On Mon, 16 Aug 2021 at 07:29, Frederic Muller <fred@cm17.com> wrote:
Hi!

I'm using a Logitech G512 (wired) keyboard. Usually works perfectly in
the morning and little by little I get stuck with 'some' keys. I say
some because it's not regular. I press them and they don't seem to
work.. then work  "if I press harder" ... or later?

When using the native laptop keyboard, or another BT Logitech K480
keyboard the problem is not there.

I am really hesitating to bring it back as I've noticed when in the
browser or some applications highlighting the blinking character cursor,
that it actually stops blinking at times, and then suddenly either gets
3 keys typed in a row, or just a 'huge' time delay between the moment I
typed that key and the moment it appears.

Are there any reliable ways to troubleshoot and pinpoint where the issue
could be coming from?

Reliable troubleshooting would start with a very expensive USB test setup
to verify that the keyboard is working properly.  At work, when some
mouse, keyboard, display, etc. caused trouble, we would swap the suspect
component with one that was working to see if the problem moved with the
component.  Maybe you could lend the keyboard to a friend for a test.

--
George N. White III