| Summary: | "kwin_wayland" overloading CPU getting unusable desktop | ||
|---|---|---|---|
| Product: | [Plasma] kwin | Reporter: | Rafael Linux User <rafael.linux.user> |
| Component: | wayland-generic | Assignee: | KWin default assignee <kwin-bugs-null> |
| Status: | RESOLVED NOT A BUG | ||
| Severity: | grave | CC: | kde, rafael.linux.user |
| Priority: | NOR | ||
| Version First Reported In: | 5.27.5 | ||
| Target Milestone: | --- | ||
| Platform: | openSUSE | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
| Attachments: | perf.data view | ||
swrast means we're using software rendering which is a fallback. This is a setup issue. In fact, I compared two PCs with same S.O. but distinct Nvidia graphics cards. In one Wayland works but not in the other. I compared info about "Windows manager" and found two differences: 1 - OpenGL platform interface is EGL in working Wayland PC, GLX in the other one 2 - QT5 AND QT6 are installed in working Wayland PC, only QT5 is in the other one So, is it neccesary QT6 to get Wayland work?? Thank you for your comment |
Created attachment 159328 [details] perf.data view SUMMARY Enabling Wayland session in Plasma I got an unusable desktop. 1 CPU core is used at 100%). All is so slow that moving mouse takes 3 to 4 seconds each time, jumping from one place to next, like if FPS dropped all over desktop. "kwin_wayland" is the process eating CPU. These are the sub-threads involved (I got from perf.data): - kms_swrast_dri.so (repeated x 5 times) at 99.3% CPU - libc.so.6 (repeated x 2 times) at 99.3% CPU STEPS TO REPRODUCE 1. Select Wayland before authenticate user 2. Authenticate user 3. Desktop works like 1/10 of normal speed OBSERVED RESULT If I switch to Ctrl+Alt+F1 and come back to desktop, I only have mouse pointer over a black desktop. No way to click nothing, cause there is nothing to click in, only a black background and my mouse pointer. EXPECTED RESULT To work like with X Org Session SOFTWARE/OS VERSIONS Operating System: openSUSE Tumbleweed 20230527 KDE Plasma Version: 5.27.5 KDE Frameworks Version: 5.106.0 Qt Version: 5.15.9 Kernel Version: 6.3.2-1-default (64-bit) Graphics Platform: Wayland Processors: 4 × Intel® Core™ i5-6600K CPU @ 3.50GHz Memory: 31.3 GiB of RAM Graphics Processor: NVIDIA GeForce GTX 1050 Ti/PCIe/SSE2 ADDITIONAL INFORMATION Nvidia original repository drivers installed. No issues at all in X Window session.