Bug 459847 - Touchpad gestures (4 fingers up and down) lags horribly on WindowHeap-based effects
Summary: Touchpad gestures (4 fingers up and down) lags horribly on WindowHeap-based e...
Status: RESOLVED FIXED
Alias: None
Product: kwin
Classification: Plasma
Component: Gestures (show other bugs)
Version: master
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-09-30 09:11 UTC by Moritz
Modified: 2024-03-25 02:27 UTC (History)
4 users (show)

See Also:
Latest Commit:
Version Fixed In: 6.0
Sentry Crash Report:

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Description Moritz 2022-09-30 09:11:25 UTC 
SUMMARY
The 4 finger touchpad gesture swiping up (like showing all activities and their windows) laggs horrible (like 1 fps). The other one (showing all windows, the one with the search bar) also laggs and party even freezes the system.

I can't even turn them off, please add an option for that too.

STEPS TO REPRODUCE
1. Swipe up or down

SOFTWARE/OS VERSION
SOperating System: KDE neon Unstable Edition
KDE Plasma Version: 5.26.80
KDE Frameworks Version: 5.99.0
Qt Version: 5.15.6
Kernel Version: 5.19.12-051912-generic (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 5500U with Radeon Graphics
Memory: 17.4 GiB of RAM
Graphics Processor: AMD RENOIR
Manufacturer: LENOVO
Product Name: 82KC
System Version: Lenovo V14 G2 ALC
Comment 1 Vlad Zahorodnii 2022-09-30 09:15:26 UTC 
Is this a regression in comparison to 5.25? Did you update mesa recently?
Comment 2 David Edmundson 2022-09-30 09:21:17 UTC 
Do you have similar performance issues using the shortcuts (control+f7)
Comment 3 Moritz 2022-09-30 09:45:54 UTC 
No, I just thought somebody else will report that they are laggy, but when I update kde I update my whole system. They where always laggy.


Actually the animation is smoother with a key combination? (how does this happen?) But still, after the animation the whole screen hangs for a couple of 100ms. Then it works as before.
Comment 4 Nate Graham 2022-10-09 21:31:36 UTC 
Can't reproduce.
Comment 5 Nate Graham 2022-10-09 21:32:48 UTC 
See also Bug 459845; I suspect there is a GPU driver issue causing these issues.
Comment 6 Nate Graham 2024-03-25 02:27:07 UTC 
This has been fixed in Plasma 6.