Cinnamon 6.0.4 touchpad toggle shortcut doesn't turn the touchpad back on unless a mouse is also plugged in.

Distribution

21.1

Package version

6.0.4

Graphics hardware in use

"Intel Corporation Iris Plus Graphics G1 (Ice Lake)"

Frequency

Always

Bug description

The touchpad isn't turning back on upon hitting the touchpad toggle combination unless an external USB mouse is attatched to the computer. Whenever press the combination, the "touchpad disabled" icon appears on screen as if i had just disabled it again, and nothing else happens. The button combination does however successfully turn the touchpad off

Steps to reproduce

-Remove any USB mice plugged into the laptop (Lenovo V15-IIL)
-Set up a button combination to toggle the touchpad state
-Input the combination
Afterwards, i'm unable to turn the touchpad on through the same combination, and i need to manually navigate to the corresponding settings tab with my keyboard

Expected behavior

The touchpad is toggled on and off with each press of the combination.

Additional information

I'd like to note that no issues at all arise if an external mouse is plugged in. I can turn off the touchpad with the combination and be unable to turn it back on, then plug in my mouse and repeat the combination, and it would function as expected. I've also attempted using the "Turn touchpad on" and "Turn touchpad off" shortcuts, however both of them merely show their respective notification on screen, but don't actually change anything, regardless of the touchpad's current state or which one of the two combinations i press.

Start by reproducing the toggle shortcut on Cinnamon 6.0.4 with and without an external USB mouse, following the Lenovo V15-IIL steps in the report. Trace the touchpad shortcut handling and compare it with the settings-tab behavior; done means the same shortcut reliably toggles the touchpad on and off without a mouse.