GPU: Refreshrate showing "undefined" because the refresh rate is <1Hz

[MX682X]

Has this issue been covered in the Wiki?

• I have read the Wiki and my issue is not covered.

Is there an existing issue reported already?

• I have searched the existing issues, it does not exist.

What is the unexpected behavior?

When the Screen is Idle, the refresh rate of my screen falls below 1 Hz. Due to the autoscaling I think the system tries to use "mHz", but it looks like it is not defined.
I think it would be best to have the autoscaling limited to "Hz" though, as values below 0.1Hz seems to be rather unrealistic in PC environments.

Steps to reproduce the unexpected behavior.

1. Increase the update interval of the extension to >= 5 seconds
2. Make sure there is nothing moving on the screen, which will force a screen refresh

Relevant log output

What distribution and version of Linux are you using?

Ubuntu 24.04 LTS

What version of Gnome are you using?

46.0