Created attachment 102576 [details] Plasma 5.8 panel freezes when resized plasmashell freezes when a panel is resized. It does not happen immediately. Usually takes a few second of resizing to trigger the freeze. The system is running Xorg 1.19.0 with the nouveau driver (please see system details below). It was previously running a older version of Plasma and Xorg with the nvidia driver. I don't remember seeing this bug then so it may be a regression in Plasma, an issue with the newer Xorg or with the nouveau driver. Reproducible: Always Steps to reproduce (please see attached video): 1. Run a Plasma 5.8.4 with Xorg 1.19.0 and nouveau (did not try with other drivers or Xorg versions). 2. Resize a (horizontal or vertical) panel for several seconds. 3. plasmashell freezes completely (plasmoids included). System info: $ uname -a Linux marte 4.8.11-desktop-3.mga6 #1 SMP Thu Dec 1 21:43:30 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux $ plasmashell --version plasmashell 5.8.4 $ cat /etc/release Mageia release 6 (Cauldron) for x86_64 $ rpm -qf $(which plasmashell) plasma-workspace-5.8.4-1.mga6 $ rpm -qa | grep nouveau | sort lib64drm_nouveau2-2.4.74-1.mga6 libdrm_nouveau2-2.4.74-1.mga6 x11-driver-video-nouveau-1.0.13-2.mga6 $ Xorg -version X.Org X Server 1.19.0 Release Date: 2016-11-15 X Protocol Version 11, Revision 0 Build Operating System: ecosse 4.4.32-server-1.mga5 Current Operating System: Linux marte 4.8.11-desktop-3.mga6 #1 SMP Thu Dec 1 21:43:30 UTC 2016 x86_64 Kernel command line: BOOT_IMAGE=/root_cauldron/boot/vmlinuz-desktop root=/dev/mapper/Mageia-btrfs ro rootflags=subvol=root_cauldron nokmsboot splash Build Date: 01 December 2016 01:19:10PM Build ID: x11-server 1.19.0-8.mga6 Current version of pixman: 0.34.0 Before reporting problems, check http://bugs.mageia.org to make sure that you have the latest version.
After triggering this bug, I tried switching to another virtual console and then back, as mentioned in https://bugs.mageia.org/show_bug.cgi?id=19869, and it does unfreeze the plasmashell.
*** Bug 374699 has been marked as a duplicate of this bug. ***
It seems that it doesn't happen with wayland. So it might be indeed a problem with Xorg? But as KDE+Wayland is not usable yet a fix for this might be very helpful ;) There are many PC affected to this (~50% of PC I administer), which are all not usable right now...
Is this maybe similar to https://bugs.kde.org/show_bug.cgi?id=374393 ?
It does seem similar bug 374393. After a recent Mageia 6 cauldron update, I'm no longer experiencing this issue. I recommend taking a look at https://bugs.mageia.org/show_bug.cgi?id=19869 since that seems to have solved the problem.
Can you try the DRI change. If so this is the same as: http://bugs.kde.org/373131
I didn't understand the DRI thing, but I couldn't reproduce it with xorg-x11-server-1.19.1 :) So I think this is a dup of bug 373131 and bug 373427 Thanks
thanks *** This bug has been marked as a duplicate of bug 373427 ***