| Summary: | After Plasma /KDE updates today (11-16-15) Plasma desktop has slowed to a treacle. | ||
|---|---|---|---|
| Product: | [Plasma] kwin | Reporter: | SP <scp.stjohn> |
| Component: | general | Assignee: | KWin default assignee <kwin-bugs-null> |
| Status: | RESOLVED WORKSFORME | ||
| Severity: | grave | CC: | bhush94, plasma-bugs |
| Priority: | NOR | ||
| Version: | 5.4.3 | ||
| Target Milestone: | --- | ||
| Platform: | Fedora RPMs | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed In: | ||
| Sentry Crash Report: | |||
| Attachments: | Output of qdbus org.kde.KWin /KWin supportInformation with various compositing options | ||
|
Description
SP
2015-11-16 19:49:26 UTC
Ok - seems to have been a compositor problem. Selecting and applying xrender in the compositor seems to resolve the problem - as does reselecting and applying OpenGL 3.1 Problem is ongoing. Seems to be related to compositor and definitely has only occurred even after today's updates. My other machine has identical hardware/software except that I have not applied today's plasma updates. That machine works fine. Even typing this text is extremely difficult as the input gets halted. please attach the output of
qdbus org.kde.KWin /KWin supportInformation
once obtained with slow GL compositing and once with resolved (when reselecting GL 3.1)
Created attachment 95568 [details]
Output of qdbus org.kde.KWin /KWin supportInformation with various compositing options
There have been similar problems with slight improvement today 11-17-15 after Qt and other updates. After selecting EGL and rebooting there has been a vast improvement and return to normal. (This was previously not the case with selecting EGL.) Even the flickering on my dual monitor setup has disappeared. I attach the output of qdbus org.kde.KWin /KWin supportInformation with various compositing options. I did not reboot between compositing changes. Please let me know if that is required. Thanks. > OpenGL renderer string: Gallium 0.4 on AMD TONGA (DRM 3.0.0, LLVM 3.7.0) That would be the new AMDGPU driver, yes? > Plugin: org.kde.kwin.aurorae > Theme: __aurorae__svg__air-oxygen "kcmshell5 kwindecoration", please try the breeze decoration, esp. the air-oxygen theme has cause countless bugreports in the past... You don't have to reboot between changes, but i'm esp. interested in the supportInformation when it does *not* work. So what's the status quo? No issues with EGL but GLX is slow unless you change settings? Does a suspend/resume cycle of the compositor (SHIFT+Alt+F12) help itr. as well? >That would be the new AMDGPU driver, yes?
Yes - the new AMDGPU driver.
>So what's the status quo?
With EGL everything just works perfectly now. Do not know why that is - as selecting it previously did not resolve the issue. Suspending and resuming the compositor (when things did not work) did not resolve the problem.
I have since updated my other computer which has identical hardware and software. I selected EGL there first and everything works fine after the updates.
I do not know what it was in 11-16-15 updates that caused the problem (they were mostly Plasma updates) - but having a computer rendered unusable by an update is no fun at all. It is frustrating that I cannot identify the exact component that caused the problem - but whatever it was - it seems to be remedied now. Thank you, Thomas.
possible causes - buggy and fixed AMDGPU - buggy and fixed MESA - buggy and fixed or wrong X11 driver The answer is probably in the update logs, notably the second one (may have brought missing package/update or fixed a bug in a package also seen in the faulty update) |