donoban:
On 1/31/21 6:26 PM, Fabrizio Romano Genovese wrote:
Ok, I found something: Running `xl dmesg` there's a line that says:
(XEN) Failed to parse ACPI DMAR. Disabling VT-d.
I only think to try updating BIOS or using Qubes R4.1 which has newer
Xen version (although is pretty unstable yet). It will help to know if a
newer Xen version runs ok.
Try donoban's suggestions for sure, but if that still doesn't help you
might get more pointers in the log from messages just prior to the one
quoted above. Disabling onboard/PCIe devices such as USB
controllers/network cards might let you work around the problem as well.
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