http://bugzilla.opensuse.org/show_bug.cgi?id=1140777
http://bugzilla.opensuse.org/show_bug.cgi?id=1140777#c6
--- Comment #6 from S. B.
Hm, can you narrow that down a bit maybe?
There haven't been any relevant Plasma/KDE/KF5 updates last week. Plasma 5.12.2 was published on Fri, Jun 28th already.
Qt has been upgraded to 5.13 on Sun 30th (which of course *might* be the reason).
Ah, yes, I should have mentioned that I sometimes let a few weeks go by without updating. I see in my YaST Packages history that there were a ton of libKF5* updates to 5.59.0 on 27 June. But I'm pretty sure that's NOT the issue, because I just started hitting this bug yesterday or maybe the day before at the earliest. I got the Qt 5.13 upgrade on 3 July, and on Friday 6 July I had trouble when I used VirtualBox for the first time after the upgrade due to a major confirmed Qt 5.13 bug. I also see 2019-07-03 11:13:48|install|kwin5|5.16.2-1.2 Then on 4 July I see some Mesa updates and also a lot of plasma5-* at 5.16.2-1.1 and also plasma-framework 5.59.0. So I'm not sure why I started hitting this issue yesterday. I somehow suspect it has something to do with system load, especially RAM situations, since yesterday was the first day after the major updates that I was running my Windows VM in VirtualBox. I use zRAM and sometimes hit the memory pretty hard. It seemed to be after high RAM usage situations, even after freeing up plenty of RAM, that this glitch started happening. But I'm not 100% certain.
But, there was a kernel update as well. Have you tried to boot the previous kernel?
Ah, you're right. I'll give that a try later. Thanks.
It might be a problem/regression in the intel kernel driver.
But remember that I usually use X modesetting. I did try installing the Intel driver after running into this bug yesterday, which made no difference.
Btw, kwin's compositing settings are (likely) irrelevant here. The desktop and notifications are rendered using QML/QtQuick, which always uses OpenGL. You can switch to software rendering in "kcmshell5 qtquicksettings", maybe that would help as a workaround at least.
Wow, first time for me seeing that one! :-)
Also, it's not really clear from your description, but does the desktop freeze completely, or is it "just" a rendering problem? Do applications continue to work?
It's not a complete system freeze. It mainly seems to be the panel and notifications. Applications continue to work, as does Alt+Tab switching. But clicking on running applications in the panel does nothing. Also files on my ~/Desktop do not update after adding or removing them when this bug appears. Also Krunner does continue to work, which lets me kill and restart plasmashell.
Please try kwin5 from here: https://download.opensuse.org/repositories/home:/wolfi323:/test/openSUSE_Tum...
Great, that's what I'll test throughout my workday today, no other changes. Still kernel 5.1.15-1-default and X modesetting driver. Oh, and do you need a `hwinfo` dump from me? Thanks for the help! -- You are receiving this mail because: You are on the CC list for the bug.