So I have been on 6.1.7 for a long while, and was doing some updates last night.  Not thinking about possible issues I went to 6.3.3 and now my VM is having lots of performance issues.  Updated to the latest nvidia drivers, but video and sound stutter a lot and are very slow (i.e. youtube, games, etc).

 

I recall I spent a lot of time getting the HDMI sound working before, but this is more than sound (its there, but tons of static and slow).  Any chance anyone else has experienced this?  Did a bit of searching and didnt find similar issues, likely missed it.  Thanks in advance.  Might have to look into downgrading back to 6.1.7 I think.

Ok, read every post I could find and tried lots of tricks, but the fix appears to be the VM nic settings.  Machnie type of 2.7 didnt help.  virtio drivers didnt make a difference.  Changing from br0 to virbr0 and all is back to 'normal'.  I will note I am getting a lot of these

smbus: error: Unexpected recv start condition in state 3
smbus: error: Unexpected read in state -1
smbus: error: Unexpected NACK in state -1
smbus: error: Unexpected NACK in state -1

but not seeing any fix yet for that in other posts.  Truth is this has just been running for the last couple years so I was behind on a lot of drivers.  Thanks.