If system goes to standby, screen off, not hibernate or suspend, during lock screen process, and some notification happens in background, popup freezes, with no message, making all area of plasma shell unresponsive. The only way to recover is explicitly kill plasmashell and restart it. 100% reproducible, but the screen need go to standby. Reproducible: Always Steps to Reproduce: - Assure that some notification popups often ( i use kmail inbox notifications ) - Lock screen - Waits to standby ( i use to close laptop lid ) - Unlock the screen. - If notification happened, the popup bubble will appears in a blank mode blocking any action on the interface Expected Results: No block
That sounds very strange, and I cannot reproduce this here. I ran knotificationdbustest (which yields a couple of notifications), turned off my screen, locked the screen and shut the lid. After resuming and unlocking it continued normal.
Never seen that either. What versions are plasma-workspace and knotifications framework? Also kwin? Also have you tried to stop compositing and restart it?
Created attachment 90010 [details] Effect with plasma locked
Already did the compositing stop/start Even changed the compositors. still stucked. I'm looking for relevant entries on xsession-errors $ kwin_x11 --version kwin 5.1.90 plasmashell --version plasmashell 5.1.90
Are you by any chance using Oxygen plasma theme?
Nope Using breeze for everything, including kwin theme. Yesterday happened twice with new build, one int eh regular night-> sleep lock machine and other during he day when i locked. I noted one thing, my vpn that was usually connected on plasma-nm always disconnect when this plasma bugs happens, meaning can be something related to nm notifications not playing nice when screen is off.
Confirmed, just happened here as well, plasma froze and I couldn't unlock
I'm wondering if the plasma freeze is network manager's fault. There's another report linking that freeze to NM and the notification popup is just an ordinary Dialog, the same as all applets. Can you guys try gdb into plasmashell and see if you can get a trace of where it is frozen? I can't reproduce even if I create 100 notifications while being in lockscreen.
I am also affected by this issue. I am running 5.2 on Fedora 21. It did come to my notice after I unlocked my system. I tried to replicate it by setting up "sleep 5 && notify-send "hello"" then lock and then suspend but I can't replicated. Toggling desktop effects has no result. I can continue to use apps and switch among them but panel gets frozen. kquitapp5 plasmashell didn't kill the shell but killall did. After I "killall plasmashell" kmix crashed with segmentation fault. Unfortunately I didn't save the crash report.
Somehow all these reports seem to come from Fedora and Fedora only...I'm starting to suspect there's something astray in the Fedora system, somewhere. Many people also mentioned network manager (connection notification after resuming from suspend etc), so could you guys just remove the network manager applet and try using the desktop for a while and see if it still happens?
+1 hitting this on F22 Alpha1. I'm using NetworkManager applet and I can't easily disable it. I may try it this weekend.
Suspicions are an intel video driver issue, https://bugs.freedesktop.org/show_bug.cgi?id=84252
For posterity, seems one reason many fedora users are hitting this, is due to intel video driver being built to enable DRI3 support, which upstream currently recommends against, see: http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/commit/?id=b6eeb7a1f7efa591504070b606be655e27e6e9c2 Fedora may issue driver updates to disable this too soon, see downstream bug, https://bugzilla.redhat.com/show_bug.cgi?id=1223477 for tracking purposes.
This should be fixed now in fedora in general (in other components like drivers, xorg-x11-server, libxcb)
For what its worth im also experiencing these freezes. Since i do not lock my system i do not know how to make them happen at will because everything is fine after reboot. But some hours into the day problem appears, and it is not only notifications. Changing sound for example also makes it freeze, i believe due to displaying sound level indicator overlay thing. This never hits without notification being popped, be it network manager, spotify, firefox or anything. Its always notification (and well adjusting sound). Also using intel graphics here and archlinux. According to PKGBUILD of xf86-video-intel package dri3 is not explicitly enabled.
Forgot to mention that restarting plazma makes freezes go away. Probably important detail.
*** Bug 341988 has been marked as a duplicate of this bug. ***
Created attachment 97639 [details] plasma freeze after resuming from lock The freezes are back for me. I am on Plasma 5.5.4 on Fedora 23.
fyi, a recent fedora update (re)enabled dri3 by default, https://bodhi.fedoraproject.org/updates/FEDORA-2016-606ca05253 you can try forcing dri2 mode, and see if that helps, doing something like creating a snippet: /etc/X11/xorg.conf.d/20-intel.conf containing: Section "Device" Identifier "Intel_Graphics" Driver "intel" Option "DRI" "2" EndSection
Thanks Rex, that did help.