Xubuntu: 16.04
Qemu-KVM: 1:2.5
System: Dual Xeon E5-2630 v2 CPUs, 32GB RAM, Nvidia K-4000 GPU
Well over a year ago I created a VM (2 CPU cores, 2048 MB RAM, 30 GB disk) and installed Windows 8.1. I cloned the VM and immediately upgraded to Windows 10. Both VM images have run successfully since then, although the Win-10 is the only one being actively used. I upgraded Xubuntu from 15.10 to 16.04 a couple of months ago and everything appeared to be OK. I'm pretty sure that I used Win-10 successfully a few times after the upgrade. Since then there have been a few software updates, to 16.10 but I see nothing in the logs that would obviously be related to the following problem.
About a week ago I started up the Win-10 VM. It boots, shows the early Windows logo and then the screen goes gray and the spinning circle icon is displayed. This spinning icon never quits and the Windows desktop never displays regardless of how much time passes. Usually the gray screen continues to be displayed, but a couple of times, after a few hours passed, the Windows login screen with the user picture might appear, but still the icon spins and there is no access to the desktop ever. Despite this, the OS actually has booted fairly quickly and I can access the Windows filesystem remotely using the Linux file manager. (Nemo in my case.) I can shutdown and reboot the VM as often as I like and Windows appears to be running behind the scene, but it will not display the desktop. While this is happening, the VM console shows the VM CPU pegged at 100% and this continues indefinitely.
I can start the Win-8 VM and it boots and operates just fine. I thought I might have a corrupted disk image or that Microsoft had updated something that caused a problem. I had a Win-10 backup image file from January, so I copied it in place and rebooted, but I get the identical behavior.
I am using an Nvidia K-4000 GPU and read that some people had display problems with the Nvidia-361.45.18 driver; problems which were fixed by installing the nvidia-364.19 driver. I installed and am now running this, hoping for some improvement, but no luck.
So I'm in need of some suggestions as to what might be wrong. Why did a working Win-10 stop working, and why does Win-10 run, but fails to display graphics, while Win-8 works fine? Thanks for any suggestions.
Qemu-KVM: 1:2.5
System: Dual Xeon E5-2630 v2 CPUs, 32GB RAM, Nvidia K-4000 GPU
Well over a year ago I created a VM (2 CPU cores, 2048 MB RAM, 30 GB disk) and installed Windows 8.1. I cloned the VM and immediately upgraded to Windows 10. Both VM images have run successfully since then, although the Win-10 is the only one being actively used. I upgraded Xubuntu from 15.10 to 16.04 a couple of months ago and everything appeared to be OK. I'm pretty sure that I used Win-10 successfully a few times after the upgrade. Since then there have been a few software updates, to 16.10 but I see nothing in the logs that would obviously be related to the following problem.
About a week ago I started up the Win-10 VM. It boots, shows the early Windows logo and then the screen goes gray and the spinning circle icon is displayed. This spinning icon never quits and the Windows desktop never displays regardless of how much time passes. Usually the gray screen continues to be displayed, but a couple of times, after a few hours passed, the Windows login screen with the user picture might appear, but still the icon spins and there is no access to the desktop ever. Despite this, the OS actually has booted fairly quickly and I can access the Windows filesystem remotely using the Linux file manager. (Nemo in my case.) I can shutdown and reboot the VM as often as I like and Windows appears to be running behind the scene, but it will not display the desktop. While this is happening, the VM console shows the VM CPU pegged at 100% and this continues indefinitely.
I can start the Win-8 VM and it boots and operates just fine. I thought I might have a corrupted disk image or that Microsoft had updated something that caused a problem. I had a Win-10 backup image file from January, so I copied it in place and rebooted, but I get the identical behavior.
I am using an Nvidia K-4000 GPU and read that some people had display problems with the Nvidia-361.45.18 driver; problems which were fixed by installing the nvidia-364.19 driver. I installed and am now running this, hoping for some improvement, but no luck.
So I'm in need of some suggestions as to what might be wrong. Why did a working Win-10 stop working, and why does Win-10 run, but fails to display graphics, while Win-8 works fine? Thanks for any suggestions.