On 11/02/2022 09:22, Libor Klepáč wrote:

I'm migrating from current Dell T1700SFF with i7 CPU to Dell R420 with
xeon processor.

and dmesg says
[ 248.820494] traps: QSGRenderThread[2145] trap invalid opcode ip:7fd5842f6027 sp:7fd5858a0820 error:0

I think this is much more likely to be a KVM issue than a KDE one, but
what exactly, I cannot say. Something like, new CPU is missing some instructions that old CPU had?

alexd

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On 14/02/2022 08:43, Libor Klepáč wrote:

But it seems to be interesting, that some HW fingerprint is embeded in
KDE config.

Well...it's going to be the Qt libraries that use whatever these
functions are, probably not KDE itself. But I never had this issue when
using same KDE profile shared to different machines with NFS. So I don't
really know what the cause is here.

alexd

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