I did my dist-upgrade today, but after reboot, the KDE panel is freezing all the time. It works for the first 1-2 minutes when system is the desktop starting. After that it's frozen and when I click on it, it takes few minutes to respond. Then the menu is obstructing other elements, until I'll click again and wait another few minutes. Also it doesn't show any tasks. I can't use it at all. Reproducible: Always Steps to Reproduce: 1. Reboot the machine. 2. Log-in 3. First few minutes it works. 4. After system is fully booted, plasma-desktop panel is freezed. That means it doesn't react on click, and if it does, it takes few minutes to respond. Expected Results: I expect it to work as before the upgrade. $ grep kde-plasma /var/log/dpkg.log | grep 2012-09-19 2012-09-19 12:41:35 upgrade kde-plasma-desktop 5:71~pre15ubuntu12.3 5:71~pre15ubuntu12.4 2012-09-19 12:41:35 status half-configured kde-plasma-desktop 5:71~pre15ubuntu12.3 2012-09-19 12:41:35 status unpacked kde-plasma-desktop 5:71~pre15ubuntu12.3 2012-09-19 12:41:35 status half-installed kde-plasma-desktop 5:71~pre15ubuntu12.3 2012-09-19 12:41:35 status half-installed kde-plasma-desktop 5:71~pre15ubuntu12.3 2012-09-19 12:41:35 status unpacked kde-plasma-desktop 5:71~pre15ubuntu12.4 2012-09-19 12:41:35 status unpacked kde-plasma-desktop 5:71~pre15ubuntu12.4 2012-09-19 12:41:36 upgrade kde-plasma-netbook 5:71~pre15ubuntu12.3 5:71~pre15ubuntu12.4 2012-09-19 12:41:36 status half-configured kde-plasma-netbook 5:71~pre15ubuntu12.3 2012-09-19 12:41:36 status unpacked kde-plasma-netbook 5:71~pre15ubuntu12.3 2012-09-19 12:41:36 status half-installed kde-plasma-netbook 5:71~pre15ubuntu12.3 2012-09-19 12:41:36 status half-installed kde-plasma-netbook 5:71~pre15ubuntu12.3 2012-09-19 12:41:36 status unpacked kde-plasma-netbook 5:71~pre15ubuntu12.4 2012-09-19 12:41:36 status unpacked kde-plasma-netbook 5:71~pre15ubuntu12.4 2012-09-19 12:50:02 configure kde-plasma-desktop 5:71~pre15ubuntu12.4 <none> 2012-09-19 12:50:02 status unpacked kde-plasma-desktop 5:71~pre15ubuntu12.4 2012-09-19 12:50:03 status half-configured kde-plasma-desktop 5:71~pre15ubuntu12.4 2012-09-19 12:50:03 status installed kde-plasma-desktop 5:71~pre15ubuntu12.4 2012-09-19 12:50:03 configure kde-plasma-netbook 5:71~pre15ubuntu12.4 <none> 2012-09-19 12:50:03 status unpacked kde-plasma-netbook 5:71~pre15ubuntu12.4 2012-09-19 12:50:03 status half-configured kde-plasma-netbook 5:71~pre15ubuntu12.4 2012-09-19 12:50:03 status installed kde-plasma-netbook 5:71~pre15ubuntu12.4 $ lsb_release -d Description: Ubuntu 12.04.1 LTS $ uname -a Linux kenorb-HP-Compaq-8100-Elite-SFF-PC 3.5.0-15-generic #20-Ubuntu SMP Tue Sep 18 05:51:20 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux $ dpkg -l | grep plasma-desktop ii kde-plasma-desktop 5:71~pre15ubuntu12.4 KDE Plasma Desktop and minimal set of applications ii plasma-desktop 4:4.8.5-0ubuntu0.1 KDE Plasma workspace for desktop and laptop computers ii plasma-desktopthemes-artwork 4:4.8.5-0ubuntu0.1 desktop themes for KDE Plasma Workspaces $ xwininfo xwininfo: Please select the window about which you would like information by clicking the mouse in that window. xwininfo: Window id: 0x20001ca "plasma-desktop" Absolute upper-left X: 0 Absolute upper-left Y: 1052 Relative upper-left X: 0 Relative upper-left Y: 0 Width: 1920 Height: 28 Depth: 32 Visual: 0x82 Visual Class: TrueColor Border width: 0 Class: InputOutput Colormap: 0x2000001 (not installed) Bit Gravity State: NorthWestGravity Window Gravity State: NorthWestGravity Backing Store State: NotUseful Save Under State: no Map State: IsViewable Override Redirect State: no Corners: +0+1052 -1920+1052 -1920-0 +0-0 -geometry 1920x28+0-0
Additional details: kenorb 2173 0.0 2.1 1364812 83972 ? Sl 13:42 0:03 /usr/bin/plasma-desktop $ sudo strace -s0 -fp 2173 Process 2173 attached with 6 threads - interrupt to quit [pid 2183] restart_syscall(<... resuming interrupted call ...> <unfinished ...> [pid 2181] futex(0x7f1094616f54, FUTEX_WAIT_PRIVATE, 1, NULL <unfinished ...> [pid 2177] restart_syscall(<... resuming interrupted call ...> <unfinished ...> [pid 2176] restart_syscall(<... resuming interrupted call ...> <unfinished ...> [pid 2174] select(5, [4], NULL, NULL, NULL <unfinished ...> [pid 2173] restart_syscall(<... resuming interrupted call ...