard will freeze every several seconds for a couple of seconds and then resume. It's happened a few times while typing this message. When using the scroll mouse the scrolling will freeze and then the page jumps to the new location. This started happening recently.

The /var/log/syslog is full of these errors (nearly every second):

Dec 19 14:33:18 xps15-9560 kernel: [234236.432123] pcieport 0000:00:1d.0: AER: Corrected error received: 0000:04:00.0
Dec 19 14:33:18 xps15-9560 kernel: [234236.432151] nvme 0000:04:00.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, (Receiver ID)
Dec 19 14:33:18 xps15-9560 kernel: [234236.432161] nvme 0000:04:00.0: device [144d:a804] error status/mask=00000001/00006000
Dec 19 14:33:18 xps15-9560 kernel: [234236.432172] nvme 0000:04:00.0: [ 0] RxErr

Is this an error with the graphics driver or something else?

Thanks.

Answer 1

The problem was the usb c hub I was using to drive a second external monitor. I was using the UPGROW 8-in-1 Type C Adapter. When I swapped it out for the UtechSmart 6 In 1 USB C to HDMI Adapter with 1000M Ethernet usb hub the problems with the scroll mouse and keyboard freezing stopped.

The errors shown above continue to occur, however, but apparently those errors are not related to the freezing I was seeing.