Version: unspecified (using Devel) OS: Linux Everytime dbus checks for updates plasma freezes for up to 20-30 seconds. With an unstable wlan/internet connection, i.e. some network calls timing out it happens every few minutes. A frozen plasma results in it not accepting any clicks, not opening any pop-ups etc. Confirmed by multiple users on openSUSE and Kubuntu, e.g. bug 287002 comment 73 and 80. Stopping apper's update monitor via systemsettings or killing the sentinel processes solves the problem. Happens with 4.7 and 4.8. Reproducible: Always Steps to Reproduce: Start apper's update monitor Wait until it updates Actual Results: Plasma freezes Expected Results: No freeze
According to bug 287002#c84 the blocking only happens if the wireless network is enabled. Yet it's definitely apper causing it since the freezes do not happen if apper is disabled.
Can someone please try Apper from git? I changed some blocking code that should block kded (not plasma) bug... who knows if this wasn't the reason since the network applet AFAIK talks to kded...
*** Bug 287002 has been marked as a duplicate of this bug. ***
For me, it happens when i insert an usb 3g modem. I have to wait aproximatelly 20 seconds to click any part of the panel, basically, i cannot use the panel until the modem is ready to be dialed in by NM. Fedora 16 X86_64 (KDE 4.7.4) NetworkManager.x86_64 1:0.9.2-1.fc16 device-mapper.x86_64 1.02.65-6.fc16
I have changed Apper daemon to not do blocking calls but NetworkManager is also guilt of doing some of those too, so please try Apper from git and report if the error is gone. Thanks
Seems better with 0.7.1. Still there are two apper-sentinel processes started when logging into KDE.
Is there a way to disable Apper? Every single time I boot my desktop computer, KDE freezes for 20 seconds, so we can find out a lot of things if we manage to disable apper and not letting it freeze the boot process
Options include: 1. uninstall apper 2. systemsettings -> startup&shutdown -> service manager -> uncheck apper monitor 3. apper -> click wrench (on right) -> settings -> check for updates: never (though this might not completely stop it)
I don't have apper installed but I have the exact same symptoms - plasma freezes for a good 20+ seconds until my wirless connects. Kubuntu 12.04, kde 4.8.3
Apper was fixed not to block (the next version will even use Thread so people stop blaming it) The issue as I told before is that networkmanager should stop doing sync, imo it should also use a thread in KDED to avoid locking other stuff in kde...
I have the same problem and I don't have apper installed Kubuntu 12.04 and KDE 4.8.3 The plasma remains locked indefinitely until in System Monitor I send Interrupt signal. That works once. The next time it doesn't work anymore and the plasma will remain locked.
This issue was also caused by NetworkManager, and Apper 0.7.2 doesn't has this anymore since it uses now a separate thread now.
I am experiencing this bug in KDE 4.9.3, 4.9.4 and KDE networkmanagement widget 0.9.0.5. When I use network networkmanagement widget to establish a VPN connection, and the connection is abnormally terminated or has server lags, the entire KDE GUI seems to freeze. After a couple of seconds (20-30) the GUI is responsive for a short time and freezes then again. To solve this I have to kill X. I never had the patience to wait for the GUI to recover. No "Apper" installed by the way So this bug might be a regression? Cheers, Bjoern
I don't think it's a regression. All Apper code got moved to a thread to avoid this kinds of blocks (which a few were due to a combination with network manager). On the other hand Network Manager just changed most of it's code just to be async, but not all, so I bet you are hitting the part that is still blocking, please report a new but against network manager, since this bug was about Apper. Thanks.
Thanks for the fast response. I added bug #311484 Cheers, Bjoern