>) = 0 [pid 2173] write(3, ""..., 8) = 8 [pid 2173] recvfrom(7, ""..., 4096, 0, NULL, NULL) = 4096 [pid 2173] recvfrom(7, ""..., 4096, 0, NULL, NULL) = 3392 [pid 2173] recvfrom(7, 0x19a36d4, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) [pid 2173] poll([...], 11, 0) = 2 ([...]) [pid 2173] read(3, ""..., 16) = 8 [pid 2173] write(3, ""..., 8) = 8 [pid 2173] write(3, ""..., 8) = 8 [pid 2173] poll([...], 1, -1) = 1 ([...]) [pid 2173] writev(7, [...], 3) = 4 [pid 2173] poll([...], 1, -1) = 1 ([...]) [pid 2173] recvfrom(7, ""..., 4096, 0, NULL, NULL) = 32 [pid 2173] recvfrom(7, 0x19a36d4, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) [pid 2173] recvfrom(7, 0x19a36d4, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) [pid 2173] sendmsg(5, {msg_name(0)=NULL, msg_iov(2)=[...], msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 176 [pid 2173] poll([...], 1, 25000) = 0 (Timeout) [pid 2173] write(3, ""..., 8) = 8 [pid 2173] sendmsg(5, {msg_name(0)=NULL, msg_iov(2)=[...], msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 176 [pid 2173] poll([...], 1, 25000) = ? ERESTART_RESTARTBLOCK (To be restarted) -HUP signal kill the process. When executing it manually, I've the following errors: /usr/bin/plasma-desktop & QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave. QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave. QDBusObjectPath: invalid path "" plasma-desktop(7387)/libplasma Plasma::isPluginVersionCompatible: unversioned plugin detected, may result in instability plasma-desktop(7387)/libplasma Plasma::isPluginVersionCompatible: unversioned plugin detected, may result in instability plasma-desktop(7387)/libplasma Plasma::isPluginVersionCompatible: unversioned plugin detected, may result in instability plasma-desktop(7387)/libplasma Plasma::isPluginVersionCompatible: unversioned plugin detected, may result in instability plasma-desktop(7387)/libplasma Plasma::isPluginVersionCompatible: unversioned plugin detected, may result in instability plasma-desktop(7387)/libplasma Plasma::isPluginVersionCompatible: unversioned plugin detected, may result in instability plasma-desktop(7387)/libplasma Plasma::isPluginVersionCompatible: unversioned plugin detected, may result in instability plasma-desktop(7387)/kdecore (K*TimeZone*): KSystemTimeZones: ktimezoned initialize() D-Bus call failed: "Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken." link XMLID_34_ hasn't been detected! link XMLID_34_ hasn't been detected! link XMLID_36_ hasn't been detected! plasma-desktop(7387) MessageIndicator::adjustViewSize: No parentWidget for applet widget()! plasma-desktop(7387) MessageIndicator::adjustViewSize: No parentWidget for applet widget()! Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString) file:///usr/share/kde4/apps/plasma/plasmoids/notifier/contents/ui/devicenotifier.qml:166:5: QML QDeclarativeListView_QML_20: Possible anchor loop detected on vertical anchor. QGraphicsScene::addItem: item has already been added to this scene link XMLID_34_ hasn't been detected! link XMLID_34_ hasn't been detected! link XMLID_36_ hasn't been detected! QGridLayoutEngine::addItem: Cell (0, 1) already taken (process:7387): GLib-GIO-WARNING **: Received property menu with type s does not match expected type o in the expected interface After 5 minutes it appeared, but the problem is the same.
New errors: link XMLID_34_ hasn't been detected! link XMLID_34_ hasn't been detected! link XMLID_36_ hasn't been detected! QGridLayoutEngine::addItem: Cell (0, 1) already taken (process:7387): GLib-GIO-WARNING **: Received property menu with type s does not match expected type o in the expected interface void DBusMenuImporter::slotGetLayoutFinished(QDBusPendingCallWatcher*): "No such interface `com.canonical.dbusmenu' on object at path /" X Error: BadWindow (invalid Window parameter) 3 Major opcode: 20 (X_GetProperty) Resource id: 0x5600012
Errors follow-up: link XMLID_34_ hasn't been detected! link XMLID_34_ hasn't been detected! link XMLID_36_ hasn't been detected! QGridLayoutEngine::addItem: Cell (0, 1) already taken (process:7387): GLib-GIO-WARNING **: Received property menu with type s does not match expected type o in the expected interface void DBusMenuImporter::slotGetLayoutFinished(QDBusPendingCallWatcher*): "No such interface `com.canonical.dbusmenu' on object at path /" X Error: BadWindow (invalid Window parameter) 3 Major opcode: 20 (X_GetProperty) Resource id: 0x5600012
Recent link with the similar problem which I found: http://www.mail-archive.com/active@kde.org/msg00243.html
Related dbus bug: https://bugs.freedesktop.org/show_bug.cgi?id=55136
Before I was using Unity, but it was even worse, it was freezing all the time, crashing, lots of missing options, just a nightmare. So KDE plasma is kind of relief for me, but it's still not perfect.
Current follow-up: https://bugs.launchpad.net/ubuntu/+source/kde-baseapps/+bug/1053910
bug is marked as fixed in the downstream bug tracker