Bug 491663

Summary: The mouse cursor jumps to the upper left corner
Product: [I don't know] kde Reporter: mozo <smitha>
Component: generalAssignee: Unassigned bugs mailing-list <unassigned-bugs>
Status: RESOLVED NOT A BUG    
Severity: normal CC: aleixpol, nate
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description mozo 2024-08-13 12:20:55 UTC 
Recently after some upgrades the mouse cursor strated to jump to the upper left corner from tile to ti,e and it's very frustrating. I tested another mouse without success. The problem is presented only on X11. There's no problem with mouse jumps with other DE's I tested, and I even installed the Windows crap to test and there's no problems as well. The problem occured sometimes in Plasma 6.1.3, a few days before the 6.1.4 release.


STEPS TO REPRODUCE
1. Just use your mouse as always.

OBSERVED RESULT
The mouse cursor jumps to the upper left corner

EXPECTED RESULT
The mouse cursor should not jump anywhere.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.1.4
KDE Frameworks Version: 6.4.0
Qt Version: 6.7.2
Kernel Version: 6.10.3-arch1-2 (64-bit)
Graphics Platform: X11
Processors: 32 × Intel® Core™ i9-14900KF
Memory: 62.6 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 4090/PCIe/SSE2
Manufacturer: ASUS
Comment 1 mozo 2024-08-13 14:05:37 UTC 
It crosses my mind to try a newer video driver - now I'm with the latest Vulkan beta but the problem is still here. I have some problems with Wayland and I can't use it yet so I'm stuck with X11 and this bug drives me nuts.
Comment 2 Nate Graham 2024-08-13 16:47:23 UTC 
Can you try to figure out what triggers this to happen? Maybe try in a new clean user account with no customization and see if that's also affected. If not, then we know that it's something about your normal user account. So then you can try disabling or reverting customizations one at a time until you figure it out. Good luck!
Comment 3 mozo 2024-08-13 17:13:20 UTC 
I tried to find what triggers it but without success. I even disabled all sys tray apps but it doesn't help.
Comment 4 Nate Graham 2024-08-13 17:16:29 UTC 
Does it happen in a new user account?
Comment 5 mozo 2024-08-13 18:54:12 UTC 
I can't try for sometimes it takes hours to trigger but I have to work. With a new profile there's nothing I can use to get my job done and it will be a purposeless mouse navigating. I'll try hard to test it though.
Comment 6 Nate Graham 2024-08-13 19:02:11 UTC 
That sounds rough. Do let us know if you manage to figure it out!

I might also recommend using the Wayland session where you recommended it doesn't happen.
Comment 7 mozo 2024-08-13 19:08:19 UTC 
"I might also recommend using the Wayland session where you recommended it doesn't happen."

There are too many problems with Wayland like apps not working and a "heavy" and sluggish mouse no matter the settings so unforunately it isn't really an option. I just tested it for half a day to figure out if the mous problem will occure.
Comment 8 mozo 2024-08-14 21:40:06 UTC 
I tried a new proile and the problem doesn't occure. Now comes the hardest part for me...

Thanks!
Comment 9 Nate Graham 2024-08-14 21:45:20 UTC 
Best of luck!
Comment 10 mozo 2024-08-14 21:57:15 UTC 
(In reply to Nate Graham from comment #9)
> Best of luck!

Thanks, Up the Irons!
Comment 11 mozo 2024-08-18 11:46:31 UTC 
Nate, found it! It was x11vnc. Since it doesn't work on Wayland there's no problems. And it doesn't start with a new profile for I made it autostart for my profile. It was a tough battle but I won it :)
Comment 12 Nate Graham 2024-08-20 21:16:12 UTC 
Nice work! Might wanna report this to the devs anyway.
Comment 13 mozo 2024-08-20 22:29:48 UTC 
It occurs it's x0vncserver actually. I'll repotr it ofc :)