(EE) client bug: timer event3 debounce: scheduled expiry is in the past (-4ms), your system is too slow
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Internal error:   Could not resolve keysym Cut
> Internal error:   Could not resolve keysym Copy
> Internal error:   Could not resolve keysym Paste
Errors from xkbcomp are not fatal to the X server
(EE) client bug: timer event3 debounce short: scheduled expiry is in the past (-0ms), your system is too slow
(EE) client bug: timer event3 debounce short: scheduled expiry is in the past (-1ms), your system is too slow

X.Org X Server 1.20.8
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.15.0-115-generic x86_64 Ubuntu
Current Operating System: Linux myuser 5.4.0-48-generic #52-Ubuntu SMP Thu Sep 10 10:58:49 UTC 2020 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.4.0-48-generic root=UUID=fe637d00-125b-4a54-adce-3711830d450b ro acpi_osi=! "acpi_osi=Windows 2015" pci=nomsi acpi_osi=Linuxs resume=UUID=8fa6d40f-c23d-497e-9846-f6f26536690d
Build Date: 04 September 2020  01:34:27PM
xorg-server 2:1.20.8-2ubuntu2.4 (For technical support please see http://www.ubuntu.com/support) 
Current version of pixman: 0.38.4
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Tue Oct  6 20:15:43 2020
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Internal error:   Could not resolve keysym Cut
> Internal error:   Could not resolve keysym Copy
> Internal error:   Could not resolve keysym Paste
Errors from xkbcomp are not fatal to the X server
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Internal error:   Could not resolve keysym Cut
> Internal error:   Could not resolve keysym Copy
> Internal error:   Could not resolve keysym Paste
Errors from xkbcomp are not fatal to the X server