| Summary: | When using a mouse with a high resolution scroll wheel, KWin only registers every 8th scroll action | ||
|---|---|---|---|
| Product: | [Plasma] kwin | Reporter: | kdebugs |
| Component: | input | Assignee: | KWin default assignee <kwin-bugs-null> |
| Status: | RESOLVED UPSTREAM | ||
| Severity: | normal | CC: | cwo.kde, duha.bugs, kde, kdedev, nate, xaver.hugl |
| Priority: | NOR | ||
| Version First Reported In: | 5.19.0 | ||
| Target Milestone: | --- | ||
| Platform: | Other | ||
| OS: | Linux | ||
| See Also: | https://bugs.kde.org/show_bug.cgi?id=511029 | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
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Description
kdebugs
2024-04-18 09:56:59 UTC
Thanks for the bug report, and I'm sorry we weren't able to get to it yet. A lot has changed since this issue was reported; can I ask you to check if it's still happening with Plasma 6.3.5 or later? If you can still reproduce it, can you mention whether you've changed the scroll speed? If so, does resetting to the default scroll speed fix the issue? Thanks a lot! FIW, I have the same issue on some (non-bluetooth) wireless logitech mice. I think it's a libinput issue with hi-res scroll wheels; I can fix it by turning the mouse off and on, or by using one of the libinput polling monitor tools (I'd have to look up which one it was, but it requires sudo rights and the usb id, so power-cycling the mouse is more convenient). When it's in the buggy state, the kwin bug console only gets every fourth click, and I think evtest had the same result). So I suspect upstream issue. Setting to confirmed since cwo is seeing the bug currently FWIW I've not seen this issue with a wireless G502 Lightspeed or wireless M510, both Logitech Mine is a M705 (two actually, one new the other a decade or so old). I didn't see it on a M325, but I'm not sure if that one has a hi-res scroll wheel. Have either of you changed the default scroll speed? (In reply to Nate Graham from comment #5) > Have either of you changed the default scroll speed? I don't think I have, let me check... No, fifth tick everywhere and I think that's the default. It happens very intermittently - sometimes it doesn't seem to happen at all, then I wake it up from suspend, and scrolling is slow. Sometimes more often, usually days without it happening. On two different computers, but with the same model of mouse, both Fedora, one stock Plasma the other usually master. Please check if
> sudo libinput debug-events
matches KWin's behavior. If it does, then this is definitely a driver or libinput issue.
🐛🧹 ⚠️ 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! Just had it happen again, and yes, the libinput debug output matches the kwin debug console exactly. So seems to be an upstream issue. I'll wait and see if it still happens with Fedora 43, then try to file upstream. |