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I found references to xinput list and that showed me the ETPS/2 Elantech Touchpad at id=12. Running

while true ; do xinput query-state 12 ; done

I noticed that button[1]=down remained down for the annoying 250ms, so something new in Ubuntu 20 is setting that - it didn't happen under 16.

I found the ETPS/2 Elantech Touchpad documentation here: https://www.kernel.org/doc/html/v4.14/input/devices/elantech.html

but I don't know how to find the parameters[0] values mentioned in that document.

My /sys/bus/serio/drivers/psmouse/serio2/ has reg_07 to 22, so I tried setting register 22 but it didn't seem to affect anything.

Any ideas for where else to look?

Thanks

1 Answer 1

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Why do I always find things only moments after posting?

This fixed it for me:

synclient LockedDrags=0
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  • Please use the edit link on your question to add additional information. The Post Answer button should be used only for complete answers to the question. - From Review
    – Pilot6
    Oct 11, 2020 at 12:01
  • 1
    @Pilot6 Hi. Thanks for responding. I thought it was clear from context that this was the solution. I've updated the answer to say so. If that's not what you meant, please be more explicit. Oct 11, 2020 at 16:42
  • Sry, I misunderstood the answer.
    – Pilot6
    Oct 11, 2020 at 16:44

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