SUMMARY I pluged in my Edimax EW-7811 and set up a hotspot using create_ap. Then later I shut down create_ap and disconnected the adapter. Then the desktop is behaving strange after clicking the wifi icon in the taskbar. The clock freezes, new windows won't open and already open windows can't be brought to the foreground. I think this happened to me with other adapters in the past too, but I am not sure about that. Right now, I don't have any other adapters STEPS TO REPRODUCE 1. Plug in a Edimax EW-7811 2. Setup a hotspot using create_ap 3. Shut down create_ap 4. Unplug the adapter OBSERVED RESULT The clock (in the taskbar) freezes, new program windows can't be opened, already open windows freeze EXPECTED RESULT The GUI should not freeze SOFTWARE/OS VERSIONS Operating System: Manjaro Linux KDE Plasma Version: 5.18.3 KDE Frameworks Version: 5.68.0 Qt Version: 5.14.1 Kernel Version: 5.5.13-1-MANJARO OS Type: 64-bit Processors: 8 × AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx Memory: 13,6 GiB ADDITIONAL INFORMATION I don't know if this is the right place to post, since it is the first time I submit a bug.
Can you give a backtrace? Make sure debugging symbols for plasma-nm (and probably plasma-workspace and maybe some of Qt) are installed, then on a terminal type: gdb plasmashell Once it is loaded, type run to start it. Wait for that to finish (it'll take a bit longer than a normal startup) and then do whatever you did to make it freeze. Hit Ctrl+C in the gdb window to interrupt it and type thread apply all bt and paste the output here. I suspect it's networkmanager-qt waiting on some DBus reply for something that doesn't exist anymore.
How do I assure that the debugging symbols, which are needed, are installed and set up correctly?
Can you please test if the desktop responds again, if you kill '/usr/bin/networkmanager' in another TTY? If so, it may be related or a duplicate of #409392 I guess.
*** This bug has been marked as a duplicate of bug 409392 ***