Bug 490324

Summary: Touchpad misbehaves sometimes after resuming from suspend (Plasma Wayland)
Product: [Plasma] plasmashell Reporter: alexandermasokin
Component: TouchpadAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED WORKSFORME    
Severity: normal CC: kde
Priority: NOR    
Version First Reported In: 6.1.2   
Target Milestone: 1.0   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description alexandermasokin 2024-07-15 19:58:06 UTC 
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SUMMARY
When I suspend my laptop, sometimes the touchpad does not work properly after resuming. When I try and move the mouse cursor with one finger on the touchpad, nothing happens. When I use two fingers, the cursor moves. When I use 3 fingers, the page scrolls up and down. My USB mouse works just fine.

STEPS TO REPRODUCE
1. Log in to Plasma Wayland
2. Suspend the computer
3. Resume from suspend

OBSERVED RESULT
When I try and move the mouse cursor with one finger on the touchpad, nothing happens. When I use two fingers, the cursor moves. When I use 3 fingers, the page scrolls up and down. Note that this happens rarely.

EXPECTED RESULT
When I try and move the mouse cursor with one finger on the touchpad, the cursor moves. When I use two fingers, the page scrolls up and down. This should always be the case.

SOFTWARE/OS VERSIONS
Linux kernel: 6.9.9-arch1-1
KDE Plasma Version: 6.1.2
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.2

ADDITIONAL INFORMATION
My laptop is a Dell Latitude 3400. I am using KDE Plasma Wayland session. I am running SDDM in Wayland mode with Kwin as the compositor.
Comment 1 David Redondo 2024-07-18 14:00:57 UTC 
Can you attach a log of 

sudo libinput debug-events

when this happens?
Comment 2 Bug Janitor Service 2024-08-02 03:46:34 UTC 
🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!
Comment 3 alexandermasokin 2024-08-02 08:54:32 UTC 
I'm sorry, but this bug is very difficult to reproduce. I've already tried suspending the system 50 times. I'm now on Plasma 6.1.3, KDE Frameworks 6.4.0, QT 6.7.2, Linux 6.10.2 so maybe got fixed? IDK. I can't attach the log anyway because of the comment length limit.

Anyway I did some further searching and turns out this is a libinput issue not Plasma shell issue... So yeah close this if you like.