Created attachment 1245051 [details] kde-fedora-25-missing-window-titles.png I did a default installation of Fedora 25 in qemu, using: nice -n 19 ionice -c 3 qemu-kvm -machine pc-i440fx-2.4 -enable-kvm -global qxl.ram_size=1x1024 -m 2048M -smp 2 -drive file=./Fedora-Workstation-netinst-x86_64-25-1.3.iso.qcow2,index=0,media=disk,cache=unsafe -localtime -serial file:/tmp/qemu-Fedora-Workstation-netinst-x86_64-25-1.3.iso.qcow2-output.log -name Fedora-Workstation-netinst-x86_64-25-1.3.iso.qcow2 -cdrom /local/mfabian/iso/Fedora-25/Fedora-Workstation-netinst-x86_64-25-1.3.iso -boot c -spice port=6002,disable-ticketing,streaming-video=off -vga qxl -display vnc=:6 -net nic -net user,hostname=Fedora-Workstation-netinst-x86_64-25-1.3.iso.qcow2,hostfwd=tcp::5556-:22 -monitor stdio -usb -usbdevice mouse -soundhw all After the installation, I added KDE using sudo dnf groupinstall kde-desktop-environment Then I logged into KDE and started a konsole. The konsole window had no titlebar. See screenshot.
The usual reason for no title bars is that there is no window manager running, in this case, kwin. Maybe it crashed. Try krunner (alt-f2): kwin_x11 --replace and see if that helps?
(In reply to Rex Dieter from comment #1) > The usual reason for no title bars is that there is no window manager > running, in this case, kwin. Maybe it crashed. [mfabian@Fedora-Workstation-netinst-x86_6 ~]$ ps aux | grep kwin mfabian 3363 0.0 0.0 121212 944 pts/2 S+ 07:40 0:00 grep --color=auto kwin [mfabian@Fedora-Workstation-netinst-x86_6 ~]$ It does indeed not seem to be running.
(In reply to Rex Dieter from comment #1) > The usual reason for no title bars is that there is no window manager > running, in this case, kwin. Maybe it crashed. > > Try krunner (alt-f2): kwin_x11 --replace > > and see if that helps? I tried that, now there seems to be a kwin running: [mfabian@Fedora-Workstation-netinst-x86_6 ~]$ ps aux | grep kwin mfabian 3396 5.1 5.6 3549584 115660 pts/1 Tl 07:42 0:01 kwin_x11 --replace mfabian 3411 0.0 0.0 121212 996 pts/2 S+ 07:42 0:00 grep --color=auto kwin [mfabian@Fedora-Workstation-netinst-x86_6 ~]$ But I still see not title bars and I cannot even type into konsole anymore and the KDE menu at the lower left doesn’t work anymore.
After yet another "sudo dnf update" today, the problem disappeared.
ok, thanks. (guessing an odd bug in some other component, maybe video driver related)