Hello, i have Debian 11 desktop VM with KDE running on Debian 11 machine using KVM. I'm migrating from current Dell T1700SFF with i7 CPU to Dell R420 with xeon processor.
I used dd to transfer disks from old machine to new and then copied it's vm.xml from libvirt. When i launch desktop on new server, i get this Executable: ksplashqml PID: 2146 Signal: Illegal instruction (4) Time: 2/11/22 10:12:49 AM CET and dmesg says [ 248.820494] traps: QSGRenderThread[2145] trap invalid opcode ip:7fd5842f6027 sp:7fd5858a0820 error:0 ksplash, plasmashell, systemsettings5 - all does not work, crashes with illegal instruction. But for example kwin, konsole, dolphin - all this is started in my KDE session. What can be the problem? I checked filesystem on cloned machine with btrfs scrub, tried to reinstall libc6 and all libqt5 packages, also run debsums to check all files - everything was OK. I also tried to upgrade libvirt (7.0 -> 8.0) and qemu (5.2 -> 6.2) on my new server. I use nomachine to connect to desktop. Also tried xrdp. Also connected via ssh and started systemsettings5, with the same error Any clues? Thanks, Libor
