The TPM still works with AEM and the rest of the hardware works with the
following exceptions:
* Built-in speakers usually don't work unless a phono plug/headphones
has been inserted and removed from the headphone jack (and then volume
turned up from zero) during a session. External headphones and speakers
work reliably. (Same as R2)
* The ethernet port only works intermittently, usually after the system
has been booted with another distro like Ubuntu (this seems to satisfy
some reset condition that the ethernet device doesn't get from
Xen/Qubes). (Same as R2)
* External USB drives attached to VMs formerly worked after a
sleep/resume cycle. Now they are frozen after resuming, potentially
causing data loss. The attached VM sometimes responds to input (except
for external drive operations) but shutdown will not work -- the VM must
be killed instead. (New problem)
* Built-in bluetooth now appears to be unusable, whereas before
assigning the USB bus to an Ubuntu HVM worked for some cases like mono
headset mode. (New problem)
* Under R2 the screen brightness keys did not work (or worked badly).
Now they work properly.