The only hint of a problem I can see is this from the kernel log:
[ 6402.282272] usb 5-2: USB disconnect, device number 2
[ 6405.688387] usb 5-2: new low-speed USB device number 3 using xhci_hcd
[ 6405.863785] usb 5-2: New USB device found, idVendor=1241, idProduct=1111
[ 6405.863792] usb 5-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 6405.884749] input: HID 1241:1111 as
/devices/pci0000:00/0000:00:10.0/usb5/5-2/5-2:1.0/0003:1241:1111.0003/input/input19
[ 6405.885322] hid-generic 0003:1241:1111.0003: input,hidraw1: USB HID v1.00
Mouse [HID 1241:1111] on usb-0000:00:10.0-2/input0
which is concurred by the Xorg log:
[ 6402.353] (II) config/udev: removing device HID 1241:1111
[ 6402.353] (**) Option "fd" "29"
[ 6402.353] (II) event11 - HID 1241:1111: device removed
[ 6402.361] (II) UnloadModule: "libinput"
[ 6402.361] (II) systemd-logind: releasing fd for 13:75
[ 6405.965] (II) config/udev: Adding input device HID 1241:1111
(/dev/input/mouse2)
[ 6405.965] (II) No input driver specified, ignoring this device.
[ 6405.965] (II) This device may have been added with another device file.
That suggests the mouse got disconnected and reconnected after 1h46m.
Please reproduce the problem again and as soon as it happens run:
dmesg > dmesg.txt
and send us the file 'dmesg.txt'.
Please also try a different mouse to see if that avoids the problem.
** Package changed: xorg (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1832133
Title:
Mouse unresponsive on Ubuntu 18.04
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