SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** I just installed KDE to try it out. Most things seem to respond quickly. But when I use Alt-Tab to switch windows, it is quite slow. It takes about 2 seconds to either switch immediately to a new window, or about 2 seconds to bring up the window list. When I bring up the list, the delay is in displaying the list. Once I choose a new window and release the keys, the new window is selected quickly. I'm using the compact switcher, but I'm seeing the delay with different switchers too. STEPS TO REPRODUCE 1. Press Alt-Tab 2. Wait about 2 seconds for the new window to be selected, or window list to be displayed 3. OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: 5.27.8 KDE Frameworks Version: 5.109.0 Qt Version: 5.15.10 Graphics Platform: X11 Fedora 38 x86_64 ADDITIONAL INFORMATION Operating System: Fedora Linux 38 KDE Plasma Version: 5.27.8 KDE Frameworks Version: 5.109.0 Qt Version: 5.15.10 Kernel Version: 6.4.15-200.fc38.x86_64 (64-bit) Graphics Platform: X11 Processors: 8 × Intel® Core™ i7-7700 CPU @ 3.60GHz Memory: 31.3 GiB of RAM Graphics Processor: NVIDIA GeForce GTX 1050/PCIe/SSE2 Manufacturer: LENOVO Product Name: 10MNS38000 System Version: ThinkCentre M910t
I suspect NVIDIA issues. Are you using the proprietary NVIDIA driver, or the Nouveau driver? Also, does the same thing happen in the Wayland session too? Or is it only reproducible in the X11 session?
I won't be able to answer until next week, sorry.
I'm running the NVidia driver. Nouveau just doesn't work well enough to use for me. I have since updated and rebooted my machine and am not currently seeing the slow delay. Is there any useful info I can provide to possibly track down an intermittent glitch like this?
Sounds like something in the update may have fixed it!