mouse cursor turns into big white square on pwr resume

[Casio]

Ubuntu set to defaults. Leave machine alone until Ubuntu goes into sleep mode i.e. monitor screen goes blank.
Press power on switch for laptop.... Ubuntu wakes up to the log on screen... but the mouse cursor has turned into a big white square approx 4cm x 4cm in size.

As a result it makes it rather difficult to click on anything.

Log in... Ubuntu desktop appears and the mouse cursor is back to being a nice sharp pointy thing!

Repeatable fault.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Libera.chat.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/2065780/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]